Voltage fluctuation is a very common phenomena in any home. Safeguard your residence with L&T 63A C Curve Four Pole Trip Free MCB, BB40630C, Breaking Capacity: 10 kA. An MCB is an intelligent, automatic and most reliable product one should install. This L&T MCB comes with Four Pole. Each pole of this MCB has a capacity to detect and break the circuit at 10 kA. MCB can completely avoid any sorts of mishappening that might happen due to overload, overcurrent or short circuit. This product has a C type curve, which prevents the short circuit. An MCB can protect your appliance from any sort of electrical damage. With a current rating of 63 Amp, this device is the best for domestic usage. MCB is generally used to control, master and regulate the electrical power system. If you have an MCB placed at the right place for the right circuits then you need not worry about anything else.