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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: LIYOND
  • Model Number: LYB103
  • Rated current: 1250A
  • Surface treatment: Silver-plating

Packaging & Delivery

Packaging Details Standard export wooden case or carton as customer's requirements
Delivery Time Shipped in 3 days after payment


Product Description

 Copper male contact finger contact fixed contact for vacuum circuit breaker


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 modleT2Copper contact arm( Φ 50x158mm 1250A) Copper Aluminium Contact Arm(Φ50×158mm 1250A)  
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 strength340 N/mm ²260 N/ mm ²
Dynamic thermal stabilityBreaking 31.5 KA 4S Peak 80 KA  Breaking 31.5 KA 4S Peak 80 KA
Surface treatmentSilver platingThe material of original contact part is copper







Other fixed contacts and contact arm:




Installation information:


Packaging & Shipping



About us

Yueqing Liyond Electric Co., Ltd. who located in Yueqing city Zhejiang province China,which is praised as the capital of electric applicance. We are engaged in developing ,producting, trading and servicing electrical products for more than 15 years.


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