Honeywell Commercial MS4109F1010 Damper Actuator

The Honeywell MS4109F1010 Damper Actuator delivers precise 120 V AC control for HVAC dampers, combining reliability with compact, industrial-grade construction. This SPST damper actuator is direct-coupled, 2-position, fast-acting, and features spring-return operation for fail-safe performance in critical environments.

Operating at 120V AC, 60 Hz, it drives up to 23 W and holds at 7 W, delivering 0.25 A during travel and 0.13 A at rest while producing 80 in-lb of torque across a 95° sweep.

Designed for harsh HVAC environments, its aluminum body and NEMA 1/IP40 enclosure guard against dust and moisture, while a 1/2-inch shaft and 32-inch color-coded lead simplify installation and wiring.

For safety and compliance, this unit is approved to UL 60730, CUL C22.2, and C-Tick, with a 15-second timing profile for rapid damper positioning in fire and smoke control scenarios.

• Actuator Type: SPST, direct-coupled, 2-position, fast-acting
• Spring Return: Spring-return operation for fail-safe positioning
• Electrical Specs: 120 V AC, 60 Hz; 23 W driving / 7 W holding; 0.25 A / 0.13 A
• Torque & Travel: 80 in-lb torque; 95° rotation
• Enclosure & Materials: Aluminum body; NEMA 1 / IP40
• Connections & Shaft: 32-inch color-coded leads; 1/2-inch shaft
• Environment & Approvals: 0–130°F; UL 60730, CUL C22.2, C-Tick
• Timing: 15-second positioning