.svg?v=180920048278408794651776809924){kind=small}
EFB24-SR-S N4 | Belimo 270 In Lb Spring Return Modulating Damper Actuator NEMA 4X
- Regular price
- $1,217.00
- Sale price
- $1,217.00
- Regular price
-
Couldn't load pickup availability
Product Description P/N: EFB24-SR-S N4
Description
The Belimo EFB24-SR-S N4 is a high-torque spring return damper actuator delivering 270 in-lb of force for precise modulating airflow control. Operating on AC/DC 24 V with 2…10 VDC control, it provides reliable fail-safe performance in demanding HVAC and industrial environments.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Actuators & Dampers |
| Part Number | EFB24-SR-S N4 |
| Subcategory | Damper Actuators |
| Actuator Type | Spring return, modulating |
| Nominal Torque | 270 in-lb (30 Nm) |
| Nominal Voltage | AC/DC 24 V |
| Control Signal | 2…10 VDC (4…20 mA compatible) |
| Power Consumption (Running) | 8 W |
| Power Consumption (Holding) | 4.5 W |
| Auxiliary Switches | 2 × SPDT |
| Electrical Connection | Internal terminal blocks in junction box |
| Degree of Protection | IP66 |
| Enclosure Rating | NEMA 4X / UL Type 4 |
| Operating Temperature | -22…122°F (-30…50°C) |
| Weight | 10.0 lb |
Information About EFB24-SR-S N4
The EFB24-SR-S N4 is part of Belimo’s heavy-duty spring return damper actuator series designed for applications requiring high torque and environmental protection. It features a robust enclosure rated IP66 and NEMA 4X, allowing installation in wash-down areas, outdoor locations, and harsh mechanical spaces. The actuator operates on AC/DC 24 V and supports modulating control with 2…10 VDC signals, while also accommodating 4…20 mA control through compatible interfaces. With integrated auxiliary switches and maintenance-free construction, it delivers dependable long-term performance in critical airflow control systems.
Key Features
- High Torque Spring Return Actuation: Provides 270 in-lb (30 Nm) of torque to reliably drive large or high-resistance dampers under load.
- Fail-Safe Spring Return Function: Automatically moves the damper to a predefined safety position during power loss to support system protection.
- Precise Modulating Control Capability: Supports 2…10 VDC modulation with compatibility for 4…20 mA control, enabling accurate airflow regulation.
- Dual Auxiliary Switches: Two integrated SPDT switches allow configurable end-position indication and interlocking with other control equipment.
- Rugged Environmental Protection: IP66 and NEMA 4X enclosure ratings ensure resistance to dust, moisture, and harsh operating conditions.
- Industrial-Grade Electrical Connections: Internal junction box with terminal blocks and knockouts simplifies secure field wiring.
- Maintenance-Free Design: Engineered for continuous-duty operation without routine servicing requirements.
The EFB24-SR-S N4 delivers the reliability and precision required for high-torque, fail-safe damper control in commercial and industrial HVAC applications.
Description
The Belimo EFB24-SR-S N4 is a high-torque spring return damper actuator delivering 270 in-lb of force for precise modulating airflow control. Operating on AC/DC 24 V with 2…10 VDC control, it provides reliable fail-safe performance in demanding HVAC and industrial environments.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Actuators & Dampers |
| Part Number | EFB24-SR-S N4 |
| Subcategory | Damper Actuators |
| Actuator Type | Spring return, modulating |
| Nominal Torque | 270 in-lb (30 Nm) |
| Nominal Voltage | AC/DC 24 V |
| Control Signal | 2…10 VDC (4…20 mA compatible) |
| Power Consumption (Running) | 8 W |
| Power Consumption (Holding) | 4.5 W |
| Auxiliary Switches | 2 × SPDT |
| Electrical Connection | Internal terminal blocks in junction box |
| Degree of Protection | IP66 |
| Enclosure Rating | NEMA 4X / UL Type 4 |
| Operating Temperature | -22…122°F (-30…50°C) |
| Weight | 10.0 lb |
Information About EFB24-SR-S N4
The EFB24-SR-S N4 is part of Belimo’s heavy-duty spring return damper actuator series designed for applications requiring high torque and environmental protection. It features a robust enclosure rated IP66 and NEMA 4X, allowing installation in wash-down areas, outdoor locations, and harsh mechanical spaces. The actuator operates on AC/DC 24 V and supports modulating control with 2…10 VDC signals, while also accommodating 4…20 mA control through compatible interfaces. With integrated auxiliary switches and maintenance-free construction, it delivers dependable long-term performance in critical airflow control systems.
Key Features
- High Torque Spring Return Actuation: Provides 270 in-lb (30 Nm) of torque to reliably drive large or high-resistance dampers under load.
- Fail-Safe Spring Return Function: Automatically moves the damper to a predefined safety position during power loss to support system protection.
- Precise Modulating Control Capability: Supports 2…10 VDC modulation with compatibility for 4…20 mA control, enabling accurate airflow regulation.
- Dual Auxiliary Switches: Two integrated SPDT switches allow configurable end-position indication and interlocking with other control equipment.
- Rugged Environmental Protection: IP66 and NEMA 4X enclosure ratings ensure resistance to dust, moisture, and harsh operating conditions.
- Industrial-Grade Electrical Connections: Internal junction box with terminal blocks and knockouts simplifies secure field wiring.
- Maintenance-Free Design: Engineered for continuous-duty operation without routine servicing requirements.
The EFB24-SR-S N4 delivers the reliability and precision required for high-torque, fail-safe damper control in commercial and industrial HVAC applications.
