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HVX12-25-31E

The Schneider Electric HVX12-25-31E is a robust, 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 12kV.

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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: 75 kV (peak) Rated Current (Ir): 3150 A (The "31" in the model denotes 3150A rated current) Rated Short-Circuit Breaking Current (Isc): 25 kA (The "25" in the model denotes 25kA breaking capacity) Rated Short-Circuit Making Current: 63 kA (peak) Rated Short-Time Withstand Current (Icw): 25 kA / 3 sec Rated Operating Sequence: O - 0.3s - CO - 15s - CO (Standard auto-reclosing sequence) Rated Breaking Capacity: Cable charging current breaking: 25 A Line charging current breaking: 10 A Mechanical Endurance: Class M2 (up to 10,000 operations) Electrical Endurance: Class E2 (for extended electrical endurance) Operating Mechanism: Stored energy spring mechanism (motor charged standard) Number of Poles: 3 Interrupter: Vacuum interrupters with embedded pole technology Cooling: Natural cooling typically sufficient, but verify ventilation requirements