We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

JOHNSON CONTROLS Actuator: Dampers, On/Off, Spring Return, 27 in-lb, 85 to 264V AC - Fail-Safe Actuators with Spring Return
JOHNSON CONTROLSFail-Safe Actuators with Spring Return

JOHNSON CONTROLS Actuator: Dampers, On/Off, Spring Return, 27 in-lb, 85 to 264V AC

The JOHNSON CONTROLS M9203-BUB-2 is a fail-safe damper actuator with spring return, featuring On/Off operation. It operates on 85 to 264V AC input with a 2.8W power rating, provides 95° stroke with CW/CCW shaft…

SKU 3G-OTH-68431

Also listed as: M9203BUB2 · M9203 BUB 2

Brand
JOHNSON CONTROLS
Item
Actuator: Dampers, On/Off, Spring Return, 27 in-lb, 85 to 264V AC
Category
Fail-Safe Actuators with Spring Return
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

JOHNSON CONTROLS
Manufacturer Part Number
M9203-BUB-2
Type
On/Off, Spring Return, 27 in-lb, Hardwired Plenum Rated Cables
AC
85 to 264V
Power Rating
2.8W
Input Voltage
85 to 264V AC
Plenum Rating
Plenum Rated
Stroke Degree
95°
Shaft Rotation
CW/CCW
Auxiliary Switch Included
Yes
Electrical Connection Type
Hardwired
For Use With Building Automation Systems
Building Automation System Compatible

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

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

Product Description

The JOHNSON CONTROLS M9203-BUB-2 is a fail-safe damper actuator with spring return, featuring On/Off operation. It operates on 85 to 264V AC input with a 2.8W power rating, provides 95° stroke with CW/CCW shaft rotation, and includes an auxiliary switch. This plenum-rated actuator is hardwired and compatible with building automation systems.

Frequently Asked Questions

What is the JOHNSON CONTROLS M9203-BUB-2 actuator used for?

The JOHNSON CONTROLS M9203-BUB-2 is a fail-safe damper actuator with spring return, used in HVAC building automation systems to control air dampers. It provides 95° stroke with CW/CCW rotation, operates on 85 to 264V AC, and is plenum rated for safe use in air-handling spaces.

What are the specifications of the JOHNSON CONTROLS M9203-BUB-2?

The M9203-BUB-2 is an On/Off, spring return actuator with 27 in-lb torque, 95° stroke, and 85 to 264V AC input. It has a 2.8W power rating, includes an auxiliary switch, and is hardwired with plenum-rated cables. It is compatible with building automation systems.

Where to buy the JOHNSON CONTROLS M9203-BUB-2 worldwide?

3G Electric supplies the JOHNSON CONTROLS M9203-BUB-2 damper actuator worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this fail-safe actuator to your facility. Contact us for availability and lead time.

How to install the JOHNSON CONTROLS M9203-BUB-2 actuator?

Mount the M9203-BUB-2 directly onto the damper shaft using the provided bracket. Ensure the 85 to 264V AC power supply is disconnected before hardwiring the plenum-rated cables. Verify the 95° stroke and CW/CCW rotation match damper requirements. Test spring return function after installation.

Used in

Common applications for JOHNSON CONTROLS
Industrial refrigeration — Johnson Controls P170SA-1C dual pressure control for compressor protection in ammonia or halocarbon systems
Chiller plant automation — Johnson Controls VA7810-HGA-2 electric globe valve actuator for modulating chilled water flow in VG7000 series valves
Pneumatic HVAC retrofit — Johnson Controls T-4002-302 conversion kit for upgrading existing Robertshaw thermostats in commercial buildings
Cooling tower water management — Johnson Controls V-4332-1007 pneumatically actuated diaphragm valve for 3-way diverting of water flow
Boiler fuel oil pressure monitoring — Johnson Controls P545NCB-25C electronic lube oil pressure control with alarm for burner management systems
Process pressure sensing — Johnson Controls P599AAPS105C pressure transmitter with IP67 rating for washdown zones in food and beverage plants

JOHNSON CONTROLS Products

3G Electric supplies JOHNSON CONTROLS 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
57"H-W 12.8"L Squ Stl Mtrzd Cntrl Dampr: 12 3/4 in L, 57 in H, 57 in W, 1 1/2 in Flange Wd, Steel
Dayton
57"H-W 12.8"L Squ Stl Mtrzd Cntrl Dampr: 12 3/4 in L, 57 in H, 57 in W, 1 1/2 in Flange Wd, Steel
57"H-W 12.8"L Squ Alu Mtrzd Cntrl Dampr: 12 3/4 in L, 57 in H, 57 in W, 1 1/2 in Flange Wd, Aluminum
Dayton
57"H-W 12.8"L Squ Alu Mtrzd Cntrl Dampr: 12 3/4 in L, 57 in H, 57 in W, 1 1/2 in Flange Wd, Aluminum
27"H-W 12"L Squ Stl Mtrzd Cntrl Dampr: 12 in L, 27 in H, 27 in W, 1 1/2 in Flange Wd, Steel, Single
Dayton
27"H-W 12"L Squ Stl Mtrzd Cntrl Dampr: 12 in L, 27 in H, 27 in W, 1 1/2 in Flange Wd, Steel, Single
17.75"H-W 5"L GStl Volume Control Dampr: 5 in L, 17 3/4 in H, 17 3/4 in W, Hat Channel, Single
Dayton
17.75"H-W 5"L GStl Volume Control Dampr: 5 in L, 17 3/4 in H, 17 3/4 in W, Hat Channel, Single
19"H-W 12"L Squ Alum Mtrzd Contrl Damper: 12 in L, 19 in H, 19 in W, 1 1/2 in Flange Wd, Aluminum
Dayton
19"H-W 12"L Squ Alum Mtrzd Contrl Damper: 12 in L, 19 in H, 19 in W, 1 1/2 in Flange Wd, Aluminum
23"H-W 12"L Squ Alum Mtrzd Contrl Damper: 12 in L, 23 in H, 23 in W, 1 1/2 in Flange Wd, Aluminum
Dayton
23"H-W 12"L Squ Alum Mtrzd Contrl Damper: 12 in L, 23 in H, 23 in W, 1 1/2 in Flange Wd, Aluminum

More from JOHNSON CONTROLS

View all JOHNSON CONTROLS parts
Actuator: Dampers, On/Off, Spring Return, 177 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9220-BGA-3)
JOHNSON CONTROLS
Actuator: Dampers, On/Off, Spring Return, 177 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9220-BGA-3)
Actuator: Dampers, On/Off, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-BGA-3)
JOHNSON CONTROLS
Actuator: Dampers, On/Off, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-BGA-3)
Actuator: Dampers, Proportional, Spring Return, 27 in-lb, 24V AC, Hardwired Plenum Rated Cables (MPN M9203-GGA-2)
JOHNSON CONTROLS
Actuator: Dampers, Proportional, Spring Return, 27 in-lb, 24V AC, Hardwired Plenum Rated Cables (MPN M9203-GGA-2)
Actuator: Dampers, Proportional, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-GGC-3)
JOHNSON CONTROLS
Actuator: Dampers, Proportional, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-GGC-3)
Actuator: Dampers, Proportional, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-GGA-2)
JOHNSON CONTROLS
Actuator: Dampers, Proportional, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-GGA-2)
Actuator: Dampers, Proportional, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-GGA-3)
JOHNSON CONTROLS
Actuator: Dampers, Proportional, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-GGA-3)
Actuator: Dampers, On/Off, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-BGC-3)
JOHNSON CONTROLS
Actuator: Dampers, On/Off, Spring Return, 70 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9208-BGC-3)
Actuator: Dampers, Proportional, Spring Return, 177 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9220-HGC-3)
JOHNSON CONTROLS
Actuator: Dampers, Proportional, Spring Return, 177 in-lb, 24V AC/DC, Hardwired, NEMA 2 / IP54 (MPN M9220-HGC-3)