Can we use MCB instead of MCCB?

However, unlike the MCB, it is used in places where adjustable tripping is required. Essentially used for high current applications, the MCCB features a manually operated switch for tripping the circuit….

Can you use an MCB as an isolator?

MCCB or MCB can not be used as an isolator. Isolator is used for isolating a electrical circuit manually whereas MCCB or MCB isolate an electrical circuit automatically when there is a fault in the circuit. MCCB or MCB is a safety device whereas isolator is not.

What is the difference between MCB and isolator?

Isolators are generally used in power system while on the other hand, MCB is the circuit breaker. Isolators are manually-operated device, and on the contrary, the circuit breaker is the automatically-operated device. The other devices like MCB and RCCB operate without any interruption.

Can I use MCB as main switch?

Circuit breakers may work more effective as safe switches, but they are not switches. They are not interchangeable. Therefore, using a circuit breaker as a switch is not recommended.

Can we use MCB as a main switch?

Yes, MCB can be used as a manual ON/OFF switch. Since the short circuit and overload protection is built-in the MCB and comes with no option to disable, the MCB could operate to open the circuit in case of fault downstream.

When would you use an isolator?

Isolator switches are used for opening an electrical circuit in the no-load condition. It is not proposed to be opened while current flows through the line. Generally, these are employed on circuit breaker both the ends thus the circuit breaker repair can be done easily without any risk.