These are compact power supplies for controlling spring-actuated brakes with rated voltages of 45 V DC/90 V DC/180 V DC. They are compatible with input voltages of 100 V AC, 200 V AC, or 400 V AC.The direct current required to operate spring-actuated brakes can be obtained simply by connecting/inputting. These are ultra-compact, slim power supplies that can be installed anywhere. The mountings are also movable, so the input/output direction can be set freely. Also, since the entire case is molded of resin, they can be used in adverse environments and atmospheres, such as dusty locations.