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EFX24-S N4H | Belimo 270 In Lb Spring Return On Off Damper Actuator With Heater NEMA 4H
- Regular price
- $1,288.00
- Sale price
- $1,288.00
- Regular price
-
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Product Description P/N: EFX24-S N4H
Description
The Belimo EFX24-S N4H is a high-torque spring return damper actuator designed for on/off control in demanding HVAC and industrial environments. It operates on AC/DC 24 V, delivers 270 in-lb of torque, and includes an integrated heater for reliable performance in low-temperature conditions.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Actuators & Dampers |
| Part Number | EFX24-S N4H |
| Subcategory | Damper Actuators |
| Actuator Type | Spring return, on/off, with heater |
| Nominal Torque | 270 in-lb (30 Nm) |
| 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 (Running) | 9.5 W |
| Power Consumption (Rest) | 4.5 W |
| Heater Power Consumption | 21 W |
| Transformer Sizing | 16 VA |
| Auxiliary Switches | 2 × SPDT |
| Angle of Rotation | Adjustable 35…95° |
| Running Time | 75 s / 90° |
| Fail-Safe Running Time | <20 s |
| Electrical Connection | Terminal blocks in junction box |
| Degree of Protection | NEMA 4 / NEMA 4H |
| Ambient Temperature | -22…122°F (-30…50°C) |
| Weight | 10 lb (4.7 kg) |
Information About EFX24-S N4H
The EFX24-S N4H is part of Belimo’s heavy-duty spring return damper actuator family developed for harsh and low-temperature environments. It features an integrated heater that ensures consistent operation in cold climates, reducing the risk of condensation or mechanical binding. The actuator operates on AC/DC 24 V power and provides reliable on/off control with automatic spring return positioning during power loss. Its sealed NEMA 4H enclosure, double-insulated construction, and electronic overload protection support maintenance-free operation in outdoor, wash-down, and industrial HVAC applications.
Key Features
- High Torque Spring Return Actuation: Delivers 270 in-lb (30 Nm) of torque to reliably operate large or high-resistance dampers.
- Integrated Heater Option: Built-in heater maintains internal operating temperature, ensuring dependable performance in cold or humid environments.
- Fail-Safe Spring Return Function: Automatically drives the damper to a predefined safety position during power loss.
- On Off Control Operation: Designed for straightforward open and close damper control in isolation and safety applications.
- Dual Auxiliary Switches: Two SPDT switches provide configurable end-position indication and interlocking with control systems.
- Rugged Environmental Protection: NEMA 4H enclosure protects against moisture, dust, and harsh outdoor conditions.
- Service-Friendly Design: Manual override and electronic overload protection support safe commissioning and long-term reliability.
The EFX24-S N4H delivers the reliability and precision required for high-torque, fail-safe damper control in extreme environmental conditions.
Description
The Belimo EFX24-S N4H is a high-torque spring return damper actuator designed for on/off control in demanding HVAC and industrial environments. It operates on AC/DC 24 V, delivers 270 in-lb of torque, and includes an integrated heater for reliable performance in low-temperature conditions.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Actuators & Dampers |
| Part Number | EFX24-S N4H |
| Subcategory | Damper Actuators |
| Actuator Type | Spring return, on/off, with heater |
| Nominal Torque | 270 in-lb (30 Nm) |
| 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 (Running) | 9.5 W |
| Power Consumption (Rest) | 4.5 W |
| Heater Power Consumption | 21 W |
| Transformer Sizing | 16 VA |
| Auxiliary Switches | 2 × SPDT |
| Angle of Rotation | Adjustable 35…95° |
| Running Time | 75 s / 90° |
| Fail-Safe Running Time | <20 s |
| Electrical Connection | Terminal blocks in junction box |
| Degree of Protection | NEMA 4 / NEMA 4H |
| Ambient Temperature | -22…122°F (-30…50°C) |
| Weight | 10 lb (4.7 kg) |
Information About EFX24-S N4H
The EFX24-S N4H is part of Belimo’s heavy-duty spring return damper actuator family developed for harsh and low-temperature environments. It features an integrated heater that ensures consistent operation in cold climates, reducing the risk of condensation or mechanical binding. The actuator operates on AC/DC 24 V power and provides reliable on/off control with automatic spring return positioning during power loss. Its sealed NEMA 4H enclosure, double-insulated construction, and electronic overload protection support maintenance-free operation in outdoor, wash-down, and industrial HVAC applications.
Key Features
- High Torque Spring Return Actuation: Delivers 270 in-lb (30 Nm) of torque to reliably operate large or high-resistance dampers.
- Integrated Heater Option: Built-in heater maintains internal operating temperature, ensuring dependable performance in cold or humid environments.
- Fail-Safe Spring Return Function: Automatically drives the damper to a predefined safety position during power loss.
- On Off Control Operation: Designed for straightforward open and close damper control in isolation and safety applications.
- Dual Auxiliary Switches: Two SPDT switches provide configurable end-position indication and interlocking with control systems.
- Rugged Environmental Protection: NEMA 4H enclosure protects against moisture, dust, and harsh outdoor conditions.
- Service-Friendly Design: Manual override and electronic overload protection support safe commissioning and long-term reliability.
The EFX24-S N4H delivers the reliability and precision required for high-torque, fail-safe damper control in extreme environmental conditions.
