Cut Sheet

V4-T3-46 Volume 4—Circuit Protection CA08100005E—May 2015 www.eaton.com
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3.1
Power Breakers, Contactors and Fuses
Power Circuit Breakers
ANSI Standard Ratings—VCP-W Vacuum Circuit Breaker Types Rated on Symmetrical Current Rating Basis—
Generator Breakers (to ANSI C37.013)
1
Notes
1
Applicable ANSI Standards C37.04-1999, C37.06-2000 (including both K >1 and K =1 ratings), C37.09-1999 and C37.013 (including C37.013a-2007).
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See Consulting Application Guide for further information.
Circuit Breaker Type
Description 50 VCP-WG50 50 VCP-WG63 50 VCP-WG75 150 VCP-WG50 150 VCP-WG63 150 VCP-WG75
Identification
Nominal voltage class kV 4.16 4.16 4.16 13.8 13.8 13.8
Nominal three-phase MVA class — — — — — —
Rated Values
Voltage
Maximum voltage E kV rms 4.76 4.76 4.76 15.0 15.0 15.0
Voltage range factor K
2
1.00 1.00 1.00 1.00 1.00 1.00
Insulation Level
Withstand test voltage
Power frequency (1 min.) kV rms 19 19 19 36 36 36
Impulse kV peak 60 60 60 95 95 95
Current
Continuous current at 60 Hz amperes 1200 1200 1200 1200 1200 1200
2000 2000 2000 2000 2000 2000
3000 3000 3000 3000 3000 3000
4000 4000 4000 4000 4000 4000
Short-circuit current (at rated max. kV) kA rms 50 63 75 50 63 75
Interrupting time cycles
1200A 333333
2000A 333333
3000A 333333
4000A 555555
Permissible tripping delay Y seconds
1200A 1 and 3 1 and 3 1 and 3 1 and 3 1 and 3 1 and 3
2000A 1 and 3 1 and 3 1 and 3 1 and 3 1 and 3 1 and 3
3000A 1 and 3 1 and 3 1 and 3 1 and 3 1 and 3 1 and 3
4000A 111111
Maximum voltage divided by K E/K kV rms
2
4.76 4.76 4.76 15.0 15.0 15.0
Current Values
Maximum symmetrical interrupting capability
Short-time current K x 1 kA rms
2
50 63 75 50 63 75
Closing and latching capability kA peak 137 173 206 137 173 206
Closing and latching momentary capability 82 103 123 82 103 123
Weight Lbs (kg)
1200A 525 (238) 525 (238) 926 (419) 525 (238) 525 (238) 926 (419)
2000A 530 (241) 530 (241) 936 (424) 530 (241) 530 (241) 936 (424)
3000A 550 (250) 550 (250) 946 (429) 550 (250) 550 (250) 946 (429)
4000A 956 (433) 956 (433) 956 (433) 956 (433) 956 (433) 956 (433)