The actuator accepts an on/off signal from a single-pole, single-throw (SPST) controller. They are designed to operate reliably in smoke control systems requiring Underwriter's Laboratories Inc. UL555S ratings up to 350 F.
Honeywell Spring Return Actuator MS4209F1007 features:
• Integral spring return ensures level of return torque.
• Fifteen-second spring return timing.
• No special cycling required during long-term holding.
• No audible noise during holding.
• Patent pending design eliminates need for limit switches to reduce power consumption.
• Models available for 24, 120, and 230 Vac.
• Ninety-five degree angle of rotation for tight damper closure.
• Actuator holds rated torque at reduced power level.
• Die-cast aluminum housing. Housing design allows flush mounting to damper.
• Integral junction box with three conduit openings eliminates need for separate wiring box.
At the same time, we still can offer the items as below:
Honeywell Spring Return Actuator MS4120A1001
HoneywellNon-Spring Return Actuator ML6161A2025
Honeywell Non-Spring Return Actuator ML6161A2017
Honeywell Non-Spring Return Actuator ML6161A2009
Honeywell Spring Return Direct Coupled Actuator MS8120A1205
Honeywell Spring Return Direct Coupled Actuator MS8105A1030
Honeywell Spring Return Foot Mounted Actuator M9182A1011
Honeywell Spring Return Actuator MS4209F1007