LS Electric Susol VH VCB for Nuclear Power Plants (4.76/15 kV)

LS Electric Susol VH vacuum circuit breakers and VCH cradles for nuclear power plants, 4.76/15 kV, 40/50 kA, 1200-3000 A, qualified for Class 1E service.

Key features

Developed for KEPCO nuclear plants to Class 1E quality, seismic and environmental qualification (KEPIC)
Development-tested to ANSI/IEEE C37.09 with in-house 50 kA vacuum interrupters
H-type draw-out for MCSG with auto-connection, 254 mm phase distance
Five interlock functions; window-CT bushings
Class (Non-1E / 1E), dummy, earthing truck and options suffixed at order, e.g. VH-15H50C30-M3C3T3SC1U0-N2

Specifications

Rated frequency	50/60 Hz
Rated breaking time	3 cycles
Operating duty	O-0.3s-CO-3min-CO
Control voltage	DC 125 V closing / trip
Auxiliary contacts	3a3b + 2 early-b
Opening time	<= 0.04 s
Mechanical endurance	5,000 operations
Phase distance	254 mm
Standard	ANSI/IEEE Std. C37.09
Source	LS Electric Susol VCB for Nuclear Power Plants catalog C05041-01 (2023-07), p. 12-14

VH-05H50C12		Part: Breaker \| Rated voltage: 4.76 kV \| Breaking current: 50 kA \| Rated current: 1200 A
VH-05H50C20		Part: Breaker \| Rated voltage: 4.76 kV \| Breaking current: 50 kA \| Rated current: 2000 A
VH-05H50C30		Part: Breaker \| Rated voltage: 4.76 kV \| Breaking current: 50 kA \| Rated current: 3000 A
VH-15H40C12		Part: Breaker \| Rated voltage: 15 kV \| Breaking current: 40 kA \| Rated current: 1200 A
VH-15H40C20		Part: Breaker \| Rated voltage: 15 kV \| Breaking current: 40 kA \| Rated current: 2000 A
VH-15H40C30		Part: Breaker \| Rated voltage: 15 kV \| Breaking current: 40 kA \| Rated current: 3000 A
VH-15H50C12		Part: Breaker \| Rated voltage: 15 kV \| Breaking current: 50 kA \| Rated current: 1200 A
VH-15H50C20		Part: Breaker \| Rated voltage: 15 kV \| Breaking current: 50 kA \| Rated current: 2000 A
VH-15H50C30		Part: Breaker \| Rated voltage: 15 kV \| Breaking current: 50 kA \| Rated current: 3000 A
VCH-05H50C12		Part: Cradle \| Rated voltage: 4.76 kV \| Breaking current: 50 kA \| Rated current: 1200 A
VCH-05H50C20		Part: Cradle \| Rated voltage: 4.76 kV \| Breaking current: 50 kA \| Rated current: 2000 A
VCH-05H50C30		Part: Cradle \| Rated voltage: 4.76 kV \| Breaking current: 50 kA \| Rated current: 3000 A
VCH-15H40C12		Part: Cradle \| Rated voltage: 15 kV \| Breaking current: 40 kA \| Rated current: 1200 A
VCH-15H40C20		Part: Cradle \| Rated voltage: 15 kV \| Breaking current: 40 kA \| Rated current: 2000 A
VCH-15H40C30		Part: Cradle \| Rated voltage: 15 kV \| Breaking current: 40 kA \| Rated current: 3000 A
VCH-15H50C12		Part: Cradle \| Rated voltage: 15 kV \| Breaking current: 50 kA \| Rated current: 1200 A
VCH-15H50C20		Part: Cradle \| Rated voltage: 15 kV \| Breaking current: 50 kA \| Rated current: 2000 A
VCH-15H50C30		Part: Cradle \| Rated voltage: 15 kV \| Breaking current: 50 kA \| Rated current: 3000 A

Vacuum Circuit BreakersLS Electric

18 product codes available in this family

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LS Electric Susol VH VCB for Nuclear Power Plants (4.76/15 kV)

Brand LS Electric·Vacuum Circuit Breakers

Available part numbers (18)

VH-05H50C12, VH-05H50C20, VH-05H50C30, VH-15H40C12, VH-15H40C20, VH-15H40C30, VH-15H50C12, VH-15H50C20, VH-15H50C30, VCH-05H50C12 + 8 more — see full table ↓

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LS Electric Susol VH VCB for Nuclear Power Plants (4.76/15 kV)