Honeywell Commercial ML6174B2019 Damper Actuator

The Honeywell Commercial ML6174B2019 Damper Actuator is a 24V AC control solution for HVAC systems, designed as ON/OFF, SPDT, direct coupled, floating. With a non-spring return, it provides precise 90-degree damper movement for reliable air flow modulation.

Built with a NEMA 1 enclosure and a plenum-rated plastic body, this actuator withstands demanding environments. It delivers 70 in-lb of torque and fits 3/8 to 1/2 inch shafts, enabling broad damper compatibility, while operating at 50/60 Hz with a driving power of 2.4 VA. Ambient temperature range is 20 to 125°F.

Key specifications and safety approvals ensure dependable commercial performance, including UL 873 and CUL C22.2, screw-terminal connections for secure wiring, and a 90-second travel time for predictable damper positioning. Typical HVAC applications include air handling, ventilation control, and building automation.

• Type: ON/OFF, SPDT, Direct Coupled, Floating
• Operation: Non-Spring Return
• Electrical: 24V AC, 50/60 Hz, 2.4 VA
• Torque & Movement: 70 in-lb, 90° rotation
• Enclosure & Body: NEMA 1, plenum-rated plastic
• Mechanical: Shaft 3/8–1/2 inch
• Connections & Travel: Screw terminals, 90-second travel time
• Approvals: UL 873, CUL C22.2; Includes bag assembly