Double Pole Mcb Circuit Breaker Introduction:
It made of Nylon66 material, according to IEC60898-B.C.D and IEC60947-2 standard, high tempreture resistance.not easy to deform, simple and convenient to operate.It suitable for residential buildings, industrial, energy and other infrastructure etc.
double pole mcb circuit breaker features:
1. The rated short-circuit breaking capacity is high, and some rated current levels can reach more than 10KA.
2. Double wiring function, can easily connect standard bus and flexible wire.
3. Combined terminal block with finger protection, higher safety.
4. With energy storage mechanism operation, the contacts close quickly, which overcomes the adverse effects caused by the speed of manual operation of the handle, and improves the service life of the product.
5. A variety of accessories to choose from, and modular, flexible combination, user installation is very convenient.
6. The shell and some functional parts are made of imported high flame-retardant, high temperature resistant and impact resistant plastics.
7. The current limiting coefficient is high, and the performance-price ratio is superior.
The single pole, two pole, three pole of the air switch, also called 1P, 2P, 3P, refers to the number of open circuits.
The difference between unipolar and bipolar:
1. The control circuit is different: the unipolar circuit breaker only controls the live wire, and the bipolar circuit breaker controls both the live wire and the neutral wire at the same time.
2. The scope of application is different: Unipolar MCB is generally suitable for controlling 220V lighting circuit, and can only be used for lighting system branch circuit; double pole mcb circuit breaker is suitable for 220V socket circuit with leakage protection. Single-pole air switch is used as lighting and air-conditioning circuit control switch; double-pole air switch is used as main door isolation switch.
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