Siemens RAA30 ThermostatSiemens RAA30 Room Adjustable Thermostat with On Off Switch for heating only or cooling only. Two position control Switching voltage AC 24250 V, 6A 10 30C Adjustable Setpoint On Off Switch The RAA30 room thermostat is used in heating only or cooling only systems to maintain the selected room temperature where an adjustable setpoint and on off switch is required. Typical use: Schools Public buildings Storage rooms Maintenance rooms Functions The RAA30