1MR7-B is a Honeywell rotary limit switch which provides an SPDT circuit contact output when the actuator shaft is in the appropriate position. It has a snap action, adjustable differential limit with an adjustable arm limiter. Due to its precise and reliable mechanism, it is ideal for precision limit control applications. The 1MR7-B is a robust switch which expertly manages many parameters including: the environments operational temperature range, flickering phenomena, contact bouncing and variation in contact edges. It is approved to UL, CSA and VDE standards and is made with high-quality components.