Siemens Building Technology SSD81U Actuator 318423-701 and small compressors typically found

and small compressors typically found in HVACR equipment

The integrated key lock assembly effectively prevents unauthorized setpoint adjustments and thermostat tampering by employees or guests

or burnt pins at the molex connector due to poor contact tension

OEM-matched components for proper fit and function

Siemens Building Technology SSD81U Actuator 318423-701 and small compressors typically foundThe Siemens SSD81U Actuator is a 24V 3 position floating actuator engineered for precise control of Pressure Independent Control Valves (PICV). This non spring return (NSR) electromotoric actuator high torque performance, delivering 56 lbs (250 N) of nominal force to ensure accurate valve positioning in rigorous HVAC applications. Designed for seamless integration with 1 2 inch to 1 1 4 inch valves, it utilizes a direct coupled installation that