R-MAG Vacuum Circuit Breaker with Magnetic Actuator ...€¦ · electronic controller and capacitors for energy storage, the R-MAG circuit ... 4 R-MAG magnetically actuated dead tank

R-MAG® magnetically actuated dead tank outdoor vacuum circuit breaker15.5 kV - 38 kV

Descriptive Bulletin

2 R-MAG magnetically actuated dead tank outdoor vacuum circuit breaker | Descriptive bulletin

Introduction

The R-MAG® is truly the next generation in medium voltage vacuum circuit breaker technology. ABB is the first to combine the unique benefits of vacuum interrupter technology with a magnetic actuator designed to exploit these capabilities. Using a flux-shifting device with integral permanent magnets, the R-MAG mechanism has only one moving part. With simple open and close coils, an electronic controller and capacitors for energy storage, the R-MAG circuit breaker mechanism is capable of 10,000 load operations. These are a few of the features that mark a departure from the conventional spring-operated mechanism, introducing new capabilities and benefits for a smarter distribution system.

ABB makes safety our first priority by employing magnetic actu-ators to eliminate maintenance on coils, motors, and mechani-cally charged springs.

R-MAG benefits include: − Simple, less frequent maintenance

− Rated for 10,000 full load operations (five times ANSI requirements)

− No maintenance required on magnetic actuator − Plug & play actuator circuitry − Vacuum interrupters rated for 30,000 full load operations

− Increased reliability − Magnetic actuator has only one moving part − No spring charging motors to replace − No trip/close coils to replace − Less moving parts leads to less maintenance

R-MAG increased performance − 2,000 operations between servicing vs 500 operations bet-

ween servicing - ANSI C37.06 requirements − 10,000 mechanical or load operations vs 2,000 no-load me-

chanical operations - ANSI C37.06 requirements − No maintenance required on magnetic actuator − Eliminates open/close coils in stored spring mechanism lubri-

cation requirements

The R-MAG has three main components: − Vacuum interrupter assembly − Operating mechanism

− Provides reliable operation even after extended periods of inactivity

− Electronic control board − Compatible with all forms of overcurrent, reclosing and

control functions

Descriptive bulletin | R-MAG magnetically actuated dead tank outdoor vacuum circuit breaker 3

Vacuum interrupters

Manufacturing vacuum interrupters since 1980, ABB has become a worldwide leader in vacuum interrupter technology.

− Rated for 30,000 mechanical or load operations − Up to 40 operations at maximum interrupting rating − One of the largest vacuum interrupter producers in the world − Environmentally friendly and maintenance-free for life − ABB vacuum interrupters are used in many products globally

Stems

Twist protection

Metal bellows

End cap

Bellows shield

Ceramic insulator

Main shield

Contacts

Stem

End plate

3

1

4

2

1 Vacuum interrupter family | 2 For over 25 years, ABB has been developing and manufacturing vacuum interrupters for medium voltage applications | 3 Construc-tion of a vacuum interrupter | 4 Sample of vacuum bottle curve - 15 kV - 25 kA breaker


Magnetic actuator

ABB has utilized magnetic actuators since 1997. One global team is dedicated to designing magnetic actuators for ABB products, including R-MAG breakers.

− 15 kV rated at 100,000 mechanical operations − 38 kV rated at 50,000 mechanical operations − One moving part − No maintenance required

Magnet life expectancyDevelopments in magnetic material technology allow the mag-netic actuator to be highly reliable over a long life time. Reduc-tion in magnetic flux density is less than 1% over 100 years at 248 °F (120 °C).

Connection tocranksfaft

Steel laminatehousing

Coils

Movable armaturePermanent magnets

A magnetic actuator has one moving part and requires no maintenance.

A spring charged mechanism has over 300 total parts (many moving parts) and requires periodic maintenance.


Magnetic flux density distribution representation during a magnetic actuator opening operation

All operating mechanism functions are integrated in the mag-netic actuator of the R-MAG circuit breaker. The actuator is a bistable magnet system, in which armature change-of-state is accomplished by the magnetic field of two electrically excited coils. The armature is held magnetically in the limit positions by the fields of two rare-earth permanent magnets. Switching ope-rations are achieved by excitation of one of the two coils until the retaining force of the permanent magnets is exceeded.

Even after complete failure of the auxiliary power, the energy stored in the capacitors will allow electrical operation for 200 seconds. In the event of complete loss of control power, the circuit breaker can be tripped manually.

The armature of the magnetic actuator is linked to an operating shaft connected via insulated push rods to each of the vacuum interrupters.

1 Magnetic latching in a closed position | 2 Magnetic latching plus current build up in one coil | 3 Armature reaching the open position | 4 Final open position

1 2 3 4


Low power consumption electronic control board, with flexible voltage range and alarms, control the R-MAG magnetic actuator.

Advantages of electronic controls − Flexibility of control voltages − Consistency of operation utilizing capacitor energy − Built-in trip & close coil features − Built-in breaker status indication − Coil protection − Ready and Not-Ready alarm

Flexibility of control voltages − Two control boards cover all control power requirements:

− Low voltage: 17 - 75 VDC or 21 - 52 VAC − High voltage: 77 - 280 VDC or 85 - 264 VAC

− Control board is independent of AC or DC − 1 control board covers 120 VAC, 125 VDC, 240 VAC

application − Ability to test a 125 VDC breaker with 120 VAC

− Low power requirements - 93 watt normal (41 watt power optional)

− Less than 1A at 125 VDC during capacitor charging (7 seconds)

− Plug & play removal & installation of control board assembly − Easy board conversion between low and high control

power requirements − Eliminates changing of trip and close coils, motors − Increased safety

− Wide range of input voltages − Minimizes damage from voltage spikes or higher charging

voltages

Consistency of operation utilizing capacitor energy − Smaller battery system - can be minimal since there is no

high instantaneous load on charging, closing or tripping − Voltage drop is not an issue when running control power

from battery system (smaller wiring can be used) − Operate multiple breakers simultaneously

− Sufficient energy to operate multiple breakers from station batteries simultaneously

− Constant energy source − Energy for closing and tripping is constant (regardless of

station battery voltage) thus closing and opening speed are consistent

Using capacitors for stored energy − The 0.1 Farad Electrolytic capacitors are designed to be ope-

rated in the temperature range of -40 °F to 185 °F (-40 °C to 85 °C)

− Extreme temperature option also available: -67 °F to 221 °F (-55 °C to 105 °C)

− Recommended capacitor replacement − 20 years for an average yearly temperature (in the outdoor

breaker enclosure) of less than 122 °F (50 °C) − 15 years for tropical climates

Built in breaker status indicationUnit-Ready and Not-Ready output contacts will provide an alarm under the following conditions:

− Drop off auxiliary supply voltage − Low voltage on capacitor

Capacitor vs number of operations − Open-close-open: 78 V − Close-open: 72.5 V − Cannot close breaker without sufficient energy to trip − Open: 49 V

Electronic control board

1 Electronic control board | 2 Capacitors | 3 Built-in breaker status indicator

21 3


Additional features

Manual emergency trip − Manual trip lever electronically interlocked to prevent closing

in close block position − 69 function

− When manually tripped, closing is electrically blocked − When tripped, handle returns to the close blocked position − Will not allow closing until lever is moved to normal opera-

ting position

Embedded Poles in the 38 kV − High dielectric strength due to solid material insulation − No external influences on the vacuum interrupter (shock

damage, dust, humidity) − Suitable for different climatic conditions worldwide − Compact and robust technology (modular structure) − Maintenance-free for life

Summary of R-MAG advantages − ABB vacuum interrupters

− World’s largest manufacturer of vacuum interrupters − Rated for 30,000 mechanical or load operations

− ABB magnetic actuator − Eliminates all maintenance on operating mechanism − World’s leader in magnetic actuation technology

− ABB electronic controller − Plug and play removal and installation − Independent of AC or DC power

− 5 YEAR FULL WARRANTY

Manual emergency trip Embedded poles


Drawings

6 4 2

5 3 1

FOUNDATION PLAN

5 3 1

R-MAG

31.38

8.00 X 12.00 OPENING WITHREMOVABLE PLATE. CUSTOMERTO DRILL TO SUIT.

42.75

17.00

16.00

PROVISION FOR.750 DIA. HDW.

33.00 DOORSWING

16.00

33.00 DOORSWING

R-MAG

PROVISIONS EACH ENDFOR LIFTING (2.00 DIA. HOLES)

47.25

13.00

4.000

1.500

4.000

1.500

42.75

DOOR TO CONTROLCOMPARTMENT

[1085.9]

[92]

[796.9]

[838.2]

[406.4]

[431.8]

[406.4][838.2]

[19]

[1200.2]

[330.2]

[920.8]

[1085.9][101.6]

[101.6]

[38.1]

[38.1]

[203.2] [304.8]

WINDOW FORCOUNTER ANDPOSITION IND.FAR SIDE

CONDUIT ENTRANCEPLATE

[76.2]

5. SEISMIC RATING = 0.5g PER IEEE STD 693

L C.G.C

[417.5]

3.000 INCREMENTSFOR ADJUSTMENT

[76.2]

18.00[457.2]

[796.9]31.38

105.81[2687.6]

[2230.4]87.81

8.500[215.9]

C.G.CL

36.00[914.4]

TYPTYPNOTES 2 & 3

SEE

NORMAL

CLOSE BLOCKED

TRIP

12A01507H01

TRIP HANDLEPOSITIONS MANUAL TRIP

SWING ANGLEKEEP CLEAR

MANUAL TRIP

70.625[1794.9]

MAX.

6.000 [152]

GROUND PAD

FARSIDE

16.44

30°

50°

78.125[1984.3]

MAX.

.875 DIA.[22.2]

36.25

MAN

UAL T

RIP

GROUNDPAD

3.62

3.000

4. MAX WEIGHT: 1700 LBS [771] KG.3. 15KV 1250A = 17.50 [444.50] STD CREEP, 28.33 [720] EXTRA CREEP2. 30.00 [762] CLEARENCE ABOVE ROOF REQUIRED TO REMOVE BUSHINGS.1. ALL DIMENSIONS IN [ ] BRACKETS ARE MILLIMETERS.NOTES:

SEE NOTE 2

15.563[395]

Outline drawing R-MAG 15 kV 1250 A


FOUNDATION PLAN

R-MAG

LC

2

15 3

6 4

CONDUITENTERENCE PLATE

Ø2.00 PROVISION EACHEND FOR LIFTING

MANUAL TRIP

AIR VENT USED ON15KV, 3000A AND

27KV 2000A

NOTES:1. ALL DIMENSIONS IN [ ] BRACKETS ARE MILLIMETERS.2. 30.00 [762] CLEARENCE REQUIRED TO REMOVE BUSHINGS.

4. WEIGHT: 2400 LBS [1088.6] KG. (15KV, 2000/3000A) 1900 LBS [860.9] KG. (27KV, 1200/2000A)

GROUNDPAD

FARSIDE

GROUNDPADS

SEE NOTE 2

8.00 [203] X 12.00 [305]OPENING WITH REMOVABLE PLATE.CUSTOMER TO DRILL TO SUIT

WINDOW FORCOUNTER ANDPOSITION IND.(FAR SIDE)

[673]26.500 DOOR SWING

21.50 DOOR SWING[546]

109.06 [2770]

18.00 [457]

3.00 [76] INCREMENTSFOR ADJUSTMENT

6.00 [152]

40.69 [1033]

91.06 [2313]

56.31 [1430]

9.602

[244]

9.602

[244]

51.308 [1303]

44.704 [1135]

22.16 [563]

�1.00 [�25]

FOR .750 [19] DIAMOUNTING BOLT

4.58 [116]

40.69 [1033]

SEE NOTES 2 & 3

4.000 [102]

4.00 [102]

1.50 [38]

1.500 [38]

1.75 [44] TYP

56.31 [1430]

16.44 [418] 9.13

[232]

16.000 [406]

16.000 [406]

60.202 [1529]

C.G.CLLC

KEEP CLEARSWING ANGLEMANUAL TRIPPOSITIONS

TRIP HANDLE

12A01507H01

30°

CLOSE BLOCKEDNORMAL

TRIP

50°

MANUAL TRIP

COMPARTMENTDOORS TO CONTROL

GROUNDPAD

[1692.3]MAX.

66.625

78.312[1989]

MAX.

3. 15KV 2000A = 27.50 [698.50] EXTRA CREEP IS STANDARD15KV 3000A = 18.30 [464.82] STD CREEP, EXTRA CREEP CONTACT SALES27KV 1250A = 27.50 [698.50] STD CREEP, 32.50 [825.50] EXTRA CREEP27KV 2000A = 27.50 [698.50] STD CREEP, EXTRA CREEP CONTACT SALES

5. SEISMIC RATING = 0.5g PER IEEE STD 693

Outline drawing R-MAG 15 kV 2000/3000/3700 A 27 kV 1250/2000 A


47.9

40.7

4X 1.0 24.0

8.6

20.3

8.0 X 12.0FLOOR

OPENING

4X 105°

43

R22DOOR SWING

R22DOOR SWING

R22DOOR SWING

R22DOOR SWING

85.8

3.0INCREMENTSFOR HEIGHT

ADJUSTMENT 41.3

35°

20.6 10.3

5°

12.3

MANUAL TRIPAND LOCKOUTHANDLE

GROUNDPAD

2.0 1.0

1.75

2X .56

52.3

34.4

109.1

1.9

3.5

16.0 16.0

123.6MAX

HEIGHT

REAR

POSITIONINDICATOR/OPERATIONSCOUNTER

5. WEIGHT: 1430 LBS [648.64 KG] WITHOUT ELECTRONICS, WIRING, OR CTs4. 27KV 2000A = 27.50 [698.50] STD CREEP, EXTRA CREEP CONTACT SALES3. 27KV 1250A = 27.50 [698.50] STD CREEP, 32.50 [825.50] EXTRA CREEP2. 30.00 [762] CLEARANCE ABOVE ROOF REQUIRED TO REMOVE BUSHINGS1. ALL DIMENSIONS IN [ ] BRACKETS ARE MILLIMETERS.NOTES:

Outline drawing R-MAG 27 kV 1250/2000 A (reduced footprint)


52.25 [1327.2]

63.19 [1604.9]

OUTLINE OFCABINET

USE BRACES WHEN LEGSARE FULLY EXTENDED

63.19 [1605.0]

81.50 [2070.1]

52.25[1327.2]

REAR OFCABINET

28.19 [715]DOOR SWING

17.25 [438] DOOR SWING

22.50 [571]23.00 [584]

25.59 [650.1]

4.13 [105.0]

4

30.00 [762.0]

4.44 [112.7]

34.44 [874.7]

6.24[158.4]


[203.2] [304.8]

4. SEISMIC RATING "HIGH" PER IEEE STD 693. (EXCEEDS ZONE 4)5. 38KV 1250A = 37.00 [939.80] STD CREEP

3. MIN. WEIGHT: 2400 LBS [1089] KG.2. 47.00 [1193.8] CLEARENCE ABOVE ROOF REQUIRED TO REMOVE BUSHINGS1. ALL DIMENSIONS IN [ ] BRACKETS ARE MILLIMETERS.NOTES:

MAN

UAL T

RIP

GROUND PAD

FOUNDATION PLAN

1 3 5

2 4 6

DOORS TO CONTROLCOMPARTMENT

3.000 VERTICAL HOLESPACING FOR ADJUSTMENT

4.000

1.500

1.500

[101.6]

[38.1]

[38.1]

.875 DIA.[22.2]

DOOR SWINGDOOR SWING

22.81[579.4]

[76.2]3.000

PROVISION EACH END FORLIFTING (2.00 DIA. HOLES)

PROVISION FOR.750 DIA. HDW.[19]

56.50 [1435.1]

10.89[276.5]

10.89[276.5]

20.13[511.2]

67.62 [1717.5]21.14[537]

TYP

131.63[3343.4]

*

*



52.25 [1327.2]

63.19 [1604.9]

OUTLINE OFCABINET

USE BRACES WHEN LEGSARE FULLY EXTENDED

132.81 [3373.4]

63.19 [1605.0]

67.62 [1717.5]21.28

[540.5]

81.50 [2070.1]

52.25[1327.2]

21.31[541.3]

10.94[277.9]

56.50 [1435.1]

10.94[277.9]

REAR OFCABINET

28.19 [715]DOOR SWING

17.25 [438] DOOR SWING

22.50 [571]23.00 [584]

25.59 [650.1]

4.13 [105.0]

4

30.00 [762.0]

4.44 [112.7]

34.44 [874.7]

6.24[158.4]


[203.2] [304.8]

MAN

UAL T

RIP

GROUND PAD

FOUNDATION PLAN

TYP

5 3 1

DOORS TO CONTROLCOMPARTMENT

4.000

1.500

1.500

[101.6]

[38.1]

[38.1]

.875 DIA.[22.2]

DOOR SWINGDOOR SWING

22.81[579.4]

[76.2]3.000

PROVISION EACH END FORLIFTING (2.00 DIA. HOLES)

PROVISION FOR.750 DIA. HDW.[19]

4. SEISMIC RATING "HIGH" PER IEEE STD 693. (EXCEEDS ZONE 4)5. 38KV 2000A = 37.00 [939.80] STD CREEP

3. MIN. WEIGHT: 2400 LBS [1089] KG.2. 47.00 [1193.8] CLEARENCE ABOVE ROOF REQUIRED TO REMOVE BUSHINGS.1. ALL DIMENSIONS IN [ ] BRACKETS ARE MILLIMETERS.NOTES:

3.000 VERTICAL HOLESPACING FOR ADJUSTMENT

*

*

1 3 5

2 4 6




Order aid

Digit # 1, 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Style Number MB 1 1 1 3 6 G G M H 5 K Z C N

Type

R-MAG *

Voltage

15.5 kV 1

27 kV 2

38 kV 3

Bil

110 kV 1

125 kV (27 kV only) 2

150 kV (27 kV only) 5

200 kV (38 kV only) 0

Continuous Current

1250A 1

2000A 2

3000A OA (15kV R-Mag breaker only) 4

3700A FA (15kV R-Mag breaker only) 5

600A 6

1600A 7

800A 8

Interrupting Rating

12.5 kA 1

16 kA 2

20 kA 3

25 kA 4

31.5 kA (38 kV only) 5

40 kA (38 kV only) 6

Auxiliary Switches

One 16 Deck Switch (8a + 8b) 6

One 20 Deck Switch (10a + 10b) 0

Two 16 Deck Switches (16a + 16b) D

Current Transformers 1-3-5

Ratio Accur Thermal rating

factor

1

Set

2

Sets

Notes: Also available in CSA and

50 HZ ratings

600/5 C100 TR 1.33 A B A B

1200/5 C200 TR 2.00 C D C D

1200/5 C200 TR 1.33 E F E F

1200/5 C400 TR 1.33 G H G H

1200/5 C200 TR 2.00 N/A I Two sets of CTs I

1200/5 C400

2000/5 C400 TR 1.33 J K J K


Digit # 1, 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Style Number MB 1 1 1 3 6 G G M H 5 K Z N S


Ratio Accur Thermal rating

factor

1

Set

2

Sets

Notes

1200/5 C400 TR 2.00 L M L M

1200/5 C400 TR 2.00 N/A O Two sets of CTs O

2000/5 C400

3000/5 C400 TR 1.33 P Q P Q

1200/5 C400 TR 1.50 R S R S

2000/5 C400 TR 2.00 T U T U

2000/5 C800 TR 2.00 V W V W

600/5 C200 TR 2.00 X N/A X

600/5 C400 TR 2.00 Y N/A Y

SPECIAL Z

NONE N


Same selection available as 1-3-5 G

R-MAG Enclosure

Mild steel M

Stainless steel S

Mild steel (27 kV reduced footprint) R

Stainless steel (27 kV reduced footprint) T

Control Voltage, R-Mag Actuator Control

Low Voltage Actuator Controller (20.4-52.8VAC or 16.8-75VDC) L

High Voltage Actuator Controller (85-264VAC or 77-280 VDC) H

Auxiliary Power

120VAC (must use high voltage actuator controller) 1

240VAC (must use high voltage actuator controller) 2

48VDC (must use low voltage actuator controller) 4

125VDC (must use high voltage actuator controller) 5

Circuit Protection

Molded case circuit breaker (MCB‘s) A

Knife Switch K

Pullout Fuse Block P

Standard (MCB for HTR and AUX, knife SW for control) S

Special Z

Control

Basic (no relay on breaker) B

Microprocesser M

Panel Configuration

Std ctrl switch, open/close ind lights, and Local/Remote toggle switch L

Panel with standard control switch and open/close indicating lights S

Special Z

No Panel N

Bushing Terminal

Clamp C

4 Hole NEMA Pad 4

Threaded Stud Only S

Special Z

* Not all combinations of options are available for all ratings. Please consult your ABB sales representative for more information.


Technical data

Units R-MAG

Rated Maximum Voltage kV 15.5 27 38

Continuous Current A 800/1250 800/1250/

2000

800/1250/2000/

30001/37002

1250 1250/

2000

1250/

2000

1250/

2000

1250/

2000

Operating temperature -50 °C and 70 °C per IEC 62271-1003

Voltage Range Factor K¶ 1 1 1 1 1 1 1 1

Short Circuit Interrupting Current (at Contact

Part) kA, RMS, Sym

kA 12.5 20 25 12.5 20 25 31.5 40

Frequency Hz 50/60 50/60 50/60 50/60 50/60 50/60 50/60 50/60

Power Frequency Withstand Dry 60 Hz for 1 Min kV 50 50 50 60 60 60 80 80

Power Frequency Withstand Wet 60 Hz for 10

Sec

kV 45 45 45 50 50 50 75 75

Lightning Impulse Withstand (BIL) kV 110 110 110 125/150 125/150 125/150 200 200

Chopped Wave Withstand (kV peak) kV 142 142 142 194∆ 194∆ 194∆ 258 -

Operating Duty (Standard Duty Cycle) cycles Exceeds ANSI standard O-0.3 sec-CO-3 min-CO

Maximum Interrupting Time cycles 3 3 3 3 3 3 3 3.5

Permissible Tripping Delay Y sec 2 2 2 2 2 2 2 2

Closing Time cycles 6 6 6 6 6 6 6 6

Reclosing Time sec 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.3

Short Circuit Interrupting Current

(at Contact Part) kA, RMS, Sym

kA 12.5 20 25 12.5 20 25 31.5 40

Close & Latch (Initial Current Loop)

kA, RMS, Asym

kA 20 32 40 20 32 40 50.4 -

Close & Latch (kA Peak) kA 32.5 52 65 32.5 52 65 81.9 104

Short Time Current (3 Sec) kA, RMS, Sym kA 12.5 20 25 12.5 20 25 31.5 40

Rated Duration of Short-Circuit @

Short-Time Current

sec 3 3 3 3 3 3 2 2

Transient Recovery Voltage (kV Peak) kV 29 29 29 51 51 51 71.7 71.7

Load Current Switching Capability A 600/800

1250

600/800/

1250/2000

600/800/1250/

2000/3000

1250 1250/

2000

1250/

2000

1250/

2000

1250/

2000

Wire Line Charging Current A 100 100 100 100 100 100 100 100

Isolated Cable Charging Current A 600 600 600 400 400 400 600 100

Isolated Capacitor Bank Switching Current (A

RMS)

A 600 600 600 600 600 600 600 -

Back-to-Back Shunt Capacitor Bank

Switching Current (A RMS)

A 600 600 600 600 600 600 600 -

Transient Overvoltage Factor C1* C1* C1* C1* -

Transient Inrush Current (kA Peak) Back-to-Back kA 20 20 20 20 20 20 20 -

Transient Inrush Frequency (Hz) Back-to-Back Hz 4240 4240 4240 4240 4240 4240 4240 -

Grounding of System and Capacitor Bank

System

Grounded or Ungrounded

Capacitor Bank Grounded or Ungrounded

Mechanical Life (No Load Operations) 10000 10000 10000 10000 10000 10000 10000 10000

Note: Please find specific R-MAG breaker vacuum bottle curves on the product instruction book.1 up to 3000 A standard breaker2 3700 A forced air cooled breaker3 above 40 °C breaker derated per ANSI C37.010

* Per C37.09a restrike category

¶ Interrupter life rated for 30,000 operations when interrupting loads areless than 1 kA. For interrupting loads greater than 1 kA, consult interrupter life curves on page 3.∆ For 125 kV BIL full-wave rating only


Options

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Notes


Contact us

1VA

L255

101-

DB

Feb

. 20

17 R

ev M

(rep

lace

s D

B38

-921

M)ABB Inc.

655 Century Point Lake Mary, FL 32746 Phone: +1 407-732-2000 ext. 2510 +1 800-929-7947 ext. 5Fax: +1 407-732-2359

www.abb.com/mediumvoltage

The information contained in this document is for general information purposes only. While ABB strives to keep the information up to date and correct, it makes no representations or warranties of any kind, express or implied, about the com-pleteness, accuracy, reliability, suitability or availability with respect to the infor-mation, products, services, or related graphics contained in the document for any purpose. Any reliance placed on such information is therefore strictly at your own risk. ABB reserves the right to discontinue any product or service at any time.

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Documents

R-MAG Vacuum Circuit Breaker with Magnetic Actuator ...€¦ · electronic controller and capacitors for energy storage, the R-MAG circuit ... 4 R-MAG magnetically actuated dead tank