We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

Honeywell Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off - Fail-Safe Actuators with Spring Return
HoneywellFail-Safe Actuators with Spring Return

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

Brand
Honeywell
Item
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off
Category
Fail-Safe Actuators with Spring Return
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Honeywell
Manufacturer Part Number
MS4120A1209/U
Type
On/Off, Spring Return
Shaft Type
Self-Centering Clamping
Input Voltage
100 to 250V AC
Stroke Degree
95°
Shaft Rotation
CW/CCW
Auxiliary Switch Included
Yes
Electrical Connection Type
Screw Terminals
For Use With Building Automation Systems
Building Automation System Compatible
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

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.

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 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off, Spring Return (MPN MS4110A1200/U). Key specifications — Manufacturer Part Number: MS4110A1200/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 100 to 250V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Honeywell
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off, Spring Return (MPN MS4110A1200/U). Key specifications — Manufacturer Part Number: MS4110A1200/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 100 to 250V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, Floating Point/Proportional (MPN MS7510A2206/U). Key specifications — Manufacturer Part Number: MS7510A2206/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC/DC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Honeywell
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, Floating Point/Proportional (MPN MS7510A2206/U). Key specifications — Manufacturer Part Number: MS7510A2206/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC/DC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off, Spring Return (MPN MS4105A1030/U). Key specifications — Manufacturer Part Number: MS4105A1030/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 100 to 250V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Honeywell
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off, Spring Return (MPN MS4105A1030/U). Key specifications — Manufacturer Part Number: MS4105A1030/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 100 to 250V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, Floating Point/Proportional (MPN MS7520H2208/U). Key specifications — Manufacturer Part Number: MS7520H2208/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Honeywell
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, Floating Point/Proportional (MPN MS7520H2208/U). Key specifications — Manufacturer Part Number: MS7520H2208/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Actuator: Final Control Elements/Globe Valves, On/Off, Spring Return, 44 in-lb, 24V AC (MPN MS8105A1130/U). Key specifications — Manufacturer Part Number: MS8105A1130/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Honeywell
Actuator: Final Control Elements/Globe Valves, On/Off, Spring Return, 44 in-lb, 24V AC (MPN MS8105A1130/U). Key specifications — Manufacturer Part Number: MS8105A1130/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off, Spring Return, IP54 (MPN MS4103A1130/U). Key specifications — Manufacturer Part Number: MS4103A1130/U; Shaft Type: Self-Centering; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Plenum Rating: Plenum Rated; Input Voltage: 100 to 250V AC; Brand: HONEYWELL; Electrical Connection Type: Screw Terminals.
Honeywell
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off, Spring Return, IP54 (MPN MS4103A1130/U). Key specifications — Manufacturer Part Number: MS4103A1130/U; Shaft Type: Self-Centering; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Plenum Rating: Plenum Rated; Input Voltage: 100 to 250V AC; Brand: HONEYWELL; Electrical Connection Type: Screw Terminals.

More from Honeywell

View all Honeywell parts
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off, Spring Return (MPN MS4120A1001/U). Key specifications — Manufacturer Part Number: MS4120A1001/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 100 to 250V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Honeywell
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, On/Off, Spring Return (MPN MS4120A1001/U). Key specifications — Manufacturer Part Number: MS4120A1001/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 100 to 250V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, Floating Point/Proportional (MPN MS7505A2030/U). Key specifications — Manufacturer Part Number: MS7505A2030/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Output Signal: 0 to 10V DC.
Honeywell
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, Floating Point/Proportional (MPN MS7505A2030/U). Key specifications — Manufacturer Part Number: MS7505A2030/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Output Signal: 0 to 10V DC.
Modutrol Actuator: Dampers, 60 lb-in, 2 to 10V DC, NEMA 3, 2 Auxiliary Switches (MPN M7285C1009/U). Key specifications — Manufacturer Part Number: M7285C1009/U; Input Voltage: 2 to 10V DC; Brand: HONEYWELL; Auxiliary Switch Included: Yes.
Honeywell
Modutrol Actuator: Dampers, 60 lb-in, 2 to 10V DC, NEMA 3, 2 Auxiliary Switches (MPN M7285C1009/U). Key specifications — Manufacturer Part Number: M7285C1009/U; Input Voltage: 2 to 10V DC; Brand: HONEYWELL; Auxiliary Switch Included: Yes.
Rotary Actuator: Dampers/Valves, On/Off, Spring Return, 60 in-lb, 24V AC, Quick Connect Terminals (MPN M4185B1058/U). Key specifications — Manufacturer Part Number: M4185B1058/U; Stroke Degree: 160°; Input Voltage: 24V AC; Brand: HONEYWELL; Electrical Connection Type: Quick Connect Terminals; Auxiliary Switch Included: Yes.
Honeywell
Rotary Actuator: Dampers/Valves, On/Off, Spring Return, 60 in-lb, 24V AC, Quick Connect Terminals (MPN M4185B1058/U). Key specifications — Manufacturer Part Number: M4185B1058/U; Stroke Degree: 160°; Input Voltage: 24V AC; Brand: HONEYWELL; Electrical Connection Type: Quick Connect Terminals; Auxiliary Switch Included: Yes.
Rotary Actuator: Dampers/Valves, On/Off, Spring Return, 60 in-lb, 24V AC, Hardwired, NEMA 3 / IP54 (MPN M8185D1006/U). Key specifications — Manufacturer Part Number: M8185D1006/U; Shaft Type: Double-Ended; Shaft Rotation: CW; Stroke Degree: 160°; Power Rating: 20W; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible.
Honeywell
Rotary Actuator: Dampers/Valves, On/Off, Spring Return, 60 in-lb, 24V AC, Hardwired, NEMA 3 / IP54 (MPN M8185D1006/U). Key specifications — Manufacturer Part Number: M8185D1006/U; Shaft Type: Double-Ended; Shaft Rotation: CW; Stroke Degree: 160°; Power Rating: 20W; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible.
Actuator: Final Control Elements/Globe Valves, On/Off, Spring Return, 27 in-lb, 24V AC/DC (MPN MS8103A1130/U). Key specifications — Manufacturer Part Number: MS8103A1130/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC/DC; Brand: HONEYWELL; Electrical Connection Type: Screw Terminals; Auxiliary Switch Included: Yes.
Honeywell
Actuator: Final Control Elements/Globe Valves, On/Off, Spring Return, 27 in-lb, 24V AC/DC (MPN MS8103A1130/U). Key specifications — Manufacturer Part Number: MS8103A1130/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC/DC; Brand: HONEYWELL; Electrical Connection Type: Screw Terminals; Auxiliary Switch Included: Yes.
Actuator: Air Handlers/Louvers/Ventilation Flaps, Floating Point/Proportional, Spring Return (MPN MS7505W2030/U). Key specifications — Manufacturer Part Number: MS7505W2030/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC/DC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Hardwired.
Honeywell
Actuator: Air Handlers/Louvers/Ventilation Flaps, Floating Point/Proportional, Spring Return (MPN MS7505W2030/U). Key specifications — Manufacturer Part Number: MS7505W2030/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC/DC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Hardwired.
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, Floating Point/Proportional (MPN MS7520A2205/U). Key specifications — Manufacturer Part Number: MS7520A2205/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.
Honeywell
Actuator: Ball Valves/Butterfly Valves/Cage Valves/Dampers/Globe Valves, Floating Point/Proportional (MPN MS7520A2205/U). Key specifications — Manufacturer Part Number: MS7520A2205/U; Shaft Type: Self-Centering Clamping; Shaft Rotation: CW/CCW; Stroke Degree: 95°; Input Voltage: 24V AC; Brand: HONEYWELL; For Use With Building Automation Systems: Building Automation System Compatible; Electrical Connection Type: Screw Terminals.