Specifications

Electrical fixed contact :
1.Material:T2 Red Copper
2.Rated current:630A
3.Application:Vacuum Circuit Breaker
4.Quality a

Electrical fixed contact for vacuum circuit-breaker :

Features:

1. Copper and aluminum combine products are new generations product.

2. The tensile and bending strength of it are outstanding, and bonding performance is also good.

3. There are no surface cracks after flattening and bending, they are the domestic new type of enery saving

    products currently.

4. Dynamic thermal stability, temperature rise and loop resistance are all compare favorably with the same

    levels of T2 copper, this is the idea products of the present electrical industry which can lower the costs.  

 

Experimental measurement and test:

The product modle	T2Copper contact arm( Φ 109x107mm 3150A)	Copper Aluminium Contact Arm( Φ 109x107mm 3150A )
One-way resistance	≤4 uΩ	≤5 uΩ
Circuit breaker loop resistance requirements	≤50 uΩ	≤50 uΩ(And solid seal into loop circuit breaker≤30 uΩ)
Temperature rise requirements 1.1 times of 1250A	≤75°	≤75°C(Actual measurement of temperature rise≤65°C)
Mechanical yield strength	340 N/mm ²	260 N/ mm ²
Dynamic thermal stability	Breaking 31.5 KA 4S Peak 80 KA	Breaking 31.5 KA 4S Peak 80 KA
Surface treatment	Silver plating	The material of original contact part is copper

 

Drawing:

 

Products show:

 

Certficate:

 

Company Exhibition :

 

 

About Payment:

MOQ:   1000 USD (by sea or by air) ,and mixed order is available,

               Unlimited by Express  (DHL,UPS,TNT...)

 

Payment :  a.100%  TT in advance .(Order less than 4000 USD)

                    b.30%  TT in advance,70% TT before delivery

                    c.70%  TT in advance,the balance against the copy of B/L at sight

                    d. Negotiable

Delivery time:    3-30  days  after received receipt of deposit.

 

Contact us: