Hi-ox240f is the two-way room speed governor. If the elevator descends with excessive speed, the descending brake will be used to support the general descending safety gear, enable the safety gear, and stop the car, playing the role of descending over-speed protection. If the elevator ascends with excessive speed, the over-speed switch can be turned off to cut off the power and stop the car, playing the role of ascending over-speed protection. Rated speed: less than or equal to 2.5m/s Wire rope diameter (mm):6, 6.3, 8 Sheave diameter (mm):240 Tension force: more than or equal to 1000n Super switch voltage grade: ac220v It can be used with magnetic rope brake of hiox-250