Miniature circuit breaker (MCB) ensure electrical safety in homes offices and other buildings as well as for industrial applications by protecting electrical installations against overloads and short circuits.
Once a fault is detected, the miniature circuit breaker automatically switches off the electrical circuit to prevent damage to wires and to avoid the risk of fire.
Warranting reliability and safety for people and assets, MCBs are equipped with two tripping mechanisms: the delayed thermal tripping mechanism for overload protection and the magnetic tripping mechanism for short circuit protection.
According to different occasions, miniature circuit breakers have different curve requirements, such as households can choose B and C curves, industrial motors need relatively large starting current support, and product use can choose the D curve. For different loads of power, the current ampere can be selected from 6 to 125A.
How to choose TONGOU MCB?
Make a calculation of the circuit current required to protect each circuit according to the circuit system before installation, select the appropriate number of poles and current, and select the corresponding MCB from our product list, or if you have any questions about how to choose an MCB, send Your inquiry request or question consultation to our mailbox, our team will reply within 24 hours.