TeSys LR - 3-pole motor protection relays. Motor protection relay, spring-loaded connection. Relay setting range 37-50 A, Max. size aM 63, Max. size BS88 100, Max. size gG 100, MTZ 01, use D40A-D65A. Temperature compensated with differential protection. With manual or automatic reset. Trip class 10 A. Screw terminals. Mounting directly under the contactor. Choice of manual or automatic reset on the front of the device. Red button for triggering the 'Test' function. Blue button for the 'Off' and 'Manual reset' functions. Yellow mechanical indicator appears when the relay is triggered. Auxiliary switch 1NO+1NC.