Static Contact Material Copper 1250A VCB Electrical Contact

• Copper and aluminum combined products are new generations' product.

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

• There are no surface cracks after flattening and bending, they are the domestic new type of energy-saving products currently.

• Dynamic thermal stability, temperature rise and loop resistance are all compared favorably with the same levels of T2 copper, this is the idea products of the present electrical industry which can lower the costs. 

The technical parameters of the form are for reference only.
Customized products can consult online customer service!

 

The product model	T2Copper 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 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

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