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VD4/Z-12.12.40

The ABB VD4/Z-12.12.40 is a vacuum circuit breaker (VCB) designed for medium voltage (MV) applications, specifically in electrical distribution systems. It is part of the ABB VD4 series, offering reliable protection and control for medium voltage networks. The VD4 circuit breakers are known for their high performance, compact design, and long operational life, making them ideal for use in industrial installations, substations, and utility networks.

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Parameters: Model Number: ABB VD4/Z-12.12.40 Rated Voltage: 12 kV (for medium voltage networks) Rated Current: 630 A (standard current rating for most applications) Rated Short-Circuit Breaking Capacity (Isc): 12.5 kA at 12 kV (designed to interrupt high fault currents) Rated Making Capacity (Icm): 50 kA at 12 kV (withstand the stresses of a fault current) Frequency: 50/60 Hz Number of Poles: 3P (three-pole design for three-phase systems) Arc Quenching Medium: Vacuum (vacuum interrupter for high reliability and low maintenance) Mounting Type: Fixed or withdrawable, suitable for integration in switchgear assemblies and panel mounting. Insulation Type: Air insulation for compact and efficient design. Protection Class: IP20 (standard for indoor applications; external kits are available for outdoor use). Mechanical Life: 30,000 operations (significantly longer life compared to traditional air circuit breakers). Weight: Approx. 120-200 kg, depending on configuration and accessories. Dimensions (H x W x D): Approx. 1000 x 600 x 500 mm (varies with installation configuration). Rated Voltage for Interruption: 12 kV Control Voltage: 24 V DC (for external control and monitoring systems). Auxiliary Contacts (Optional): Available for fault signaling, remote monitoring, and integration with automation systems.