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Honeywell MS4120F1204/U Fire & Smoke Rated Actuator - Fire & Smoke Rated Actuators
HoneywellFire & Smoke Rated Actuators

Honeywell MS4120F1204/U Fire & Smoke Rated Actuator

The HONEYWELL MS4120F1204/U is a fire & smoke rated actuator designed for ball valves, butterfly valves, cage valves, dampers, and globe valves. It operates as an on/off, spring return unit with a 95° stroke and…

SKU 3G-OTH-67054

Also listed as: MS4120F1204U · MS4120F1204 U · MS4120F1204-U

Brand
Honeywell
Item
MS4120F1204/U Fire & Smoke Rated Actuator
Category
Fire & Smoke Rated Actuators
Available to Order
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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

Technical Specifications

Honeywell
Manufacturer Part Number
MS4120F1204/U
Type
On/Off, Spring Return
Power Rating
35W
Input Voltage
120V AC
Stroke Degree
95°
Shaft Rotation
CW/CCW
Auxiliary Switch Included
Yes
Electrical Connection Type
Hardwired

Technical Documents

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Honeywell Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HONEYWELL MS4120F1204/U is a fire & smoke rated actuator designed for ball valves, butterfly valves, cage valves, dampers, and globe valves. It operates as an on/off, spring return unit with a 95° stroke and CW/CCW shaft rotation, powered by 120V AC at 35W. This hardwired actuator includes an auxiliary switch.

Frequently Asked Questions

What is the Honeywell MS4120F1204/U actuator used for?

The Honeywell MS4120F1204/U is a fire & smoke rated actuator used for on/off, spring return control of ball valves, butterfly valves, cage valves, dampers, and globe valves in HVAC and industrial safety systems.

What are the specifications of the Honeywell MS4120F1204/U?

The Honeywell MS4120F1204/U operates at 120V AC, 35W, with a 95° stroke and CW/CCW shaft rotation. It includes an auxiliary switch and is hardwired. It is designed for fire & smoke rated applications on valves and dampers.

Where to buy the Honeywell MS4120F1204/U worldwide?

You can source the Honeywell MS4120F1204/U through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations for this fire & smoke rated actuator.

How to install the Honeywell MS4120F1204/U actuator?

Install the Honeywell MS4120F1204/U by hardwiring the 120V AC supply, ensuring the shaft rotation (CW/CCW) matches the valve or damper stroke. Mount securely, connect the auxiliary switch as needed, and test spring return function per manufacturer guidelines.

Used in

Common applications for Honeywell
Commercial kitchen and inflight-catering steam boilers — RM7890 / RM7895 flame relays with UV detection
Food-processing ramp-and-dwell ovens — DBC2000E / DBC2100E controllers
Hotel and hospital boiler plants — VR8205 combination gas controls
Petrochemical tank-farm heating — V4xxx gas-valve bodies with ML7420 actuators
Retrofit swap-outs from legacy Fireye / Satronic — Honeywell replacement kits

Honeywell Products

3G Electric supplies Honeywell fire & smoke rated actuators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
This non-spring return actuator is designed for operating dampers and valves in HVAC systems. It features a 90° stroke with CW/CCW rotation, 35 in-lb torque, and floating point/on/off control. The aluminum hub shaft and screw terminals facilitate installation, and the included auxiliary switch provides end-of-travel indication. Suitable for building automation and air-handling applications
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This non-spring return actuator is designed for operating dampers and valves in HVAC systems. It features a 90° stroke with CW/CCW rotation, 35 in-lb torque, and floating point/on/off control. The aluminum hub shaft and screw terminals facilitate installation, and the included auxiliary switch provides end-of-travel indication. Suitable for building automation and air-handling applications
On/off fail-safe spring return actuator with self-centering shaft for 95° stroke rotation (CW/CCW). Operates on 100 to 250V AC input and includes an auxiliary switch with screw terminals. IP54 rated and plenum rated for use in air-handling spaces. Suitable for on/off control of dampers and valves such as ball, butterfly, cage, and globe valves
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On/off fail-safe spring return actuator with self-centering shaft for 95° stroke rotation (CW/CCW). Operates on 100 to 250V AC input and includes an auxiliary switch with screw terminals. IP54 rated and plenum rated for use in air-handling spaces. Suitable for on/off control of dampers and valves such as ball, butterfly, cage, and globe valves
This Honeywell fail-safe actuator with spring return is designed for use with ball valves, butterfly valves, cage valves, dampers, and globe valves. It operates on 24V AC input, provides a 95° stroke with CW/CCW rotation, and features a self-centering clamping shaft and screw terminal electrical connections. The actuator uses floating point or proportional control and does not include an auxiliary switch
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This Honeywell fail-safe actuator with spring return is designed for use with ball valves, butterfly valves, cage valves, dampers, and globe valves. It operates on 24V AC input, provides a 95° stroke with CW/CCW rotation, and features a self-centering clamping shaft and screw terminal electrical connections. The actuator uses floating point or proportional control and does not include an auxiliary switch
Floating point/proportional actuator with spring return for fail-safe operation. Features self-centering clamping shaft, 95° stroke, and CW/CCW rotation. Operates on 24V AC input with screw terminal connections. Suitable for controlling valves and dampers in HVAC and industrial systems
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Floating point/proportional actuator with spring return for fail-safe operation. Features self-centering clamping shaft, 95° stroke, and CW/CCW rotation. Operates on 24V AC input with screw terminal connections. Suitable for controlling valves and dampers in HVAC and industrial systems

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On/off spring return actuator for fire and smoke control applications. Rated 35W at 120V AC, with 95° stroke and reversible shaft rotation (CW/CCW). Hardwired connection, no auxiliary switch. Suitable for operating ball valves, butterfly valves, cage valves, dampers, and globe valves in HVAC and industrial safety systems
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On/off spring return actuator for fire and smoke control applications. Rated 35W at 120V AC, with 95° stroke and reversible shaft rotation (CW/CCW). Hardwired connection, no auxiliary switch. Suitable for operating ball valves, butterfly valves, cage valves, dampers, and globe valves in HVAC and industrial safety systems
On/Off spring return actuator for fire and smoke dampers in building automation systems. Provides 80 in-lb torque at 24V AC, 95° stroke with CW/CCW rotation. Hardwired connection, NEMA 1 / IP54 enclosure. No auxiliary switch
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On/Off spring return actuator for fire and smoke dampers in building automation systems. Provides 80 in-lb torque at 24V AC, 95° stroke with CW/CCW rotation. Hardwired connection, NEMA 1 / IP54 enclosure. No auxiliary switch
This Honeywell actuator is designed for fire and smoke dampers in HVAC systems. It operates on 120V AC with on/off, spring return control, providing 80 in-lb torque and a 95° stroke. The hardwired connection and NEMA 1 / IP40 enclosure suit building automation integration. No auxiliary switch included
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This Honeywell actuator is designed for fire and smoke dampers in HVAC systems. It operates on 120V AC with on/off, spring return control, providing 80 in-lb torque and a 95° stroke. The hardwired connection and NEMA 1 / IP40 enclosure suit building automation integration. No auxiliary switch included
This Honeywell fire and smoke rated damper actuator provides on/off, spring return operation for HVAC dampers in building automation systems. It delivers 175 in-lb torque with a 95° stroke and CW/CCW shaft rotation, operating on 24V AC input. The hardwired unit is rated NEMA 2 / IP54 and does not include an auxiliary switch
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This Honeywell fire and smoke rated damper actuator provides on/off, spring return operation for HVAC dampers in building automation systems. It delivers 175 in-lb torque with a 95° stroke and CW/CCW shaft rotation, operating on 24V AC input. The hardwired unit is rated NEMA 2 / IP54 and does not include an auxiliary switch
On/off spring return actuator for fire and smoke dampers in HVAC systems. 120V AC, 18W, 30 in-lb torque, 95° stroke, CW/CCW rotation. Hardwired, NEMA 1 / IP40 enclosure. Compatible with building automation systems
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On/off spring return actuator for fire and smoke dampers in HVAC systems. 120V AC, 18W, 30 in-lb torque, 95° stroke, CW/CCW rotation. Hardwired, NEMA 1 / IP40 enclosure. Compatible with building automation systems
On/off, spring return actuator for fire and smoke dampers in HVAC systems. Delivers 175 in-lb torque, 95° stroke, CW/CCW rotation. 24V AC, hardwired, NEMA 2/IP54. Includes auxiliary switch, compatible with building automation systems
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On/off, spring return actuator for fire and smoke dampers in HVAC systems. Delivers 175 in-lb torque, 95° stroke, CW/CCW rotation. 24V AC, hardwired, NEMA 2/IP54. Includes auxiliary switch, compatible with building automation systems
This Honeywell actuator is designed for fire and smoke damper applications in HVAC systems. It provides on/off control with spring return, delivering 30 in-lb torque at 24V AC. The hardwired unit features a 95° stroke with CW/CCW shaft rotation and is housed in a NEMA 1 / IP40 enclosure. It is compatible with building automation systems and does not include an auxiliary switch
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This Honeywell actuator is designed for fire and smoke damper applications in HVAC systems. It provides on/off control with spring return, delivering 30 in-lb torque at 24V AC. The hardwired unit features a 95° stroke with CW/CCW shaft rotation and is housed in a NEMA 1 / IP40 enclosure. It is compatible with building automation systems and does not include an auxiliary switch
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On/off spring return actuator for fire and smoke dampers in HVAC systems. Operates on 120V AC with 18W running power, 95 +/-3° stroke, and CW/CCW shaft rotation. Includes auxiliary switch, 1/2" round shaft, and hardwired connection with IP40 protection