.svg?v=180920048278408794651776809924){kind=small}
EFB24-MFT-S | Belimo Programmable Spring Return Damper Actuator 270 In Lb With Auxiliary Switches 24V
- Regular price
- $1,167.00
- Sale price
- $1,167.00
- Regular price
-
Couldn't load pickup availability
Product Description P/N: EFB24-MFT-S
Description
The Belimo EFB24-MFT-S is a high-torque spring return damper actuator delivering 270 in-lb (30 Nm) for precise and configurable airflow control in HVAC systems. It operates on AC/DC 24 V power and combines MFT programmable control with integrated auxiliary switches for enhanced monitoring and safety functions.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Actuators & Dampers |
| Part Number | EFB24-MFT-S |
| Subcategory | Damper Actuators |
| Nominal Voltage | AC/DC 24 V |
| Nominal Frequency | 50/60 Hz |
| Voltage Range | AC 19.2…28.8 V / DC 21.6…28.8 V |
| Power Consumption (Operation) | 9.5 W |
| Power Consumption (Rest) | 4.5 W |
| Transformer Sizing | 16 VA |
| Control Signal | MFT programmable, 2…10 V |
| Input Impedance | 100 kΩ (2…10 V), 500 Ω (4…20 mA), 1500 Ω (PWM/On-Off/Floating) |
| Operating Modes | VDC, PWM, On/Off, Floating Point |
| Position Feedback | 2…10 V |
| Torque Output | 270 in-lb (30 Nm) |
| Angle of Rotation | 35…95°, adjustable |
| Running Time (Motor) | 60…150 s / 90° |
| Running Time (Fail-Safe) | <20 s @ -20…50°C |
| Auxiliary Switches | 2x SPDT |
| Electrical Connection | Dual 18 GA cables, 1 m, 1/2" conduit |
| Ambient Temperature | -30…50°C |
| Weight | 12 lb (5.3 kg) |
Information About EFB24-MFT-S
The EFB24-MFT-S is part of Belimo’s EFB series of heavy-duty spring return actuators designed for demanding HVAC damper applications. It integrates Belimo MFT multi-functional technology, allowing field configuration of control signals, operating ranges, and actuator behavior to match specific system requirements. The actuator includes two factory-installed auxiliary switches to support position indication, interlocking, and safety-related control logic. Electronic overload protection, double insulation, and adjustable mechanical end stops ensure consistent performance, installation flexibility, and long-term reliability.
Key Features
- Spring Return Fail-Safe Operation: Integrated spring mechanism ensures rapid return to a defined safety position during power loss to protect HVAC systems and equipment.
- High Torque Performance: Provides a constant 270 in-lb (30 Nm) torque output suitable for large or high-pressure air damper applications.
- MFT Programmable Control Technology: Supports configurable control modes including 2…10 V, 4…20 mA, PWM, on/off, and floating point for broad system compatibility.
- Dual Auxiliary SPDT Switches: Includes two adjustable auxiliary switches for precise position indication, sequencing, and safety interlocks.
- Configurable Control Range: Adjustable start and end points allow accurate alignment of actuator response with building automation requirements.
- Electronic Overload Protection: Protects internal components throughout the full 0…95° rotation range against mechanical overload or obstruction.
- Manual Override Capability: Supplied hex crank enables manual damper positioning during commissioning, testing, or maintenance.
The EFB24-MFT-S delivers the reliability and precision required for programmable airflow modulation and dependable fail-safe damper operation in HVAC systems.
Description
The Belimo EFB24-MFT-S is a high-torque spring return damper actuator delivering 270 in-lb (30 Nm) for precise and configurable airflow control in HVAC systems. It operates on AC/DC 24 V power and combines MFT programmable control with integrated auxiliary switches for enhanced monitoring and safety functions.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Actuators & Dampers |
| Part Number | EFB24-MFT-S |
| Subcategory | Damper Actuators |
| Nominal Voltage | AC/DC 24 V |
| Nominal Frequency | 50/60 Hz |
| Voltage Range | AC 19.2…28.8 V / DC 21.6…28.8 V |
| Power Consumption (Operation) | 9.5 W |
| Power Consumption (Rest) | 4.5 W |
| Transformer Sizing | 16 VA |
| Control Signal | MFT programmable, 2…10 V |
| Input Impedance | 100 kΩ (2…10 V), 500 Ω (4…20 mA), 1500 Ω (PWM/On-Off/Floating) |
| Operating Modes | VDC, PWM, On/Off, Floating Point |
| Position Feedback | 2…10 V |
| Torque Output | 270 in-lb (30 Nm) |
| Angle of Rotation | 35…95°, adjustable |
| Running Time (Motor) | 60…150 s / 90° |
| Running Time (Fail-Safe) | <20 s @ -20…50°C |
| Auxiliary Switches | 2x SPDT |
| Electrical Connection | Dual 18 GA cables, 1 m, 1/2" conduit |
| Ambient Temperature | -30…50°C |
| Weight | 12 lb (5.3 kg) |
Information About EFB24-MFT-S
The EFB24-MFT-S is part of Belimo’s EFB series of heavy-duty spring return actuators designed for demanding HVAC damper applications. It integrates Belimo MFT multi-functional technology, allowing field configuration of control signals, operating ranges, and actuator behavior to match specific system requirements. The actuator includes two factory-installed auxiliary switches to support position indication, interlocking, and safety-related control logic. Electronic overload protection, double insulation, and adjustable mechanical end stops ensure consistent performance, installation flexibility, and long-term reliability.
Key Features
- Spring Return Fail-Safe Operation: Integrated spring mechanism ensures rapid return to a defined safety position during power loss to protect HVAC systems and equipment.
- High Torque Performance: Provides a constant 270 in-lb (30 Nm) torque output suitable for large or high-pressure air damper applications.
- MFT Programmable Control Technology: Supports configurable control modes including 2…10 V, 4…20 mA, PWM, on/off, and floating point for broad system compatibility.
- Dual Auxiliary SPDT Switches: Includes two adjustable auxiliary switches for precise position indication, sequencing, and safety interlocks.
- Configurable Control Range: Adjustable start and end points allow accurate alignment of actuator response with building automation requirements.
- Electronic Overload Protection: Protects internal components throughout the full 0…95° rotation range against mechanical overload or obstruction.
- Manual Override Capability: Supplied hex crank enables manual damper positioning during commissioning, testing, or maintenance.
The EFB24-MFT-S delivers the reliability and precision required for programmable airflow modulation and dependable fail-safe damper operation in HVAC systems.