Honeywell MS4120A1209/U Fail-Safe Spring Return Actuator
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
Also listed as: MS4120A1209U · MS4120A1209 U · MS4120A1209-U
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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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.
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.
Used in
Common applications for HoneywellHoneywell Products
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.
