Rated Voltage: 12kV / 24kV

Insulation Level:

12kV: Power frequency withstand voltage 42kV; Lightning impulse withstand voltage 75kV (Breaking port: 48kV / 85kV)24kV: Power frequency withstand voltage 65kV; Lightning impulse withstand voltage 125kV

Applicable Standards: IEC 60298, GB 3906

Rated Current & Short Circuit Withstand
12kV Standard Type
Busbar Rated Current: 630A ~ 4000ACircuit Breaker Rated Current: 630A ~ 4000AContactor Rated Current: 400AShort-time Withstand Current (4s): 25kA, 31.5kA, 40kAPeak Withstand Current: 63kA, 80kA, 100kAEarthing Switch Withstand Capacity: 40kA/4sInternal Arc Withstand Level: 40kA/1s

24kV Standard Type
Rated Current: 630A, 1250A, 2500AShort-time Withstand Current (4s): 25kA, 31.5kAEarthing Switch Withstand Capacity: 31.5kA/4sInternal Arc Withstand Level: 31.5kA/1s

MVnex 550 Compact / MVnex 500 Ultra-compact
Rated Voltage: 12kVShort-time Withstand Current: ≤31.5kAPeak Withstand Current: ≤80kAMain Circuit Resistance: ≤100μΩ

Cabinet Dimension (Width × Depth × Height, mm)
12kV Standard Cabinet
Width: 650 / 800 / 1000Height: 2250Depth: 1400 / 1600

MVnex 550 Compact Type
Size: 550 (W) × 2250 (H) mmWeight: 400–700kgFloor space reduced by over 40% compared with traditional switchgear

MVnex 500 Ultra-compact Type
Cabinet width only 500mmWall-mounted installation available; front operation passage only 1mReduce substation construction area by 60%Maintenance-free throughout the whole life cycle