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HVX12-31-12-E

The Schneider Electric HVX12-31-12E is an indoor-type Vacuum Circuit Breaker (VCB) designed for medium voltage power distribution systems. As part of the HVX series, it complies with IEC 62271-100 standards and is engineered for primary distribution networks up to 12 kV. The model features a 31.5 kA short-circuit breaking capacity with a rated current of 1250 A

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Key Specifications (Parameters) Standard: IEC 62271-100 Rated Voltage (Ur): 12 kV Rated Insulation Level: Power Frequency Withstand Voltage (1 min): 28 kV (rms) Lightning Impulse Withstand Voltage (Up): 75 kV (peak) Rated Current (Ir): 1250 A (The "12" in the current position denotes 1250A) Rated Short-Circuit Breaking Current (Isc): 31.5 kA (The "31" in the model denotes 31.5kA breaking capacity) Rated Short-Circuit Making Current: 80 kA (peak) (typical for 31.5kA class) Rated Short-Time Withstand Current (Icw): 31.5 kA / 3 s Rated Operating Sequence: O - 0.3s - CO - 15s - CO (Standard auto-reclosing sequence) Rated Cable Charging Breaking Current (Ic): 31.5 A or higher (per IEC for 31.5kA class) Mechanical Endurance: Class M2 (up to 10,000 operations) Electrical Endurance: Class E2 (for extended electrical endurance) Mounting Type: Truck-mounted (drawout) - Designated by "-E" suffix Number of Poles: 3 Operating Mechanism: Stored energy spring mechanism Interrupter: Vacuum interrupters (assembled pole design) Dimensions (Approx.): 210mm pole center distance, 650mm width, 622mm height