1679

Thermal overload relays

NA10FC3T 001222

1680

000623S022003

Thermal overload relay M 06for use withKL 2...- and KL 4... contactorsAccessories

Approvals:

Thermal overload relay M 06

Accessories:Adapter block to mount M 06 thermal overload relay separatelysnaps on to 35 mm DIN rail (DIN EN 50 022).

Type Order ref.: Weight Dimensionskg page

EM 3 310 001 01 0.100 1688

Type Current range Order ref.: Contact Fuse size Weight Dimensionsconfiguration kg page

aM1) gL2)

M 06 ... A A A

Use of the back-up fuse quoted will give type 2 short-circuit protection to IEC 947-4.

Extract from IEC 947-4 : No damage shall occur to the motor protection relay.Welding of contactor contacts is acceptable provided contacts can be easily separated.

Mounting : directly beneath contactor (only contactor with screw terminals).For wiring, see page 1681.

Separate mounting: using adapter block quoted aboveOn front face of unit:- Reset: selectable: hand ("H") or auto ("A")- Blue button: stop and hand reset- Yellow mechanical indicator: appears once relay has tripped.

1) aM-fuse 10.3 x 38 mm to be used

2) gL-fuse up to 2 A, fuse terminal to be used

Modern motor protection relay for direct mountingto KL 2 and KL 4 mini contactorsSeparate mounting through adapter blockPrecise tripping characteristicsTemperature compensated from -20°C to +55°CPhase failure sensitive to IEC 947 to give protectionto motor on single phasingElectrically separate N/O and N/C contactsHand/auto reset, manual trip test facilityFingerproof to VDE 0106, Part 100Safety isolation up to 400 V to VDE 0106, IEC 536Tripped indicationHand/auto reset, current setting can be sealed

Characteristics

Notes

M 06-0.16 0.11...0.16 1 310 201 27 0.25 0.5

M 06-0.23 0.16...0.23 1 310 202 27 0.25 0.5

M 06-0.36 0.23...0.36 1 310 203 27 0.5 1

M 06-0.54 0.36...0.54 1 310 204 27 1 1.5

M 06-0.8 0.54...0.8 1 310 205 27 1 2

M 06-1.2 0.8...1.2 1 310 206 27 1 N/O and 1 N/C 2 4 0.145 1688

M 06-1.8 1.2...1.8 1 310 207 27 2 6

M 06-2.6 1.8...2.6 1 310 208 27 4 8

M 06-3.7 2.6...3.7 1 310 209 27 4 10

M 06-5.5 3.7...5.5 1 310 210 27 6 16

M 06-8 5.5...8 1 310 211 27 8 20

M 06-11.5 8...11.5 1 310 212 27 10 25

1681

000623

Method 2

Description:Internal wiring is not required when building up a control in the normalconfiguration. N/C contact 95/96 can be connected to coil termination A1.When doing this, remove the two connecting pins using side cuttingpliers. This applies also where voltages applied to contactor and thermaloverload relay are different.

Hand/auto reset

Lift off transparent cover. The desired reset mode can now be set on a2 position switch:- left hand position: ("H") = hand reset- right hand position: ("A") = automatic resetThe cover, when closed, will lock the selector in position.To reset the overload relay by hand, press the blue RESET/STOPbutton.

TEST function

The test function is carried out by pressing the red TEST button with the2 position switch in the "H" position.Pressing this button will simulate tripping of the overload relay:- both N/C and N/O auxiliary contacts will operate- the mechanical indicator will appearThe cover, when closed, will lock the TEST function.To reset the overload relay, operate the blue RESET/STOP button.

Wiring

There are two ways to wire the M 06 thermal overload relay in the controlcirucit

Method 1 (state in which supplied)

Description:Terminal 95 and terminal 96 are internally wired and connected to the pins onthe right hand side of the relay. The pins go to terminals 14 (22) and A2 on thecontactor.

N/C contact 95/96 is connected in series with coil termination A2.

Setting the relay

Lift off transparent cover. Settings are now accessible.Set desired value using potentiometer with ampere dial plate.Setting can be locked by sealing the cover.

STOP function

Press blue RESET/STOP pushbutton to stop the relay.Pressing this button will only operate the N/C contact. The N/O buttonwill remain unaffected.

S022004

Thermal overload relay M 06Technical information

1682

000919S022005

Thermal overload relaysM 23 K and M 40 Kfor use with compact contactorsDL 4 K to DL 18 KAC/DC-version

Approvals:

M 23 K also approved

Type Setting range Max. permissible Order ref.: Contact Max. fuse Weight Terminalsetting value configuration size kg capacitiesfor contactor type DL numbering class gL

A to A A

M 23 K 0.12...0.18 1 245 501 27 0.75 flink

0.18...0.28 1 245 502 27 1 flink0.28...0.4 1 245 503 27 2 flink0.4...0.63 1 245 504 27 2

0.56...0.80 1 245 505 27 20.63...1.00 1 245 506 27 40.8...1.2 1 245 507 27 41.0...1.5 1 245 508 27 61.2...1.8 1 245 509 27 61.5...2.3 1 245 510 27 6

1.8...2.8 1 245 511 27 62.3...3.5 1 245 512 27 102.8...4 1 245 513 27 103.5...5 8.5 DL 4 K .. 1 245 514 27 164...6.3 1 245 515 27 165...7 1 245 516 27 205.6...8 11.5 DL 5 K .. 1 245 517 27 207...10 1 245 518 27 258...12.5 1 245 519 27 2510...15 15.5 DL 7 K .. 1 245 520 27 3511...17 1 245 521 27 40

15...23 22 DL 11 K 1 245 522 27 50

M 40 K 11...17 1 245 634 27 4016...25 1 245 635 27 5020...32 30 DL 15 K 1 245 636 27 6325...40 37 DL 18 K 1 245 637 27 80

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Type Order ref.:

LA 2.1 for 17...33 V AC/DC 3 245 002 01 with 2 LEDsLA 2.2 for 110...250 V AC/DC 3 245 002 02 with neon-glow lamp

Accessories: indicator module to indicate switch positions

* Remove terminal lugs on M 40 K. Fit lugs supplied with terminal block.Replacements: M 23 K replaces M 9 and M 22 K

M 40 K replaces M 36 K

Accessories: terminal block for independent mounting

Multi-function button: possible settings - page 1687

Dimensions - page 1688

Type Order ref.:

EM 2 for M 23 K 3 245 001 01EM 3 for M 40 K* 3 245 010 01

Characteristics

Modern motor protection relay for direct mountingto KL 2 and KL 4 mini contactorsSeparate mounting through adapter blockPrecise tripping characteristicsTemperature compensated from -20°C to +55°CPhase failure sensitive to IEC 947 to give protectionto motor on single phasingElectrically separate N/O and N/C contactsMulti-function buttonHand/auto reset, manual trip test facilityFingerproof to VDE 0106, Part 100Safety isolation up to 400 V to VDE 0106, IEC 536

1683

M 80 N 32...50 44 DL 22 N 1 245 741 27 10040...57 1 245 851 27 10050...63 60 DL 30 N 1 245 852 27 100 0.2757...70 1 245 853 27 12563...80 79 DL 42 N 1 245 854 27 125

M-b 177 S 63...90 1 222 221 27 20080...110 1 222 222 27 20090...120 119 DL 65 N 1 222 110 27 224 0.75110...135 1 222 111 27 315120...150 1 222 112 27 315135...160 170 DL 90 N 1 222 113 27 315150...180 205 DL 110 N 1 222 114 27 315

M-bw 17 S 4...6.3 1 222 100 27 255.6...8 1 222 101 27 40 1.38...12 1 222 102 27 6311...17 1 222 103 27 80

M-bw 37 S 15...23 1 222 104 27 125 1.322...32 1 222 105 27 160

M-bw 47 S 30...46 1 222 106 27 200 1.3M-bw 77 S 42...62 1 222 107 27 224 1.3

56...80 1 222 108 27 250M-bw 117 S 80...120 119 DL 65 N 1 222 109 27 355 1.4M-bw 207 S 120...180 205 DL 110 N 1 222 115 27 500 1.5

150...210 215 DL 132 N 1 222 116 27 630M-bw 320 S 200...320 245 DL 132 N 1 222 117 27 500 2.3 M10x80

295 DL 165 NM-bw 721 Sw 310...500 460 DL 245 N 1 222 118 27 800 4.15 M16x120

450...720 499 DL 270 N 1 222 119 27 1000

S022006

Thermal overload relaysM 80 N, M-b ...and accessories

Thermal overload relays for separate or directmounting using connection links.Type M-bw relays with saturable core transformerare designed to give protection to high-inertia threephase AC motorsTemperature compensated from -20°C to +60°CPhase failure sensitive to IEC 947 to protect motoron single phasingElectrically separate N/O and N/C contactsMulti-function buttonTrip times adjustable between 20 to 30 seconds ontypes M-bw 17 S to M-bw 207 SOptional terminal shrouds to give protection toVDE 0106 Part 100Safety isolation up to 400 V to VDE 0106, IEC 536

Approvals:

Type Setting range Max. permissible Order ref.: Contact Max. fuse Weight Terminalsetting value configuration size kg capacitiesfor contactor type DL numbering class gL

A to A A

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Accessories: Sets of links for connection to DL 65 N - DL 270 N, DL 22 N - DL 42 N contactorsfor contactor type : therm. overload type: Order ref.: for contactor type : therm. overload type: Order ref.:

Overload Screw connection by means Max. cable lug Max. flat blade Connecting Connecting washer 1)

Type of connecting washer mm2 to DIN 46 234 connection mm screw DIN 46 288

Connection to main circuits

M-bw 17 S 2 x 1 ... 4 5...25 15 M 5 x 16 A 5M-bw 37 S 2 x 2.5 ... 10 5...25 15 M 5 x 16 A 5M-bw 47 S 2 x 4 ... 16 5...25 15 M 5 x 16 B 5-1M-bw 77 S - 6...25 15 M 6 x 16 -M-bw 177 S - 8...25 20 M 8 x 16 -M-bw 207 S - 10...15 20 M 10 x 16 -

1) For cable lug connection replace by spring ringand washer

Replacement: M 80 N replaces M 81

Dimensions pages 1688-1689

Description of functions page 1687

DL 65 N, DL 90 N M-b 177 S 80...180 3 284 158 01 DL 132 N, DL 165 N M-bw 320 S 3 292 070 01DL 65 N M-b 177 S...90 A 3 284 158 02 DL 245 N M-b 721 Sw 3 283 060 01DL 110 N, DL 132 N M-bw 207 S 3 243 048 01 DL 270 N M-b 721 Sw 3 184 334 01DL 22 N...DL 42 N M 80 N Links are supplied with overload

Characteristics

000731

1684

000623S022007

Accessories: reset button, terminal shrouds

Type Order ref.:

Reset button round 22.5 mm Ø, front ring chromium 3 720 420 28legend insert black, "R" in white

Reset button with adjustable plunger length for molded and sheet-steel enclosure with cover

Type Order ref.: Notes

DL 65 N / DL 90 N 3 284 148 04 retrofitting

DL 90 N + M-b 177 S / DL 65 N + M-b 177 S 3 284 148 05 not fitted as standard

DL 110 / 132 N + M-bw 207 -S 3 243 049 01 not fitted as standard

DL 110 N ... 270 N 3 284 156 02 shroud with M 12 connecting screw (1 set = 6 off)

M-bw 17 S ... M-bw 207 S 3 222 019 01 not fitted as standard

M-b 177 S 3 222 018 01 not fitted as standard

DLDAe 110 / 160 N (1 set = 3 off) 3 284 148 03 not fitted as standard

Fitting/supply at extra cost

Terminal shrouds for use with contactors and thermal overload relays to VDE 0106, Part 100 (VBG-4)

General informations thermal overload relaysThermal overload relays M 06, M 23 K, M 40 K, and M80 N to M-b 721 SwThe thermal overload relays are all temperature compensated from -20°C to +60°C. This ensures that they remain fully operative even under extreme operatingconditions and guarantees that the values specified by VDE 0660, Part 104, are met within this temperature range.To protect three-phase motors in the event of phase failure, e.g., caused by broken wire or blown fuse, the relays are fitted with a differential trippingmechanism. This means the relay will trip even below the set rated current value (see characteristic curve) if the current in a three-phase network flows onlythrough two conductors so that only two bi-metal elements heat up.The relays are convertible from manual to auto reset. They are fitted with 1 N/C and 1 N/O contact as standard.

Thermal overload relay type M-bw with saturable transformerThermal overload relays with saturable transformers are used for the protection of heavy duty motors. The units comply with inertia group T II, but their tripcharacteristics are especially slow.

Type : LA 2.1 / LA 2.2 indicator moduleType LA modules are used as signaling and warning lights to indicate switch positions on units with snap-on front lables. For voltages up to 33 V, nonparallelarrangement of the LED will cause polarity independent indication with integral suppression on DC coils (protection from inductive peak voltages, suppressionhowever being less than that of a recovery diode). One of the two LEDs will light, depending on polarity direction.

Mounting and wiringRemove white device front label. Snap on LA module. The grey module flylead is preferably connected to A 2 termination of the coil. The brown module fly leadcan be connected, as required, as an alarm signaling or switch position indicating lamp.Connection: M 3 screw with washer to connect 2 x 1.5 mm2.

Versions17...33 V AC/DC* with 2 LEDs * Can also be connected in series with a PLC-input.110...250 V AC/DC with neon lamp

LA 2 module connected to o/I relay with c/o contact

LA2-Module

LEDantiparallel

1685

000623

Motor protection equipment 1 2 3 4 5 6

Contactor, Circuit breaker Circuit breaker Contactor, Circuit breaker Contactor,phase failure with thermal with electro- thermistor with thermal overload relaysensitive over- and electro- magnetic over- motor protec- and electro- thermistorload relay, magnetic over- load trip device tion relay, magnetic over- motor prote-fuse load trip thermistor fuse load trip tion relay,

device motor protec- device fusetion relay thermistor motor

protection relay

Continuous overloading

Starting and breakingtimes too long

Irregular intermittent duty

Switching frequency too high

Single phasing and 1)

current unbalance

Voltage andfrequency fluctuations

Rotor locked

Starting under lockedrotor conditions

Stator-critical motors

rotor-critical motors

Increased ambient temperature

1) When using phase-failure sensitive overload relay

S022008

Motor protection - Typical applications

Select from the six options according to your requirements

No protection

Limited protection

Full protection

1686

000623S022009

General informationfor thermal overload relays

Trip class 10 A 10 20 30

Max. trip time at 1.5 x current setting (s) 120 240 480 720(warm state)

Trip time at 7.2 x current setting (s) 2...10 4...10 6...20 9...30

(cold state)

When the tripping time of 30 s is exceeded (at 7.2 x setting current from cold state) instead of the tripping class the maximum tripping time in seconds is indicated.

Our thermal overload relays correspond to tripping class 10.

Our thermal overload relays can also be used for protection of motors in the degree of protection EExe. For the selection of the thermal overload relays, pleaseprovide the following information: IA / IN and the TE-time. Information can be taken from the motor rating label.

Characteristic trip curves are available on request.

When thermal overload relays are used in star-delta assemblies, set relay pointer to 0.58 times the value of the rated motor current or select suitable model.

Motor Overload Protection

Thermal Overload Relays

GeneralContactors and contactor assemblies can be suppliedwith thermal overload relays for the protection ofmotors against excessive high currents. When ordering,care must be taken to ensure that the correct relaycurrent range is selected in conformity with the ratedmotor current. The overload relays are designed fora switching frequency of 15 to 30 ops/hr. Higherswitching frequencies heat up the bi-metal strips,thereby causing premature tripping.

Trip class of the thermal overload relays

Technical details

Notes

1687

000623S022010

Technical details - Thermal overload relaysIEC 947-4 and/or VDE 0660 Part 102

Rated insulation voltage Vi 690 690 690 690 690 690 690

Current setting range A to 11.5 A to 23 to 80 to 180 5.6...210 200...320 310...720to 40

Power dissipation per polecircuits W 2 1.3...2.0 1.9...4.8 5.3...12.8 4.5...6 - -

Overload type M 06 M 23 K M 80 N M-b 177 S M-bw 17 S M-bw 320 S M-bw 721 SwM 40 K bw 207 S

Main circuits

Rated insulation voltage Vi 690 400 400 400 400 400 400

Rated thermal current Ith A 6 4 6 6 6 6 6

Max. control fuse rating A/slow 6 6 6 6 6 6 6

AC 15 220 V/230 2.5 2 3 2 2 2 2

Rated operational current Ie 380 V/400 1.5 1.5 2 1.5 1.5 1.5 1.5of c/o : A 500 V 1.0 0.5 1.5 0.5 0.5 0.5 0.5

DC 13 24 V 1 1 1 1 1 1 1

Rated operational current Ie 60 V 0.5 0.5 0.75 0.5 0.5 0.5 0.5

of c/o : A 110 V 0.4 0.25 0.4 0.25 0.25 0.25 0.25L/R ≤ 15 ms 220 V 0.2 0.1 0.2 0.1 0.1 0.1 0.1

Shock resistance N/C 10 g - - - - - -(half-sine wave,duration: 11 ms) N/O 10 g - - - - - -

Overload type M 06 M 23 K M 80 N M-b 177 S M-bw 17 S M-bw 320 S M-bw 721 SwM 40 K bw 207 S

Auxiliary circuits

Brief description

In safety positions -A- and -H- the button functions for switching are locked whereas in positions -HAND- and -AUTO- the switching and the simulation of trippingdirectly at the relay is possible by operating the multi-function button.In positions -H- and -HAND- the tripped relay must be reset manually, whereas in positions -AUTO- and -A- the tripped relay is reset automatically.

The setting of the functions is done by gently turning the red function selection knob (FWK) to the marks of the grey RESET-button (R). Passing from -HAND- to -AUTO-the grey RESET-button must be slightly pressed at the same time.

Multi-function button R : positions

Pressing H 1) Hand Auto A 1)

the button :

Resetting the relay ✘ 2) ✘ 2)

Switching off Testing the N/C ✘ ✘the unit connected Contact 95-96 open

Switching off Testing the N/O ✘ ✘the unit connected Contact 97-98 closed

Reset Manual reset Auto reset

Hints for setting Red function selection Gently turn red State in Press grey button Gently turn redknob which shipped (R), Gently turn knob

red knob

1) N/C contact cannot inadvertently be operated in positions H and A. 2) Allow unit a short time to cool in the tripped state.More technical information available on request.

Possible settings on M 23 K ... M-bw 721 Sw

1688

000623

Dimensions - Thermal overload relays

Direct mounting to contactor Independent mounting to 35 mmDIN rail using EM adapter block

M 06 thermal overload relay

M 23 K thermal overload relay

M 40 K / M 80 N thermal overload relay

M-b 177 S thermal overload relay

b 177 S Dimensions

b I n n1 Ø r i n2 n3 n4 Ø f m

63...90 A 104 87.5 15 13.5 8.6 26.5 10 14 7 6.5 85.5

80...160 A 102 79 15 13.5 8.6 37/42 15 5.5 13 8.6 -

150...180 A 96.5 76.5 20 11.5 9 37/42 20 5 10 9 -

19) Independent mounting: Pole pitch i = 37 mm (80...180 A)

20) Independent mounting: Pole pitch i = 42 mm (80...180 A)

21) For units of same type (independent mounting I = 37 mm)

S022011

1689

000623S022012

Dimensions - Thermal overload relays

M-bw 17 S - 47 S thermal overload relays M-bw 77 S - 207 S thermal overload relays

M-bw-320 S thermal overload relays

M-b 721 Sw thermal overload relays

bw 77 S with cagedterminalbw 77 S with FASTONconnector

bw 177 S with cagedterminalbw 177 S with FASTONconnector

1690

S021004

Manual motor starters : System overview

✔✔✔✔✔ Internal mounting :electric trip devicealarm signaling switchauxiliary switch block

✔✔✔✔✔ Moldedenclosure

✔✔✔✔✔ Short-circuit limiter

✔✔✔✔✔ Auxiliary switch blockside mounting

LH and RH mounting permitted

✔✔✔✔✔ Three phase busbarto accept four units

incoming supply block

✔✔✔✔✔ Busbaradapter

Manual motor starters : System overview

✔✔✔✔✔ Auxiliary switch blockside mountingLH and RH mounting permitted

000623

1691

000623

Short-circuitlimiter MSU-L 20

Auxiliary switch blockfor LH or RH side mounting

1 N/O + 1 N/C MSU-A 1

2 N/O MSU-A 2

1 E/M + 1 N/C MSU-A 3

2 E/M MSU-A 5

1 c/o contact MSU-A 6

1 PE/N termination MSU-A 10

Undervoltage trip MSU-B 1 ... 3

or

open circuit release MSU-D 1 ... 3

Alarm contact MSU-A 8 ... 9

Emergency stop MSU-K 1buttonstay-put

as above,key release MSU-K 2

as above, MSU-K 3spring return

Position lock MSU-V 1

3 padlocks

Indicator light MSU-SL ...

N/PE termination MSU-N 1

options X

alternative options

S021005

MSU-K manual motor starters - Accessories overview

X X

X X

X X X X

X X X

Busbar adapterManual Surface Flush (without (with (without ormotor mounting mounting limiter) limiter) with limiter)starter enclosure enclosure

MSU-K ... MSU-C MSU-P MSU-G 05 MSU-G 06 MSU-LC 291

MSU-K manual motor starters - Accessories overview

1692

000623S021006

Manual motor startersMSU-KDevice selection tables andaccessories

Switch for on / off switching of electrical andelectromotive loadsThermal overload protectionPhase failure sensitive (differential tripping feature)Magnetic short-circuit tripIsolator functionMotor starterTrip-free featureForced opening of contactsHigh breaking capacityA range of accessories makes the starter suitablefor use as the main switch, in emergency-stopequipment and as an undervoltage monitorTrip test of alarm contactLockable

Recommendation : it is recommended that 4 A to 25 A units are spaced 10 mm apart.Technical details and dimensions pages 1697, 1700Selection criteria page 1695

Selection table Manual motor starters with thermal and magnetic trip devices

Approvals : Accessories only MSU-L 20 ... MSU-A 5 approved

Max. AC 3 ratings of Setting range Ir Tripping current Type P/N Weight3-phase motors 50...60 Hz Short-circuit kg220 V 380 V 415 V 440 V 500 V 660 V limiter240 V 400 V 690 V Irm

kW kW kW kW kW kW A A

- - - - - - 0.1 ... 0.16 1,9 MSU-K 0016 1 364 101 01 0.25- - - - - - 0.16 ... 0.25 3 MSU-K 0025 1 364 102 01 0.25- - - - - - 0.25 ... 0.40 4,8 MSU-K 0040 1 364 103 01 0.25- - - - - 0.37 0.40 ... 0.63 7,5 MSU-K 0063 1 364 104 01 0.25- - - - 0.37 0.75 0.63 ... 1 12 MSU-K 010 1 364 105 01 0.25- 0.37 - - 0.75 1 1 ... 1.6 19 MSU-K 016 1 364 106 01 0.25

0.37 0.75 1.1 1.1 1.1 1.5 1.6 ... 2.5 30 MSU-K 025 1 364 107 01 0.250.75 1.5 1.1 1.5 2 3 2.5 ... 4 48 MSU-K 040 1 364 108 01 0.251.1 2.2 2.2 2.2 3 4 4 ... 6.3 75 MSU-K 063 1 364 109 01 0.252.2 4 3 3 5.5 7.5 6.3 ... 10 120 MSU-K 10 1 364 110 01 0.254 7.5 7.5 7.5 10 11 10 ... 16 190 MSU-K 16 1 364 111 01 0.25

5.5 10 9 9 11 15 16 ... 20 240 MSU-K 20 1 364 112 01 0.255.5 11 11 11 15 18.5 20 ... 25 300 MSU-K 25 1 364 113 01 0.25

Accessories

Type P/N

Short-circuit limiter Iu = 32 A, Ve ... 415 V MSU-L 20 3 364 051 01

Electrical trip device Under- 110/120 V 50/60 Hz MSU-B 1 3 364 052 25(1 per manual motor voltage 220/240 V 50/60 Hz MSU-B 2 3 364 052 40controller) trip 380/440 V 50/60 Hz MSU-B 3 3 364 052 59

Other voltages on request

Open 110/120 V 50/60 Hz MSU-D 1 3 364 053 25circuit 220/240 V 50/60 Hz MSU-D 2 3 364 053 40trip 380/440 V 50/60 Hz MSU-D 3 3 364 053 59

Other voltages on request

Auxiliary switch blocks : side mounting 1 N/O + 1 N/C MSU-A 1 3 364 054 01side mounting 2 N/C MSU-A 2 3 364 054 02side mounting 1 E/M + 1 N/C MSU-A 3 3 364 054 03side mounting 2 E/M MSU-A 5 3 364 054 05side mounting 1 c/o contact for increased cont. reliability MSU-A 6 3 364 054 06internal fitting 1 N/O + 1 N/C MSU-A 7 3 364 054 07internal fitting 1 N/C alarm cont. (alarm signalling switch) MSU-A 8 3 364 054 08internal fitting 1 N/O alarm cont. (alarm signalling switch) MSU-A 9 3 364 054 09side mounting PE and N termination MSU-A 10 3 364 054 10

Characteristics

Notes

1693

000623S021007

AccessoriesDescription

Typical applications page 1701

Dimensions pages 1700-1701

Type P/N

Busbar adapter, Iu 32 A, Ve 660 V, 54 mm wide, for mounting a MSU-K manual motor starter(including accessories) on busbars with a cross section of 12 x 5 mm or 12 x 10 mm with a MSU-G 05 3 364 006 01busbar spacing of 40 mm.

Busbar adapter, Iu 32 A, Ve 660 V, 54 mm wide, for mounting a MSU-K manual motor starter MSU-G 06 3 364 007 01(including accessories) with Ie limiter, otherwise as above.

Busbar adapter, Iu 32 A, Ve 660 V, 54 mm wide, to accept MSU-K manual motor starter(including accessories) with or without Ie limiter MSU-L 20 or contactor, MSU-LC 291 3 364 027 01for 12, 15, 20 or 30 mm busbars, 5 mm thick, busbar spacing 60 mm.

Busbar adapter, Iu 32 A, Ve 660 V, 54 mm wide, for MSU-K manual motor starter and MSU-LC 292 3 364 028 01contactors up to 11 kW (2 mounting rails), otherwise as above.

3-phase busbar system (Ith = 80 A, Vi = 660 V)3-phase with 4 terminals for supply by means of incoming supply block MSU-G 4. MSU-G 03 3 364 008 01Expandable as required, provided the Ith allows it. Basic version for max. 4 MSU-K starters.For parallel connection of, e.g., 11 MSU-K, 4 MSU-G 03 are necessary.

Incoming supply block 80 A, Vi 660 V for connection of the supply lead when using MSU-G 4 3 364 056 01the 3-phase busbar system MSU-G 03

Set of links 3 pole (Contactor - Manual motor starter) MSU-VS 3 3 366 070 00

Protecting cap, 3 pole, for unused phase terminals on the 3-phase busbars MSU-DS S 3 364 057 01(packing unit : 10 each)

Busbar support for 3 copper busbars, 12 or 15 mm wide and 5 mm thick; MSU-ST 31 3 364 010 01the busbar spacing can be 40 or 50 mm, as required (dynamic short-circuit rating50 kA with 50 mm busbars and 500 mm support spacing).Packing unit : 1 set = 2 complete busbar supports including captive fixing screws.

Busbar support as above, but for 60 mm busbar spacing, copper busbars MSU-ST 32 3 364 029 0112...30/5 mm

MSU-B/-D...MSU-A

MSU-L 20

MSU-G 03

MSU-ST 31MSU-ST 32

MSU-G 4

MSU-G 05

MSU-A 1

Characteristics

Notes

1694

000623S021008

AccessoriesDescription

* Follow special mounting instructions when fitting into molded enclosure !

Dimensions page 1700

Degr. of prot. Type P/N

Molded enclosure Surface mounting type (RAL 7032) IP 41 MSU-C 1 3 364 058 01with ground protection Surface mounting type (RAL 7032) IP 55 MSU-CE 1 3 364 058 02

Flush mounting type (RAL 7032) IP 41 MSU-P 1 3 364 059 01

Assembly kit for IP 55 Enclosure MSU-C 1 MSU-E 1 3 364 060 01Enclosure MSU-P 1 MSU-E 2 3 364 060 02

Position lock for molded enclosure with 3 padlocks in the off positionInterlocking device for 3 padlocks with 8 mm shackle dia IP 55 MSU-V 1 3 364 015 01

Emergency stop button, stayput, red on yellow surface, IP 41 MSU-K 1 3 364 061 01resetting by pulling

* Emergency stop button, stayput, red on yellow surface,resetting with key MSU-K 2 3 364 062 01

Emergency stop button, spring return, red on yellow surface MSU-K 3 3 364 073 01

Operational voltage Color Type P/N

Indicator lights with fixed connection lead red MSU-SL-1 3 364 063 01and neon lamp 110 V .... 120 V AC/DC white MSU-SL-2 3 364 063 07

green MSU-SL-3 3 364 063 02

red MSU-SL-4 3 364 064 01220 V ... 240 V AC/DC white MSU-SL-5 3 364 064 07

green MSU-SL-6 3 364 064 02

red MSU-SL-7 3 364 065 01380 V ... 440 V AC/DC white MSU-SL-8 3 364 065 07

green MSU-SL-9 3 364 065 02

N or PE terminationfor fitting into MSU-C+P enclosures (1additional pc.) MSU-N 1 3 364 066 01

MSU-SL ...

MSU-V 1

MSU-C ...

MSU-P

MSU-N 1

MSU-K 1

Characteristics

Notes

1695

000623S021010

MSU-K manual motor starters

Short-circuit limiting

1) Icu = Rated maximum short-circuit breaking capacity

2) Ics = Rated service short-circuit breaking capacity

To increase the Icu/Ics, the MSU-K can be combined with the short-circuit limiter MSU-L20.

For this combination there are the following values for rated service short-circuit breaking capacity :

Rated 230 V 400 V...415 V

current In Icu Ics Icu Ics

A kA kA kA kA

< 2.5 65 65 65 65

< 6.3 65 65 50 50

< 25 50 50 50 50

o : up to the listed value of Icu or Ics, there is no fuse necessary.If the short-circuit current exceeds the (Ics), a fuse is necessary.

230 V 400 V 415 V 500 V 690 VSetting range Icu1) Ics2) max. Icu Ics max. Icu Ics max. Icu Ics max. Icu Ics max.

fuse fuse fuse fuse fuse

(gL/gG) (gL/gG) (gL/gG) (gL/gG) (gL/gG)A kA kA A kA kA A kA kA A kA kA A kA kA A

0.1...0.16 65 65 o 65 65 o 65 65 o 65 65 o 42 42 o

0.16...0.25 65 65 o 65 65 o 65 65 o 65 65 o 42 42 o

0.25...0.4 65 65 o 65 65 o 65 65 o 65 65 o 42 42 o

0.4...0.63 65 65 o 65 65 o 65 65 o 65 65 o 42 42 o

0.63...1 65 65 o 65 65 o 65 65 o 65 65 o 1 1 20

1...1.6 65 65 o 65 65 o 65 65 o 65 65 o 1 1 20

1.6...2.5 65 65 o 65 65 o 10 5 25 3 1.5 25 1 0.5 20

2.5...4 65 65 o 10 5 35 10 5 35 3 1.5 35 1 0.5 25

4...6.3 65 37.5 o 10 5 50 10 5 50 3 1.5 50 1 0.5 35

6.3...10 10 5 80 4 2 80 4 2 80 3 1.5 50 1 0.5 35

10...16 6 3 80 4 2 80 3.5 1.7 80 3 1.5 63 1 0.5 35

16...20 6 3 80 4 2 80 2.5 1.2 80 1.5 0.7 63 1 0.5 50

20...25 6 3 80 4 2 80 2.5 1.2 80 1.5 0.7 63 1 0.5 50

Rated short-circuit breaking capacity Icn in accordance with IEC 947-2Selection criteria

Notes

1696

000623S021009

Trip curves / Selection criteria

Typical tripping characteristics1 Three-phase trip curve2 Two-phase trip curve (phase failure sensitive)

(Single phase- or DC-operating : the contacts in series)

Type Conductor Number of Conductor cross section, mm2

type conductors 1 1,5 2 2,5 4 6 10 16 or 25

MSU-K solid 1 ✘ ✘ ✘ ✘ ✘ ✘ - -

(manual 2 ✘ ✘ ✘ ✘ ✘ ✘ - -

motor flexible with 1 ✘ ✘ ✘ ✘ ✘ - - -starter) wire end ferrule 2 ✘ ✘ ✘ ✘ ✘ - - -

MSU solid 1 ✘ ✘ ✘ ✘ ✘ ✘ ✘ ✘

(short 2 ✘ ✘ ✘ ✘ ✘ ✘ ✘ -circuit flexible with 1 ✘ ✘ ✘ ✘ ✘ ✘ ✘ -

limiter) wire end ferrule 2 ✘ ✘ ✘ ✘ ✘ ✘ ✘ ✘

MSU-A solid 1 ✘ ✘ ✘ ✘ - - - -(auxiliary 2 ✘ ✘ ✘ ✘ - - - -

switch) flexible with 1 ✘ ✘ ✘ ✘ - - - -

wire end ferrule 2 ✘ ✘ - - - - - -MSU solid 1 ✘ ✘ ✘ ✘ ✘ ✘ ✘ ✘

(incoming 2 ✘ ✘ ✘ ✘ ✘ ✘ ✘ -

supply flexible with 1 ✘ ✘ ✘ ✘ ✘ ✘ ✘ ✘ (16)block) wire end ferrule 2 ✘ ✘ ✘ ✘ ✘ ✘ - -

The "characteristic curve" of the thermal overcurrent trip device shows tripping for all setting ranges as a function of the multiple of the set current value, andrepresents the mean value of the scatter bands in the cold condition.

When switchgear is at operating temperature, the trip time of the thermal overcurrent trip device is reduced to approx. 25 % of the values shown.

Type Setting range mm2

MSU-K 0016 0.1...0.16 A

0.75

MSU-K 063 4...6.3 AMSU-K 10 6.3...10 A 1.0

MSU-K 16 10...16 A 1.5

MSU-K 20 16...20 A2.5

MSU-K 25 20...25 A

Protection of PVC insulated copper leadsfrom thermal overloading on short-circuit

Terminal capacities

x Current value

m s

ecse

cm

in

1697

000623S021011

Technical details - MSU-K manual motor starters

Specifications IEC 947-2, IEC 947-4-1; VDE 0660; VDE 0113 as a main switch + emergency stop switch in enclosure

Approvals DEMKO, SEMKO, SEV on request, UL, CSA

Climatic-proof Damp heat, constant, to DIN IEC 68 Part 2 Test 3, damp heat, cyclic,to DIN IEC 68 Part 2 Test 30

Degree of protection Starter incl. moulded cover IP 20 openMoulded enclosure IP 41/IP 55Moulded enclosure IP 41/IP 55

Shock resistance 30 g for 20 ms

Vibration resistance to German Railways standard BN 411 002

Ambient temperature range -5 ... + 60° C open-5 ... + 40° C enclosed

Temperature compensation -5 ... + 55° C to IEC 292

Mounting position inclined up to 90° C from the vertical

Thermal current Ith up to 25 A for manual motor starter MSU-Kup to 63 A for incoming supply blockup to 32 A for busbar adapterup to 63 A for 3-phase current busbar systemup to 32 A for short-circuit limiter

Rated operational current Ie up to 25 A, 660 V AC/220 V DC,for MSU-K to CSA and UL : 25 A at 600 V AC/220 V DC

Motor switching capacity 11 kW at 400 V/AC 3

Mechanical life 100,000 operations

Electrical life 100,000 operations on AC 3 duty

Max. switching frequency 40 operations/hr

Rated insulation voltage Vi 690 V in accordance with VDE 0660, IGr. C

Rated operational voltage Ve up to 690 V AC, (up to 600 V AC to CSA and UL) up to 220 V DC

Max. breaking capacity Icn according to IEC 157-1 (P-1) : o-t-co VDE 0660/T 101see table page 1695

Let through integral I2 t max. 50,000 A2 sLet through current 4.5 kA at Icn = 6 kA/3 ~ 415 VTotal break time 7.0 ms

Trip curve T II

Response value about 12 x max. set value of thermal trip deviceof electromagnetic trip device

Undervoltage trip Pick up : 0.85 to 1.1 Uc, drop out : 0.7 to 0.35 Uc, 2,2 VA, 1 W, voltage should be continuouslyapplied (100 % duty)

Open circuit shunt release Pick-up at 0.7 to 1.2 x Vc, 50 % duty, power consumption 3.4 VA, 1.6 W

Auxiliary switch :Thermal currrent I 6 ARated operational current Ie side AC 11 : 230 V, 3.5 A / 400 V, internal AC 11 : 230 V, 2 A / 400 V, 1A /

mounted : 2 A / 500 V, 1 A; fitting : 500 V, 0.5 ADC 11 : 60 V, 1.5 A / 110 V, DC 11 : 60 V, 0,7 A / 110 V,1 A / 220 V, 0.5 A 0.55 A / 220 V, 0.25 A

Min. switching capacity 4...30 V and 4...100 mA

Rated insulation voltage Vi 500 V

Rated operational voltage VS 500 V

Back-up fuse 6 A type gl.

Power dissipation 3 conducting paths, continuous current Iu c. 6 W

Terminal size of screws Main switches M 4 Auxiliary switches M 3,5

Recommended torque 1.8 Nm 1.2 Nm

Terminal capacities 0.75...6 mm2 solid wire 0.75...2.5 mm2 stranded wire0.75...4 mm2 stranded wire

1698

000623S021013

MSU-K manual motor starters / Specification

Description of equipment

Special featuresHigh breaking capacity

Short-circuit limiter

Temperature compensation

Integrable shunt releaseand alarm contacts

Operating safety in accordancewith VBG 4

Simple mounting

Convenient and rapid connection

Easy auxiliary switch mounting

Modular construction

AccessoriesProtective casing

Auxiliary switches for side mounting,on right and left hand side

Auxiliary switch for internal fitting

Three-phase busbarsfor Vu = 660 V, Iu = 80 A

MSU-K manual motor starters with thermal and magnetic tripping devices are 3-pole manual switchingdevices (power circuit breakers)- to switch electric and electrical loads on or off- to protect these loads from overload and short circuitThey comply with the requirements of VDE 0660, VDE 0113, IEC 292 and IEC157-1 in relation to- isolator characteristic- motor switch- trip-free mechanism- positive opening of contacts- high breaking capacity- phase failure sensitivity in accordance with VDE 0660, Part 104, IEC 292Additional components allow the following important functions to be obtained :- main switch through locking in the OFF position- emergency stop device through various mushroom-head push buttons- protection on power failure through low voltage tripping device- open-circuit trip shunt release- alarm signalling switch - alarm contact

MSU-K manual motor starters have a high breaking capacity up to 6.3 A : ∞ up to 10 A; 6 kA, up to25 A : 4 kA at 400 V. This is made possible by a modern design, by which very short break times areachieved. Because of this, the circuit breakers have become limiters. The advantages are :- Back-up fuses are only necessary at rated equipment currents > 2,5 A and 400 V.- The dynamic and thermal loading of electrical installation components at short-circuit is reduced.

By the use of the short-circuit current limiter, the short-circuit breaking capacity of the MSU circuitbreakers of ≥ 6.3 A-25 A rated current at 380/415 V is increased to 50 kA. Fuses can largely beeliminated.

To achieve high tripping accuracy over a large ambient temperature range, MSU-K manual motorstarters are temperature compensated from -5°C ... +55°C

Undervoltage or open-circuit tripping devices, as well as alarm contacts, can be integrated in theequipment. Contour and dimensions of the equipment remain unchanged.

The equipment cap covers the terminal screws. This meets the safety requirements of VDE 0106Part 100 and VBG 4.

The manual motor starter is easily clipped on to a mounting rail (DIN EN 50 022) by an integral snap-on mount.

Captive terminal screws supplied in the "open" position allow time-saving and simple connection :insert the wire, tighten screws, done. Time and effort for unscrewing of the terminal is eliminated andterminal parts can no longer go astray.

Auxiliary switches are necessary for signalling or for interlocking circuitry. ENTRELEC-SCHIELE hasselected modular construction to avoid mistakes during assembly. Simple adaptation to requirementsis possible and stocking reduced.

The equipment is designed such that its shape is identical with that of automatic circuit breakers.Because of this, it can easily be installed in flush-mounted distribution systems. When an auxiliaryswitch is attached, the manual motor starter has the same overall width as a 3-pole automatic circuitbreaker.

To ensure optimum protection against dust and water in all applications, the range includes threetypes of enclosures, of impact-resistant insulation material and of protection types IP 41 and IP 55.The protection level can be increased to IP 55 by an additional kit. The circuit breaker can be clippedinto all types of casing. The sizes of enclosures are such that even switchgear with an auxiliary switchattached to it can easily be fitted and the terminal compartment for cable connection is ample in size.

Five different auxiliary switch blocks can be supplied. After removing the front cover, the block canbe snapped in without tools.

Remove the front cover and snap in the auxiliary switch block.

Our three-phase busbars for 4 connections are suitable for parallel connection of any number ofmanual motor starters with auxiliary switch blocks fitted provided the Ith of 63 A is not exceeded. Thefirst busbar is used - in combination with the incoming supply block MSU-G 4 - for supplying thesystem and for parallel connection of the first manual motor starter. Manual motor starters can beconnected additionally to each additional busbar in parallel, as required, and without cutting the barto length. The incoming supply can also be connected at the center or on both sides. The gives goodload distribution.Typical applications page 1701.Additional covering is not necessary, because both switchgear and busbars are safe to touch (satisfyVDE 0106 Part 100) in the basic versions. Unused outlets have a shock protection cover.

1699

000623S021012

MSU-K manual motor starters / Specification

Incoming supply block

Short-circuit limiter Iu = 32 A

Busbar adapter

Shunt release

Open circuit shunt release

Mounting of the shunt release andalarm contact

Emergency stop button

Interlocking devices

Indicator light

Alarm contact

Problem-free supply to the busbar system is made possible with the incoming supply block. It is safeto touch (satisfies VDE 0106) in the basic version.

By attaching the short-circuit limiter to the manual motor starter, back-up fuses can be dispensed withfor all non-intrinsically safe equipment ≥ 2,5 A - 25 A at 400 V. The rated breaking capacity Icn (of thecombination of manual motor starter and short-circuit limiter) is increased as a result of heavy currentlimitation and short break time (see page 1695). With this, it is possible to use the switchgear combinationin the power system where the prospective short-circuit current exceeds the "normal" switching capacityof the manual motor starter. The short-circuit limiter can be used - taking into account the continuouscurrent Iu - as individual or group protection for several MSU-K ... manual motor starters.Typical applications page 1701.

Various busbar adapters are available.They allow manual motor starters MSU-K ... to be snapped onto busbar systems of 40 or 60 mm phasespacing. The manual motor starters are first snapped on to the adapter and attached to connectingleads - which lead to spring-loaded contacts - on the input side. When clipped on the busbars thecontact springs tap off voltage directly and the manual motor starters/adapter unit locks itself. Byoperating a latch, the adapter can be unlocked, allowing it to be changed easily.Important advantages are :- simple and space-saving assembly- convenient replacement of switchgear- problem-free parallel connection, even of switchgear with high rated currentTypical applications page 1701.

Undervoltage trip MSU..B for protection from hazardous re-starting of machines after power failure.

Open circuit shunt release MSU-D.. for control and interlocking purposes are inserted under theswitchgear cover.

After removing the cover, these can be clipped in with a "handle" and the connections on the knock-out of the cover are turned outwards. The above assembly procedure also applies to alarm contacts.

When manual motor starters are to be used as emergency stop devices, this can be done withemergency stop button sets- MSU-K 3 (spring return)- MSU-K 2 (stay put, released by key)- MSU-K 1 (stay put, released by pulling)Fixing is with 4 screws from the inside of the cover.

When used as a main switch, the manual motor starter must be lockable in the off position in accordancewith VDE 0113. This requirement can be fulfilled using the interlocking device MSU-V 1. It is fixedwith 4 screws from the inside of the casing (only with MSU-C and MSU-P) and is located such thatby-passing of the interlock - e.g. by removing the casing cover - is impossible.

For visual indication of the switch position (enclosed equipment), the indicator light MSU-SL can besupplied. After breaking out a knock-out on the casing cover, the light is pushed through from thefront and fastened with screws from the rear and is then electrically connected.

The alarm contact MSU-A has alarm signaling function. Ist N/O or N/C contact is actuated whenthermal or electromagnetic release - fault - takes place. It does not respond to manual actuation ofthe MSU-K.

1700

000623S021014

MSU-K manual motor starter :Circuit diagrams / dimensions

Dimensions

Manual motor starter MSU-K Manual motor starter MSU-K Mounting positionswith short-circuit limiter

Circuit diagrams

Manual motor starter Current limiter Undervoltage trip Open circuit trip Alarm contactMSU-K MSU-L20 MSU-B.. MSU-D.. MSU-A 8 (1 N/C)

MSU-A 9 (1 N/O)

Auxiliary switch blocksMSU-A 1 + (MSU-A 7) MSU-A 2 MSU-A3 MSU-A 5 MSU-A 6

a = 208

Molded enclosure, surface mounting types MSU-C 1, MSU-CE 1 Molded enclosure, flush mounting type MSU-P 1 cut-out 118 x 72 mm

Auxiliary switch

3-phase busbar MSU-G03 Incoming supply block MSU-G04

Mounting rail to

DIN EN 50 022

Mounting rail to

DIN EN 50 022up to 90°

up to 90°up to 90° up to 90°

1701

000623S021015

Dimensions / typical applications

Typical applications

Types of protection

Modular constructionmounting to busbar

8. Manual motor starter MSU-K ...9. Contactor DL ... 11 kW

10. Busbar support MSU-ST 32

*1. Copper busbars 12-30/5 mm2. Busbar adapter MSU-G 053. Manual motor starter MSU-K ...

or4. Busbar adapter MSU-G 065. Current limiter MSU-L 206. Manual motor starter MSU-K7. Busbar support MSU-ST 31

*1. Copper busbars 12-30/5 mm2. Busbar adapter MSU-LC 2913. Manual motor starter MSU-K ...

or4. Busbar adapter MSU-LC 2915. Current limiter MSU-L 206. Manual motor starter MSU-K ...

or7. Busbar support MSU-LC 292

Busbar supplyfor 4 MSU-K or more

1. 3-phase busbar MSU-G 032. Manual motor starter MSU-K ...3. Manual motor starter MSU-K ...4. Manual motor starter MSU-K ...

Supply via terminal block MSU-G 4

40 mm 60 mm

Busbar spacing :

DL = K range contactors DL 4 K ... DL 11 K, *200-447 A

Busbar adapter

MSU-G 05 MSU-G 06 MSU-LC 291 1 rail orMSU-LC 292 2 rail