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Belimo NMB24-MFT 24V Programmable Non-Spring-Return Damper Actuator, 90 in-lb, Modulating Control
- Regular price
- $545.00
- Sale price
- $545.00
- Regular price
-
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Product Description P/N: NMB24-MFT
Description
The Belimo NMB24-MFT is a non-spring-return rotary damper actuator designed for modulating airflow control in commercial HVAC systems. Operating on 24 VAC/VDC, it delivers 90 in-lb of torque and uses programmable Multi-Function Technology to accommodate different control signals. Adjustable running time and position feedback support integration with compatible building automation controllers.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC & Building Automation |
| Part Number | NMB24-MFT |
| Subcategory | Damper Actuators |
| Series / Actuator Type | NMB Series; rotary; non-spring return; non-fail-safe |
| Nominal Supply Voltage | 24 VAC/VDC; 50/60 Hz with AC power |
| Operating Voltage Range | 19.2–28.8 VAC / 21.6–28.8 VDC |
| Power Consumption / Supply Sizing | 3.5 W running; 1.3 W holding; 6 VA supply sizing |
| Rated Torque | 90 in-lb |
| Control Input | Default 2–10 VDC; MFT configurable for voltage, PWM, floating-point, and on/off operation |
| Current Input Compatibility | 4–20 mA with external ZG-R01 500-ohm, 1/4 W resistor |
| Input Impedance | 100 kΩ for voltage input; 500 Ω with current conversion resistor; 1,500 Ω for PWM, on/off, and floating-point inputs |
| Position Feedback | Default 2–10 VDC; maximum 0.5 mA; configurable voltage output |
| Rotation / Direction | Maximum 95°; adjustable mechanical stop; direction selectable with 0/1 switch |
| Motor Running Time | Default 150 seconds per 90°; configurable from 45–170 seconds |
| Manual Override / Indication | External gear-release push button; mechanical position indicator |
| Mounting / Electrical Connection | Universal clamp for compatible shafts up to 1.05 inches; 18 AWG plenum cable with 1/2-inch NPT conduit connector |
| Enclosure / Ambient Conditions | NEMA 2; UL Enclosure Type 2; −22–122°F; maximum 95% RH, non-condensing |
| Weight | 1.7 lb |
Information About NMB24-MFT
The NMB24-MFT is part of Belimo’s NMB Series of direct-coupled electric damper actuators. Its brushless DC motor incorporates electronic overload protection and digital rotation sensing to protect the drive during stalled conditions. Factory settings provide 2–10 VDC control, while compatible configuration tools allow adjustment of signal parameters and operating modes. A universal shaft clamp, mechanical travel stop, and external gear-release button support installation and manual damper positioning.
Key Features:
- Rated Torque: Delivers 90 in-lb for dampers selected according to the damper manufacturer’s torque requirements.
- Programmable Control: Supports configurable voltage, PWM, floating-point, and on/off operating modes.
- Dual Power Compatibility: Operates from either 24 VAC or 24 VDC supplies.
- Proportional Input: Uses a factory-default 2–10 VDC signal for damper positioning.
- Current Signal Option: Supports 4–20 mA control with an external ZG-R01 500-ohm resistor.
- Position Feedback: Provides a 2–10 VDC output for monitoring actuator position.
- Adjustable Running Time: Allows motor travel time to be configured between 45 and 170 seconds.
- Selectable Direction: Includes a 0/1 switch for reversing motor rotation.
- Manual Gear Release: Disengages the gears through an external push button for manual adjustment.
- Adjustable Travel: Provides up to 95° rotation with a mechanical end stop.
- Electronic Overload Protection: Monitors rotation and protects the drive throughout its operating range.
- Reduced Holding Power: Consumes 1.3 W while maintaining position.
The NMB24-MFT delivers the reliability and precision required for configurable damper positioning and airflow regulation in commercial HVAC systems.
Description
The Belimo NMB24-MFT is a non-spring-return rotary damper actuator designed for modulating airflow control in commercial HVAC systems. Operating on 24 VAC/VDC, it delivers 90 in-lb of torque and uses programmable Multi-Function Technology to accommodate different control signals. Adjustable running time and position feedback support integration with compatible building automation controllers.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | HVAC & Building Automation |
| Part Number | NMB24-MFT |
| Subcategory | Damper Actuators |
| Series / Actuator Type | NMB Series; rotary; non-spring return; non-fail-safe |
| Nominal Supply Voltage | 24 VAC/VDC; 50/60 Hz with AC power |
| Operating Voltage Range | 19.2–28.8 VAC / 21.6–28.8 VDC |
| Power Consumption / Supply Sizing | 3.5 W running; 1.3 W holding; 6 VA supply sizing |
| Rated Torque | 90 in-lb |
| Control Input | Default 2–10 VDC; MFT configurable for voltage, PWM, floating-point, and on/off operation |
| Current Input Compatibility | 4–20 mA with external ZG-R01 500-ohm, 1/4 W resistor |
| Input Impedance | 100 kΩ for voltage input; 500 Ω with current conversion resistor; 1,500 Ω for PWM, on/off, and floating-point inputs |
| Position Feedback | Default 2–10 VDC; maximum 0.5 mA; configurable voltage output |
| Rotation / Direction | Maximum 95°; adjustable mechanical stop; direction selectable with 0/1 switch |
| Motor Running Time | Default 150 seconds per 90°; configurable from 45–170 seconds |
| Manual Override / Indication | External gear-release push button; mechanical position indicator |
| Mounting / Electrical Connection | Universal clamp for compatible shafts up to 1.05 inches; 18 AWG plenum cable with 1/2-inch NPT conduit connector |
| Enclosure / Ambient Conditions | NEMA 2; UL Enclosure Type 2; −22–122°F; maximum 95% RH, non-condensing |
| Weight | 1.7 lb |
Information About NMB24-MFT
The NMB24-MFT is part of Belimo’s NMB Series of direct-coupled electric damper actuators. Its brushless DC motor incorporates electronic overload protection and digital rotation sensing to protect the drive during stalled conditions. Factory settings provide 2–10 VDC control, while compatible configuration tools allow adjustment of signal parameters and operating modes. A universal shaft clamp, mechanical travel stop, and external gear-release button support installation and manual damper positioning.
Key Features:
- Rated Torque: Delivers 90 in-lb for dampers selected according to the damper manufacturer’s torque requirements.
- Programmable Control: Supports configurable voltage, PWM, floating-point, and on/off operating modes.
- Dual Power Compatibility: Operates from either 24 VAC or 24 VDC supplies.
- Proportional Input: Uses a factory-default 2–10 VDC signal for damper positioning.
- Current Signal Option: Supports 4–20 mA control with an external ZG-R01 500-ohm resistor.
- Position Feedback: Provides a 2–10 VDC output for monitoring actuator position.
- Adjustable Running Time: Allows motor travel time to be configured between 45 and 170 seconds.
- Selectable Direction: Includes a 0/1 switch for reversing motor rotation.
- Manual Gear Release: Disengages the gears through an external push button for manual adjustment.
- Adjustable Travel: Provides up to 95° rotation with a mechanical end stop.
- Electronic Overload Protection: Monitors rotation and protects the drive throughout its operating range.
- Reduced Holding Power: Consumes 1.3 W while maintaining position.
The NMB24-MFT delivers the reliability and precision required for configurable damper positioning and airflow regulation in commercial HVAC systems.
