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ERFA Industries Group

ERFA Industries Group Xian ERFA Switchgear under ERFA Industries Group

Manufacturer from China
Active Member
7 Years
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Home / Products / Vacuum Contactor Unit /

VS1 Vacuum Contactor Unit AC 50 Hz Electrical Vcb Circuit Breaker

Product Categories

Indoor Vacuum Circuit Breaker

 [8]

Outdoor Vacuum Circuit Breaker

 [7]

12KV Vacuum Circuit Breaker

 [8]

High Voltage Vacuum Contactor

 [6]

Vacuum Contactor Unit

 [6]

Electrical VCB Circuit Breaker

 [5]

Switchgear Circuit Breaker

 [6]

Excitation Regulator

 [7]

Current Transformer Clamp Type

 [12]

Hydraulic Rescue Equipment

 [8]

Oil Immersed Transformer

 [3]

Vacuum Interrupter

 [8]

Drilling Tools(NEW)

 [1]
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ERFA Industries Group
Country/Region:china
Contact Person:MsLinda Dong
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China VS1 Vacuum Contactor Unit AC 50 Hz Electrical Vcb Circuit Breaker wholesale
  • China VS1 Vacuum Contactor Unit AC 50 Hz Electrical Vcb Circuit Breaker wholesale

VS1 Vacuum Contactor Unit AC 50 Hz Electrical Vcb Circuit Breaker
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Place of Origin :China
Brand Name :ERFA
Model Number :ZN73
Certification :ISO9000, XIHARI
MOQ :1 unit
Price :Negotiated
Payment Terms :T/T, Western Union
Supply Ability :10000pcs per week
Delivery Time :10days after payment
Packaging Details :each piece in a wooden box with pallet
Rated Voltage :12KV
Arc-extinguishing Medium :Vacuum
Poles Number :3
Rated Frequency :50Hz
Insulated Cylinder :Embedded Poles
Installation :Open Frame
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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
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