.svg?v=180920048278408794651792026160){kind=small}
Belimo NMB24-3 24V Non-Spring-Return Damper Actuator, 90 in-lb, On/Off and Floating-Point Control
- Regular price
- $299.00
- Sale price
- $299.00
- Regular price
-
Couldn't load pickup availability
Product Description P/N: NMB24-3
Description
The Belimo NMB24-3 is a non-spring-return rotary damper actuator designed for on/off and floating-point airflow control in commercial HVAC systems. Operating on 24 VAC/VDC, it delivers 90 in-lb of torque and completes 90° of movement in 95 seconds. Its adjustable travel and manual gear release support damper setup in ventilation and air handling equipment.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC & Building Automation |
| Part Number | NMB24-3 |
| Subcategory | Damper Actuators |
| Series / Actuator Type | NMB Series; rotary; non-spring return; non-fail-safe |
| Control Type | On/Off and floating-point, three-point control |
| Nominal Supply Voltage | 24 VAC/VDC |
| Supply Frequency / Voltage Range | 50/60 Hz with AC power; 19.2–28.8 VAC / 21.6–28.8 VDC |
| Power Consumption / Supply Sizing | 2 W running; 0.2 W holding; 4 VA supply sizing |
| Rated Torque | 90 in-lb |
| Angle of Rotation | Maximum 95°; adjustable mechanical end stop |
| Motor Running Time | 95 seconds per 90°; constant within rated load |
| Direction of Rotation | Selectable with 0/1 switch |
| Manual Override / Position Indication | External gear-release push button; mechanical position indicator |
| Mounting | Direct coupled; universal clamp for compatible shafts up to 1.05 inches in diameter |
| Overload Protection | Electronic throughout 0–95° rotation |
| Enclosure Ratings | NEMA 2; UL Enclosure Type 2 |
| Ambient Operating Conditions | −22–122°F; maximum 95% RH, non-condensing |
| Weight | 2.9 lb |
Information About NMB24-3
The NMB24-3 is part of Belimo’s NMB Series of direct-coupled electric damper actuators. Its sensorless brushless DC motor uses electronic rotation monitoring to protect the drive during overload or stalled conditions. A universal clamp attaches to compatible damper shafts up to 1.05 inches in diameter, with accessory mounting arrangements available for linkage applications. The actuator automatically stops at the damper or actuator end position and operates without mechanical spring-return functionality.
Key Features:
- Dual Control Modes: Supports on/off operation and floating-point, three-point positioning.
- Rated Torque: Provides 90 in-lb for dampers sized according to the damper manufacturer’s requirements.
- AC/DC Compatibility: Accepts either 24 VAC or 24 VDC power.
- Direct Shaft Mounting: Uses a universal clamp for compatible damper shafts up to 1.05 inches in diameter.
- Selectable Rotation Direction: Includes a 0/1 switch to match motor movement to the installation.
- Adjustable Travel: Provides up to 95° rotation with a mechanical end stop.
- Consistent Running Time: Maintains 95-second travel per 90° within its rated load.
- Manual Gear Release: Disengages the gears through an external push button for manual positioning.
- Electronic Overload Protection: Protects the actuator throughout its operating rotation.
- Visual Position Indication: Provides a mechanical indicator for local damper position checks.
- Low Holding Consumption: Uses 0.2 W while maintaining position.
The NMB24-3 delivers the reliability and precision required for two-position and floating-point damper control in commercial HVAC systems.
Description
The Belimo NMB24-3 is a non-spring-return rotary damper actuator designed for on/off and floating-point airflow control in commercial HVAC systems. Operating on 24 VAC/VDC, it delivers 90 in-lb of torque and completes 90° of movement in 95 seconds. Its adjustable travel and manual gear release support damper setup in ventilation and air handling equipment.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC & Building Automation |
| Part Number | NMB24-3 |
| Subcategory | Damper Actuators |
| Series / Actuator Type | NMB Series; rotary; non-spring return; non-fail-safe |
| Control Type | On/Off and floating-point, three-point control |
| Nominal Supply Voltage | 24 VAC/VDC |
| Supply Frequency / Voltage Range | 50/60 Hz with AC power; 19.2–28.8 VAC / 21.6–28.8 VDC |
| Power Consumption / Supply Sizing | 2 W running; 0.2 W holding; 4 VA supply sizing |
| Rated Torque | 90 in-lb |
| Angle of Rotation | Maximum 95°; adjustable mechanical end stop |
| Motor Running Time | 95 seconds per 90°; constant within rated load |
| Direction of Rotation | Selectable with 0/1 switch |
| Manual Override / Position Indication | External gear-release push button; mechanical position indicator |
| Mounting | Direct coupled; universal clamp for compatible shafts up to 1.05 inches in diameter |
| Overload Protection | Electronic throughout 0–95° rotation |
| Enclosure Ratings | NEMA 2; UL Enclosure Type 2 |
| Ambient Operating Conditions | −22–122°F; maximum 95% RH, non-condensing |
| Weight | 2.9 lb |
Information About NMB24-3
The NMB24-3 is part of Belimo’s NMB Series of direct-coupled electric damper actuators. Its sensorless brushless DC motor uses electronic rotation monitoring to protect the drive during overload or stalled conditions. A universal clamp attaches to compatible damper shafts up to 1.05 inches in diameter, with accessory mounting arrangements available for linkage applications. The actuator automatically stops at the damper or actuator end position and operates without mechanical spring-return functionality.
Key Features:
- Dual Control Modes: Supports on/off operation and floating-point, three-point positioning.
- Rated Torque: Provides 90 in-lb for dampers sized according to the damper manufacturer’s requirements.
- AC/DC Compatibility: Accepts either 24 VAC or 24 VDC power.
- Direct Shaft Mounting: Uses a universal clamp for compatible damper shafts up to 1.05 inches in diameter.
- Selectable Rotation Direction: Includes a 0/1 switch to match motor movement to the installation.
- Adjustable Travel: Provides up to 95° rotation with a mechanical end stop.
- Consistent Running Time: Maintains 95-second travel per 90° within its rated load.
- Manual Gear Release: Disengages the gears through an external push button for manual positioning.
- Electronic Overload Protection: Protects the actuator throughout its operating rotation.
- Visual Position Indication: Provides a mechanical indicator for local damper position checks.
- Low Holding Consumption: Uses 0.2 W while maintaining position.
The NMB24-3 delivers the reliability and precision required for two-position and floating-point damper control in commercial HVAC systems.
