Honeywell Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off
The Honeywell MS4120A1209/U is a fail-safe actuator with spring return, designed for use with ball valves, butterfly valves, cage valves, dampers, and globe valves. It features a self-centering clamping shaft, 95°…
SKU 3G-OTH-67772
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Product Description
The Honeywell MS4120A1209/U is a fail-safe actuator with spring return, designed for use with ball valves, butterfly valves, cage valves, dampers, and globe valves. It features a self-centering clamping shaft, 95° stroke degree, and CW/CCW shaft rotation, operating on 100 to 250V AC input voltage with screw terminals. This on/off actuator includes an auxiliary switch and is compatible with building automation systems.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the Honeywell MS4120A1209/U actuator used for?
The Honeywell MS4120A1209/U is a fail-safe spring return actuator for on/off control of ball valves, butterfly valves, cage valves, dampers, and globe valves in building automation systems. It provides reliable positioning with a 95° stroke and is compatible with 100 to 250V AC power.
What are the specifications of the Honeywell MS4120A1209/U?
Key specs include 100 to 250V AC input voltage, 95° stroke degree, CW/CCW shaft rotation, self-centering clamping shaft, screw terminals, and an auxiliary switch. It is designed for building automation systems and operates as a spring return fail-safe actuator.
Where to buy the Honeywell MS4120A1209/U worldwide?
3G Electric supplies the Honeywell MS4120A1209/U actuator worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to install the Honeywell MS4120A1209/U actuator?
Mount the actuator on the valve or damper shaft using the self-centering clamping mechanism. Connect 100 to 250V AC power to the screw terminals per wiring diagram. Ensure spring return direction matches application. Test stroke and auxiliary switch before commissioning.
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3G Electric supplies Honeywell fail-safe actuators with spring return. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









