Siemens RM-30U ? Refurbished

DescriptionThe Releasing Device Modules, Models RM-30U and RM-30RU are designed to operate and supervise solenoid valves or relays used for release of extinguishing systems and to operate and supervise relays used for door closing/opening or fan control. The RM-30U and RM-30RU are functionally the same except that the RM-30RU incorporates three (3) series resistors that are used to adjust the resistance of the circuit to compensate for varying numbers of solenoids.