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Procure the VS1-12P/1600-31.5 embedded pole indoor VCB directly from a China factory. Serving as a robust solution for medium-voltage distribution, this 1600A and 31.5kA rated model is the ideal choice for main incoming feeders in industrial plants, large commercial buildings, data centers, and residential complex substations. Whether your project requires routine industrial power distribution or high-reliability supply for critical facilities, the VS1-12P/1600-31.5 delivers the robustness and longevity that end-users value. Our factory provides competitive wholesale pricing for bulk B2B orders.
Solid Insulation Technology: Unlike conventional VS1-12 breakers with separate insulated poles, the "P" series uses advanced APG (Automatic Pressure Gelation) epoxy casting to fully encapsulate the vacuum interrupter and primary conductors into a solid pole.
Environmental Endurance: Provides complete isolation from moisture, dust, and salt fog, ensuring no insulation degradation even in coastal or high-humidity environments. It also eliminates condensation flashover risks, making it ideal for underground substations and unheated switchgear rooms.
Thermal Efficiency: Engineered for lower main circuit resistance and reduced temperature rise, ensuring reliable operation at a 1600A continuous load.
Mechanism Reliability: The spring operating mechanism supports both manual and electrical charging, offering 20,000 mechanical operations and proven stability.
Switchgear Compatibility: Features a fully withdrawable (handcart) design that fits standard KYN28 center-mounted switchgear with all safety interlocks.
Model: VS1-12P/1600-31.5
Rated voltage: 12 kV
Rated current: 1600 A
Rated short-circuit breaking current: 31.5 kA
Rated peak withstand current: 80 kA
Rated short-time withstand current (4s): 31.5 kA
Rated insulation level (1min power frequency withstand): 42 kV
Rated insulation level (lightning impulse withstand): 75 kV
Mechanical life: 20,000 times
Mounting: Withdrawable (handcart) for KYN28 switchgear
Standards: IEC 62271-100, GB/T 1984
Submit an inquiry today to request the latest wholesale pricing, exact MOQ, and comprehensive technical datasheet directly from our factory.
