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Since its inception, Suntree has started the prelude of building its own brand. After 10 years of experience, Suntree has won as many as 40 patents, including 10 invention patents. During this...

SL7 Polarity DC circuit breaker

SL7 Polarity DC circuit breaker

SL7 Non-polarity DC circuit breaker (New type)

SL7 Non-polarity DC circuit breaker (New type)

SCB2 Polarity DC Circuit Breaker

SCB2 Polarity DC Circuit Breaker

SM1-PV DC breaker Non-polarity

SM1-PV DC breaker Non-polarity

ABOUT Suntree

Suntree Electric Group Co., Ltd. is a leading global provider of solar energy solutions and manufacturer of solar accessories since 2007.Mainly focused on three sectors: "New Energy", "Smart Electrical" and "Power Grid"; Committed to providing a one-stop solution for solar system protection; Among six main brands of Suntree Group, Suntree, Shanghai Suntree and Nudy are most highlighted.

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What is a circuit breaker?

Generally speaking, a circuit breaker is a type of switch that protects us from dangerous electrical situations by automatically turning off the flow of electricity when an overload or other fault occurs.

Miniature Circuit Breaker Working Principle

There are two arrangement of operation of miniature circuit breaker. One due to thermal effect of over current and other due to electromagnetic effect of over current. The thermal operation of miniature circuit breaker is achieved with a bimetallic strip whenever continuous over current flows through MCB, the bimetallic strip is heated and deflects by bending. This deflection of bimetallic strip releases mechanical latch. As this mechanical latch is attached with operating mechanism, it causes to open the miniature circuit breaker contacts. But during short circuit condition, sudden rising of electric current, causes electromechanical displacement of plunger associated with tripping coil or solenoid of MCB. The plunger strikes the trip lever causing immediate release of latch mechanism consequently open the circuit breaker contacts. This was a simple explanation of miniature circuit breaker

Is sample available and free?

A:Sample is available , but the cost should be payed by you. The cost of sample will be refund after further order.