Tailored ACB types and associated accessories

Air Circuit BreakersHWT up to 6300A

The ACB is delivered factory assembled. Various data can be displayed on LCD:• Phase current (A) of I1, I2, I3 and their max. peak current• Line voltage (V) of V12, V23, V31 and their max. peak voltage

(or Phase voltage (V) of V1N, V2N, V3N and their peak voltage)• Demand active power max. (kW)• Power factor (cos Ø)• Electric energy (kWh)• Frequency (Hz)• Trip historyThe complete data can be displayed via the cummunication module as well.

The advantages for you:

• Lorperiu scillam in eratio consectet praessi.

• Lore vullum zzrit, commy nis nos adiat la feugiam etummodo do

• Dolobor si tis accumsandre exer iril inci blamcon ulpute modolor perostis amconulla ad del ut ulputem vero odigna amcor iriliqu

• ismodiamet, sismolore dui et illumsan ent utat, si.

The advantages for you Technical data:

• Lorperiu scillam in eratio consectet praessi.

• Lore vullum zzrit, commy nis nos adiat la feugiam etummodo do

• Dolobor si tis accumsandre exer iril inci blamcon ulpute modolor perostis amconulla ad del ut ulputem vero odigna amcor iriliqu

• ismodiamet, sismolore dui et illumsan ent utat, si.

Technical data

• Over-current release, LSI or LSIG or with LCD display, ammeter or multimeter

• For all ACBs: lcu = lcs = lcw (1s)

• Easy connection in the switchboards thanks to 2 connection types: rear connection or front connection to save space in depth

• Wide range of ACBs, from 800A to 6300A. High breaking capacity, from 50 to 120kA

• Available in draw-out or fixed type

• Double breaking contacts

• Wide range of accessories: coils, contacts, interlocks, motors…

A complete implementation system• Draw-out or fixed mounting type• Front connection to allow easy

wiring access

• Vertical or horizontal terminals for rear connection

1

Terminal blocksAre positioned to allow easy

wiring/access to:• Control circuit• Auxiliary switches• Position switches

2

Auxiliaries• Under-voltage trip device• Motorised control and

closing coil3

4

5

Standard over-current release with adjustment dial• Ground fault trip function• Neutral protection• Tripping display• Coil voltage display

6

Standard over-current release with LCD-“Ammeter”

plus additional features:• Tripping display for type of tripping• Pre-trip alarm• Phase rotation protection• Data exchange via Modbus RTU• Ammeter

7Enhanced over-current release with LCD-“Analyser”Same features as standard over-

current release with LCD, plus:• Undervoltage alarm• Contact temperature monitoring

8

Adjustable rated current• Adjustable from 0.4 to 1.0 • Rated current: 800A to 6300A• Integrated current transformer:

400A to 6300A

“Double break”• Double circuit current breaking• 50% reduced arc voltage• Contacts increase service life• Extremely fast interruption of

short circuit currents

Quicktips

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Air Circuit BreakersHWT up to 6300A

Increased accessibility from the front

• The double insulated design ensures that most accessories can be safely and easily installed

• Control, auxiliary and position switch terminals are mounted at the front on the ACB body for easy access

• The switchboard panel door can be kept closed in the CONNECTED, TEST, and ISOLATED positions

Implementation

• Easy connection in the switchboard thanks to 3 types of main circuit terminal arrangements:

- Front connection to save space in depth

- vertical and / or horizontal rear connections for busbars.• The draw-out type allows visible breaking on the “Isolated”

position (NFC14-100). The “Test” position allows to test the ACB

while having all the control circuits connected.

• The main circuit safety shutters automatically conceal the main circuit contacts on the draw-out cradle when the ACB is drawn out.

- The top and bottom shutters operate independently and can be

separately padlocked in the closed position.

- Up to three padlocks (with ø6 hasp) can be installed on each side

using padlocking unit. (Padlock not supplied)

Control and signalisation auxiliary switches

• Shunt trip devices are available for different voltage supplies. 2 versions are available: “Continuously rated shunt trip” and

“Instantaneously rated shunt trip”. This shunt trip can be itted together with an undervoltage trip to the same ACB

• The trip control device is available in two types: one provides an instantaneous trip to the ACB when the control voltage drops below

the opening voltage, the other provides a delayed trip to the ACB

when the control voltage remains below the opening voltage for at

least 500 ms.

• The auxiliary switches operate during the ACB ON/OFF operation. They are available in 4, 7 and 10 contacts versions.

• The position switch operates to give an indication of the breaker position: CONNECTED, TEST, ISOLATED, and INSERT.

Security and padlocking

• OFF padlock: Permits the ACB to be padlocked in the OFF position. Max. three padlocks with ø6 hasp can be itted. Padlocking is possible only when ON-OFF indicator shows OFF.

When the ACB is padlocked in the OFF position both manual and electrical closing become inoperative, but the charging of the

closing spring by manual or motor operation is still possible.

• An ON-OFF button cover prevents inadvertent or unauthorised op-

eration of the ON or OFF button. It can be locked with up to three

padlocks with ø6 hasp.

• Cable interlock for all the ACBs sizes:– mutual mechanical interlock for 2 or 3 ACBs

– horizontal interlock for ixed or draw-out type ACBs– vertical interlock only for draw-out type ACBs

• Front key lock:- cylinder lock

- castell lock.

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Main

Inco

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Air Circuit BreakersHWT up to 6300A

The range

• 3 sizes up to 6300A• 2 width up to 4000A• 3P and 4P with neutral on the left• Standard breaking capacity (S) 65, 85 and 120kA and high

level capacity (H) 80 and 100kA according to the size• One single mounting depth for fixed type• Same cut-out on front panel for all the sizes.

Technical characteristics

The following values are the same for all the sizes :Rated operational voltage Ue (50/60Hz) - 690VAC rated insulation voltage Ui (50/60Hz) - 1000VRated impulse withstand voltage Uimp - 12 kV

Standards :CEI 60947-2

EN 60947-2

HWT2 HWT3 HWT6

Series S H S H SB S

In 800/1250/ 1250/1600/ 2500/3200 1600/2000/ 4000 5000/6300

Rated current (A) 1600/2000 2000 2500/3200

In 800/1250/ 1250/1600/ 2500/3200 1600/2000/ 4000 5000/6300

Neutral pole amperes frame (A) 1600/2000 2000 2500/3200

Reference HWT208S/ HWT212H/ HWT325S/ HWT316H/ HWT440SB HWT650S/ HWT212S/ HWT216H/ HWT332S HWT320H/ HWT663S HWT216S/ HWT220H HWT325H/ HWT220S HWT332H Ics = Icu breaking capacity in case of short-circuit

(kA, symmetrical peak 690V 50 55 65 85 85 85

current value) 440V 65 80 85 100 100 120

400/415V 65 80 85 100 100 120

Icm rated short-circuit breaking current

(kA, asymmetrical peak 690V 105 121 143 187 187 187

current value) 440V 143 176 187 220 220 264

400/415V 143 176 187 220 220 264

Icw rated short time withstand current

(kA r.m.s) 1 second 65 80 85 100 100 120

3 seconds 50 55 65 75 85 85

No of operating cycles

Mechanical life (with maintenance) 30000 30000 20000 20000 15000 10000

Mechanical life (without maintenance) 15000 15000 10000 10000 8000 5000

Electrical life (with maintenance AC 460V) 12000 12000 7000 7000 3000 1000

Electrical life (without maintenance AC 690V) 10000 10000 5000 5000 2500 500

Time

Max. opening time (sec.) 0,03 0,03 0,03 0,03 0,03 0,03

Max. spring charging time (sec.) 10 10 10 10 10 10

Max. closing time (sec.) 0,08 0,08 0,08 0,08 0,08 0,08

Dimensions

Fixed type (mm) width 3P 360 360 466 466 - -

width 4P 445 445 586 586 - -

height 460 460 460 460 - -

depth 290 290 290 290 - -

Draw-out type (mm) width 3P 354 354 460 460 460 799

width 4P 439 439 580 580 580 1034

height 460 460 460 460 460 460

depth 345 345 345 345 345 380