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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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Long Life Interrupter In Circuit Breaker Robust Vacuum Extinguish Chamber

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ERFA Industries Group
Country/Region:china
Contact Person:MsLinda Dong
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China Long Life Interrupter In Circuit Breaker Robust Vacuum Extinguish Chamber wholesale
  • China Long Life Interrupter In Circuit Breaker Robust Vacuum Extinguish Chamber wholesale

Long Life Interrupter In Circuit Breaker Robust Vacuum Extinguish Chamber
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Place of Origin :China (Mainland)
Brand Name :ERFA
Certification :ISO9000
Model Number :ERFA-V12a
MOQ :1 unit
Price :Negotiated
Packaging Details :each piece with polly then 18pcs in a woodenbox with pallet
Delivery Time :10 days after payment
Payment Terms :T/T
Supply Ability :10000pcs per month
Rated current :630A 1250A
Rated short-circuit breaking current :20KA
Rated duration of short-circuit :4S
Rated peak withstand current :50KA
Rated operating sequence :O-0.3s-CO-180s-CO
Weight of movable parts :0.52 KG
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Specification

1 Rated current A 630 630 1250 1250
2 Circuit resistance at lowest rated contact force μΩ
≤25 ≤20
3 Rated short-circuit breaking current KA 20 25 20 25
4 Breaking operations of rated short circuit breaking current Times 30
5 Rated short-time withstand current KA 20 25 20 25
6 Rated duration of short-circuit S 4
7 Rated peak withstand current KA 50 63 50 63
8 Rated short-circuit making current KA 50 63 50 63
9 Rated breaking current of single capacitor bank A 630
10 Rated breaking current of back-back capacitor bank A 400

Mechanical data

1 Weight of movable parts Kg 0.52
2 Closing force due to bellow and atmosphere N 80±25
3 Force required to hold contacts open at full stroke N 150±40

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