We Promise

1. Your inquiry will be replied within 12 hours
2. We offer you professional service in fluent English
3. Keep the mass production as the sample in high quaity
4. Freight forwarder: faster, safer and convenient
5. Quality: We have Quality management system each process

Returns

Situation 1 For no quality problem, there is no returns or refund. If there is any problem not caused by us, we are pleasure to fix it for the buyer. And the buyer is responsible for paying shipping back to us.

Situation 2 For any quality problem caused by us, We provide refund for returns made within 10 days of the delivery date. Or we fix it or make new ones for the buyer as request. Used items will not be refunded. If you wish to return an order.

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.

FAQ

— Is Sample Available And Free?

Sample Is Available , But The Cost Should Be Payed By You. The Cost Of Sample Will Be Refund After Further Order.

— What Cerficated Do You Have?

We Have CE , RoHS , CB , TUV, ISO9001…

— Do You Have A Money Back Guarantee?

We Usually Transport By Express For Samll Order And By Sea Or By Air For Bulk Order.