

M4185B1009 | Honeywell Modutrol IV Spring Return Motor 120V
- Regular price
- $1,677.00
- Sale price
- $1,677.00
- Regular price
-
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Product Description P/N: M4185B1009
Description
The Honeywell M4185B1009 is a Modutrol IV spring return motor engineered for two-position control of dampers and valves in HVAC systems. It operates on 120V AC at 50/60 Hz, provides 60 lb-in torque, and features an adjustable stroke from 90° to 160°, delivering durable, precise control performance with a built-in transformer and one auxiliary switch.
Technical Specifications
Condition | New/Never Used Surplus |
Brand | Honeywell |
Category | HVAC Actuators |
Part Number | M4185B1009 |
Subcategory | Modutrol IV Motor |
Series | 41 Series |
Power Supply | 120V AC, 50/60 Hz |
Power Consumption | 20 VA |
Control Type | Two-position, SPST |
Fail-Safe Mode | Spring return to normal position on power loss |
Torque Output | 60 lb-in |
Stroke Adjustment | Field adjustable 90°–160° (asymmetrical) |
Timing | 30–60 seconds nominal |
Shaft Configuration | Dual-ended, slotted and tapped both ends |
Shaft Dimensions | 0.375 in square |
Mounting Type | Foot-mounted |
Auxiliary Switch | 1 factory-installed SPDT switch |
Switch Ratings | 7.2A @ 120V, 3.6A @ 240V (AFL); 43.2A @ 120V, 21.6A @ 240V (ALR) |
Rotation Direction | Clockwise on signal increase (normally closed) |
Electrical Connections | Quick-connect terminals |
Temperature Range | -40°F to 150°F (-40°C to 65°C) |
Enclosure Protection | NEMA 3 (upright mounting) |
Deadweight Load (Shaft) | 200 lbs each end; 300 lbs combined |
Construction | Rolled steel frame with aluminum flange |
Dimensions | 6-7/16" H × 5-1/2" W × 8-3/4" D |
Weight | 9.00 lbs |
Information About M4185B1009
The M4185B1009 is part of Honeywell’s Modutrol IV Series, a robust line of industrial and HVAC control motors built for precise, long-lasting performance. This model provides spring-return operation, ensuring automatic repositioning to normal state upon power interruption for fail-safe reliability. It includes a built-in transformer, dual-ended shaft, and one auxiliary switch for enhanced versatility. The adjustable stroke feature (90° to 160°) allows for customized control settings, while its 60 lb-in torque rating and 20 VA drive power make it suitable for a wide range of damper and valve control applications. Designed with a rugged steel housing and weather-protected junction box, it withstands harsh environmental conditions and continuous operation demands.
Key Features
- Spring Return Function: Returns the motor to its normal position automatically during power loss, ensuring system safety.
- High Torque Output: Provides 60 lb-in of torque for reliable control of dampers and valves under heavy loads.
- Adjustable Stroke Range: Field-adjustable from 90° to 160° for flexible operation in various system configurations.
- Dual-Ended Shaft Design: Enables operation of valve linkages from either end for normally open or normally closed configurations.
- Integrated Transformer: Simplifies installation by providing built-in power conversion for Modutrol IV control circuitry.
- Durable Construction: Features a rolled steel frame and aluminum flange for extended service life in industrial environments.
- Auxiliary Switch Included: One factory-mounted SPDT switch allows additional control or feedback circuit integration.
- Weather Protection: NEMA 3-rated junction box (upright mount) ensures protection against dust and moisture.
The M4185B1009 delivers the reliability and precision required for HVAC control applications, offering smooth actuation, configurable performance, and long-term operational durability.
Description
The Honeywell M4185B1009 is a Modutrol IV spring return motor engineered for two-position control of dampers and valves in HVAC systems. It operates on 120V AC at 50/60 Hz, provides 60 lb-in torque, and features an adjustable stroke from 90° to 160°, delivering durable, precise control performance with a built-in transformer and one auxiliary switch.
Technical Specifications
Condition | New/Never Used Surplus |
Brand | Honeywell |
Category | HVAC Actuators |
Part Number | M4185B1009 |
Subcategory | Modutrol IV Motor |
Series | 41 Series |
Power Supply | 120V AC, 50/60 Hz |
Power Consumption | 20 VA |
Control Type | Two-position, SPST |
Fail-Safe Mode | Spring return to normal position on power loss |
Torque Output | 60 lb-in |
Stroke Adjustment | Field adjustable 90°–160° (asymmetrical) |
Timing | 30–60 seconds nominal |
Shaft Configuration | Dual-ended, slotted and tapped both ends |
Shaft Dimensions | 0.375 in square |
Mounting Type | Foot-mounted |
Auxiliary Switch | 1 factory-installed SPDT switch |
Switch Ratings | 7.2A @ 120V, 3.6A @ 240V (AFL); 43.2A @ 120V, 21.6A @ 240V (ALR) |
Rotation Direction | Clockwise on signal increase (normally closed) |
Electrical Connections | Quick-connect terminals |
Temperature Range | -40°F to 150°F (-40°C to 65°C) |
Enclosure Protection | NEMA 3 (upright mounting) |
Deadweight Load (Shaft) | 200 lbs each end; 300 lbs combined |
Construction | Rolled steel frame with aluminum flange |
Dimensions | 6-7/16" H × 5-1/2" W × 8-3/4" D |
Weight | 9.00 lbs |
Information About M4185B1009
The M4185B1009 is part of Honeywell’s Modutrol IV Series, a robust line of industrial and HVAC control motors built for precise, long-lasting performance. This model provides spring-return operation, ensuring automatic repositioning to normal state upon power interruption for fail-safe reliability. It includes a built-in transformer, dual-ended shaft, and one auxiliary switch for enhanced versatility. The adjustable stroke feature (90° to 160°) allows for customized control settings, while its 60 lb-in torque rating and 20 VA drive power make it suitable for a wide range of damper and valve control applications. Designed with a rugged steel housing and weather-protected junction box, it withstands harsh environmental conditions and continuous operation demands.
Key Features
- Spring Return Function: Returns the motor to its normal position automatically during power loss, ensuring system safety.
- High Torque Output: Provides 60 lb-in of torque for reliable control of dampers and valves under heavy loads.
- Adjustable Stroke Range: Field-adjustable from 90° to 160° for flexible operation in various system configurations.
- Dual-Ended Shaft Design: Enables operation of valve linkages from either end for normally open or normally closed configurations.
- Integrated Transformer: Simplifies installation by providing built-in power conversion for Modutrol IV control circuitry.
- Durable Construction: Features a rolled steel frame and aluminum flange for extended service life in industrial environments.
- Auxiliary Switch Included: One factory-mounted SPDT switch allows additional control or feedback circuit integration.
- Weather Protection: NEMA 3-rated junction box (upright mount) ensures protection against dust and moisture.
The M4185B1009 delivers the reliability and precision required for HVAC control applications, offering smooth actuation, configurable performance, and long-term operational durability.
