| Materials: | Copper |
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| Contact Mode: | Fixed Contact |
| Certification: | ISO |
| Material: | Copper |
| Application: | for Switchgear Cabinet |
| Plating: | Silver Plating |
| Samples: |
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| Customization: |
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630A Fixed Contact Finger Contact Male Contact for VCB 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 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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