Eberry China Indoor Vacuum Circuit Breaker VEF-12 DC 12kv 6kv 35kv 1250a 800a VCB 3 Extreme High Voltage Vacuum Circuit Breaker

2. VEF(R)-12 has stable and reliable performance, long electrical life, strong closing and breaking capacity, safe and convenient operation and maintenance.

3. The VEF(R)-12 vacuum source chamber is assembled in the insulating tube by our company's unique technology, so that the switch has the advantages of less maintenance, no pollution, no explosion hazard, low noise, and high insulation level. Suitable for frequent operation and other harsh conditions. working environment.

4. The self-developed integral modular spring operating mechanism has a complete five-proof interlocking function.

5. The unique and novel design of the combined electrical appliance makes the three-phase fuses placed flat on the upper side of the load switch, and the maintenance of the device is quite convenient.

6. The load switch and its combination can be used in conjunction with VS1, VD4, ZN63A and other products in KYN44, GZS1, KYN28 and other centralized isolating switch cabinets, providing designers with more optimal choices and configurations.

7. VEF(R)-12 handcart vacuum circuit breaker and its combination can be operated manually or electrically.

8. When the combination of electrical equipment is disconnected, a fuse hits the operating machine. There are two ways to operate the shunt release: 1- When the overload current is broken, the relay protection action commands the shunt release to trip the vacuum load switch; 2- When the short circuit is blown, the fuse blows, and then the mechanical release The buckle system completes the opening. Fuses are only used as backup short-circuit protection, which greatly reduces operating costs.

9. VEF(R)-12 vacuum load switch-fuse combination can protect the transformer most effectively.