The L&T 125A 36kA 4 Pole DZ1-160D Thermal Magnetic Release MCCB is a reliable and easy to use release for magnetic closures. It is designed for use with a wide range of closures, including those made of metal, plastic, and paper. The L&T 50 Hz 240 V 4 Pole MCB is a general purpose electric circuit breaker designed to meet the requirements of IS/IEC 60947-2 and IEC 60947-2.