Erie Controls AT33A00T Valve Actuator

Erie Controls AT33A00T Valve Actuator is a compact electric valve actuator designed for precise modulation in heating and cooling systems. This 3-wire floating, proportional, rotary device delivers smooth, repeatable control for VM zone valves and similar HVAC applications.

Powered by 24 V AC (50/60 Hz) with 50 mA current draw and 1.2 VA, it features non-spring return operation in a rugged NEMA 1 enclosure with a plastic body for reliable indoor use. The synchronous motor delivers consistent actuation, while control signals cover 0-10 V DC, 0-5 V DC, 4-20 mA DC, and 5-10 V DC. An SPDT auxiliary switch provides simple end-switch monitoring. Operating range is 32-125°F, with CE approval for international compliance.

• Type: Electric, 3-Wire Floating, Proportional, Rotary
• Operation: Non-Spring Return
• Power & Voltage: 24 V AC, 50/60 Hz; 50 mA; 1.2 VA
• Enclosure/Body: NEMA 1; Plastic
• Motor: Synchronous
• Control Signals: 0-10 V DC, 0-5 V DC, 4-20 mA DC, 5-10 V DC
• Auxiliary Switch: Includes SPDT
• Applications: Heating/Cooling System, VM Zone Valve
• Operating Conditions: 32-125°F; CE approved