800 Amps Plastic Case Circuit Breaker (MCCB)

Plastic-case circuit breakers are also known as device circuit breakers, all parts are sealed in a plastic shell, auxiliary contacts, undervoltage release and shunt release, etc., are modular. Because the structure is very compact, the plastic-case circuit breaker can not be repaired. Most of them use manual operation, large capacity can choose electric closing. Due to the application of electronic overcurrent release, plastic-case circuit breakers can also be divided into class A and Class B. Class B has good three-stage protection characteristics, but due to price factors, the market share of class A products using thermal magnetic release is higher. Plastic-case circuit breaker is the contact, interrupter, release device and operating mechanism are installed in a plastic shell, generally do not consider maintenance, suitable for the branch protection switch, over current release device has two kinds of thermal magnetic and electronic, general thermomagnetic plastic-case circuit breaker is a non-selective circuit breaker, only overload long delay and short circuit instantaneous two protection methods. Electronic plastic-case circuit breaker has four protection functions: overload long delay, short delay, short instantaneous and ground fault. Some of the new products of electronic mould-case circuit breakers also have regional selective interlocking function. Most of the moulded case circuit breakers are manually operated, and some have motor operating mechanisms.
 

Specifications

Condition and Installation

FAQ
1. What is the pollution level?
The pollution level is level 3

2. Suitable for what work environment?
The altitude of the installation site is below 2000m, and the ambient medium temperature is not higher than +40 ° C and not lower than 5 ° C, and the 24-hour average value is not more than 35 ° C

3.Is there any test report of the product?
Yes, all our products have qualified test reports

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