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Home ProductsIndoor Vacuum Circuit Breaker

Three Phase Indoor Vacuum Circuit Breaker Electrical Vcb Circuit Breaker 630A

Three Phase Indoor Vacuum Circuit Breaker Electrical Vcb Circuit Breaker 630A

Three Phase Indoor Vacuum Circuit Breaker Electrical Vcb Circuit Breaker 630A

Product Details:

Place of Origin: China
Brand Name: ERFA
Certification: ISO9000, XIHARI
Model Number: ZN73

Payment & Shipping Terms:

Minimum Order Quantity: 1 unit
Price: Negotiated
Packaging Details: wooden box with pallet
Delivery Time: 10days after payment
Payment Terms: T/T, Western Union
Supply Ability: 1000/per month
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Detailed Product Description
Module No.: ZN73-12 Rated Voltage: 12KV
Poles Number: 3 Installation: Open Frame
Rated Frequency: 50Hz Rated Current: 630/1250/1600/2000/2500/3150A
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vcb vacuum circuit breaker

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high voltage vacuum circuit breaker

Vacuum Circuit Breakers (ZN73-12 (VS1))

ZN73 indoor AC high-voltage vacuum breaker is applicable to making and breaking load of various character and also for frequent operation in power systems of 3-phase, AC 50 Hz and with rated voltage up to 24kV. It can be used for protecting and controlling of electrical equipment in industrial plants, mines, power generation plants and substations.

Item Unit Data
Rated voltage kV 12 17.5 24
Rated insulation level 1min power frequency withstand voltage kV 42 50 65
Rated lighting impulse withstand voltage kV 75 95 125
Rated frequency Hz 50 50 50
Rated current A 630, 1250, 1600, 630, 1250, 1600, 630, 1250, 1600,
2000, 2500, 3150 2000, 2500, 3150
Rated short-time withstands current(RMS) kA 16, 20, 25, 31.5, 40 20, 25, 31.5 20, 25, 31.5
Rated active on-load breaking current kA 40, 50, 63, 80, 100 50, 63, 80 50, 63, 80
Rated withstands current (peak) kA 16, 20, 25, 31.5, 40 20, 25, 31.5 20, 25, 31.5
Rated short-time breaking current kA 40, 50, 63, 80, 100 50, 63, 80 50, 63, 80
Rated short-time continuous time s 4
Rated operation sequence   O-0.3s-CO-180s-CO
Mechanical life Times M2
Rated operation power supply voltage V AC220/DC220
Full breaking time Ms ≤70

Contact Details
ERFA Industries Group

Contact Person: Dong

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