About this product

Lauritz Knudsen Type MN 12L thermal overload relays are the trip class 30 variant of the MN 12 frame, CT operated and separately mounted, intended for motors with longer starting times such as high-inertia fan, centrifuge and crusher loads where a standard trip class 10 relay would nuisance trip. Ambient-temperature compensated up to 55 deg C with built-in single-phasing protection and manual/auto reset. Conforms to IS/IEC 60947-4-1 and IEC 60947-4-1.