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HVX12-25-40-E275

The Schneider Electric HVX12-25-40-E275 is a medium-voltage indoor vacuum circuit breaker from the HVX series, designed for reliable performance in medium-voltage power distribution systems.

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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): 4000 A (The "40" in the current position denotes 4000A) Rated Frequency (fr): 50/60 Hz Rated Short-Circuit Breaking Current (Isc): 25 kA Rated Short-Circuit Making Current: 63 kA (peak) Rated Short-Time Withstand Current (Icw): 25 kA / 3 s Rated Operating Sequence: O - 0.3s - CO - 15s - CO (Standard auto-reclosing sequence) Rated Cable Charging Breaking Current (Ic): 25 A Mechanical Endurance: Class M2 (up to 10,000 operations) Electrical Endurance: Class E2 (for extended electrical endurance) Capacitor Bank Switching: Class C1 Mounting Type: Truck-mounted (drawout) - Designated by "-E" suffix Pole Center Distance: 275 mm (required for 4000A rating) Control Voltage (Designation "275"): Typically 220V DC / 240V AC (50/60 Hz) with specific auxiliary contact configuration Operating Mechanism: Stored energy spring mechanism (motor charged standard) Number of Poles: 3 Interrupter: Vacuum interrupters with enhanced heat dissipation design Cooling: Forced air cooling or dedicated ventilation system REQUIRED for 4000A continuous operation Primary Connections: Heavy-duty copper conductors designed for high current