Honeywell MS4609F1210 Fast-Acting Spring Return Actuator

Overview

The Honeywell MS4609F1210 is a fast-acting spring return actuator designed for fire and smoke dampers. It delivers high torque and rapid response to ensure dampers close quickly during emergencies. This actuator helps maintain building safety and complies with UL fire protection standards. It operates on 230V AC and includes two SPST auxiliary switches for position feedback or control logic. Its compact design and robust construction make it ideal for HVAC fire and smoke control systems.

Technical Specifications

• Model Number: MS4609F1210

• Torque Output: 80 in-lb (9 Nm)

• Power Supply: 230V AC

• Motor Type: DC motor with brushes

• Rotation Range: 95° ±3°, mechanically limited

• Action: Clockwise/Counterclockwise (CW/CCW) mounting

• Spring Return: Closes damper in 15–20 seconds

• Auxiliary Switches: 2 SPST, 5A resistive / 3A inductive @ 250V AC

• Noise Level: Driving: 80 dBA @ 1m; Holding: 20 dBA @ 1m

• Wiring Leads: 32" leads, 18 AWG, with 7/8" knockout holes

• Operating Temperature: 0°F to 130°F (–18°C to 55°C)

• Shipping/Storage Temperature: –40°F to 140°F (–40°C to 60°C)

• Humidity Range: 5% to 95% RH, non-condensing

• Mounting: Direct coupled to 1/2-inch round shaft

• Approvals: UL873, cULus, CE, C-TICK, NEMA 1 enclosure

• Life Expectancy: 30,000 cycles

• Application: Fire and smoke damper control in HVAC systems