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Xian ERFA Switchgear under ERFA Industries Group



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Home ProductsVacuum Interrupter

Electric Vacuum Interrupter 1600A 1250A For VCB Vacuum Circuit Breaker

Electric Vacuum Interrupter 1600A 1250A For VCB Vacuum Circuit Breaker

Electric Vacuum Interrupter 1600A 1250A For VCB Vacuum Circuit Breaker

Product Details:

Place of Origin: China (Mainland)
Brand Name: ERFA
Certification: ISO9000
Model Number: ERFA-V12

Payment & Shipping Terms:

Minimum Order Quantity: 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
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Detailed Product Description
Rated Current: 1600A 1250A Rated Duration Of Short-circuit: 4S
Rated Peak Withstand Current: 60KA Weight Of Movable Parts: 1.4KG
Contacts Limit Erosion: 3MM Certificate: ISO9000
High Light:

vacuum fault interrupter


interrupter in circuit breaker


1 Rated current A 1600 1250
2 Circuit resistance at lowest rated contact force μΩ ≤20
3 Rated short-circuit breaking current KA 31.5
4 Breaking operations of rated short circuit breaking current Times 50
5 Rated short-time withstand current KA 31.5
6 Rated duration of short-circuit S 4
7 Rated peak withstand current KA 60
8 Rated short-circuit making current KA 60
9 Rated breaking current of single capacitor bank A 630
10 Rated breaking current of back-back capacitor bank A 400
11 Rated operating sequence O-0.3s-CO-180s-CO



Mechanical data

1 Weight of movable parts Kg 1.4
2 Closing force due to bellow and atmosphere N 140±50
3 Force required to hold contacts open at full stroke N 230±50




Mechanical requirements

1 Clearance between open contacts mm 11±1
2 Average opening speed(average of first 75% of contact gap) m/s 1.1±0.2
3 Average closing speed(average of last 30% of contact gap) m/s 0.6±0.2
4 Rated added external contact final force   3100±200
Added external contact force at contact touch point N 2200±150
5 Contact bouncing duration at closing operation ms ≤2
6 Closing and Opening non-simultaneity of three-phase contacts ms ≤2
7 Maximum Rebound during opening mm ≤2



1 Storage life Years 20
2 Mechanical endurance Times 10000
3 Contacts limit erosion Mm 3


Contact Details
ERFA Industries Group

Contact Person: Dong

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