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LF120 US | Belimo Spring Return Damper Actuator 35 In Lb 120VAC On Off
- Regular price
- $355.00
- Sale price
- $355.00
- Regular price
-
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Product Description P/N: LF120 US
Description
The Belimo LF120 US is a spring return damper actuator designed for reliable on/off control of HVAC air dampers using a wide-range AC power supply. Delivering 35 in-lb torque, it supports dependable airflow control with automatic fail-safe positioning during power loss.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Damper Actuators |
| Part Number | LF120 US |
| Subcategory | Spring Return Damper Actuators |
| Actuator Type | Damper Actuator |
| Control Type | On/Off |
| Nominal Voltage | AC 100…240 V |
| Nominal Frequency | 50/60 Hz |
| Voltage Range | AC 85…264 V |
| Torque Output | 35 in-lb (4 Nm) |
| Spring Return | Yes |
| Power Consumption (Operation) | 3.5 W |
| Power Consumption (Rest) | 2 W |
| Transformer Sizing | 6.5 VA |
| Angle of Rotation | Max. 95° |
| Running Time | 75 s / 90° |
| Electrical Connection | 18 GA cable, 1 m, 1/2" NPT |
| Protection Rating | IP54, NEMA 2 |
| Ambient Temperature | -22…122°F (-30…50°C) |
| Weight | 8.3 lb (3.7 kg) |
Information About LF120 US
The LF120 US is part of Belimo’s spring return damper actuator series engineered for dependable airflow control in commercial HVAC systems. It operates on a universal AC voltage range, allowing direct connection to line-voltage power without the need for external transformers. The actuator incorporates electronic overload protection and double insulation to support safe, maintenance-free operation over its full rotation range. Designed for flexible installation, it supports reversible fail-safe direction and complies with UL and plenum-rated installation requirements.
Key Features
- 35 in-lb Torque Output: Provides consistent mechanical force for reliable operation of small to medium-sized HVAC air dampers.
- Spring Return Fail-Safe Operation: Automatically drives the damper to a predefined safety position when power is interrupted.
- Wide AC Voltage Range: Supports direct connection to 100–240 VAC systems, simplifying electrical design and installation.
- On/Off Control Functionality: Enables straightforward binary damper control for ventilation, exhaust, and zoning applications.
- Electronic Overload Protection: Protects internal components throughout the full 0–95° rotation range to extend service life.
- Reversible Mounting Orientation: Allows clockwise or counterclockwise fail-safe action through mounting configuration and selector switch.
- Plenum-Rated and Certified Design: Complies with UL 2043 and applicable standards for installation in air-handling spaces.
The LF120 US delivers the reliability and precision required for safe, long-term spring return damper control in commercial HVAC airflow management applications.
Description
The Belimo LF120 US is a spring return damper actuator designed for reliable on/off control of HVAC air dampers using a wide-range AC power supply. Delivering 35 in-lb torque, it supports dependable airflow control with automatic fail-safe positioning during power loss.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Belimo |
| Category | Damper Actuators |
| Part Number | LF120 US |
| Subcategory | Spring Return Damper Actuators |
| Actuator Type | Damper Actuator |
| Control Type | On/Off |
| Nominal Voltage | AC 100…240 V |
| Nominal Frequency | 50/60 Hz |
| Voltage Range | AC 85…264 V |
| Torque Output | 35 in-lb (4 Nm) |
| Spring Return | Yes |
| Power Consumption (Operation) | 3.5 W |
| Power Consumption (Rest) | 2 W |
| Transformer Sizing | 6.5 VA |
| Angle of Rotation | Max. 95° |
| Running Time | 75 s / 90° |
| Electrical Connection | 18 GA cable, 1 m, 1/2" NPT |
| Protection Rating | IP54, NEMA 2 |
| Ambient Temperature | -22…122°F (-30…50°C) |
| Weight | 8.3 lb (3.7 kg) |
Information About LF120 US
The LF120 US is part of Belimo’s spring return damper actuator series engineered for dependable airflow control in commercial HVAC systems. It operates on a universal AC voltage range, allowing direct connection to line-voltage power without the need for external transformers. The actuator incorporates electronic overload protection and double insulation to support safe, maintenance-free operation over its full rotation range. Designed for flexible installation, it supports reversible fail-safe direction and complies with UL and plenum-rated installation requirements.
Key Features
- 35 in-lb Torque Output: Provides consistent mechanical force for reliable operation of small to medium-sized HVAC air dampers.
- Spring Return Fail-Safe Operation: Automatically drives the damper to a predefined safety position when power is interrupted.
- Wide AC Voltage Range: Supports direct connection to 100–240 VAC systems, simplifying electrical design and installation.
- On/Off Control Functionality: Enables straightforward binary damper control for ventilation, exhaust, and zoning applications.
- Electronic Overload Protection: Protects internal components throughout the full 0–95° rotation range to extend service life.
- Reversible Mounting Orientation: Allows clockwise or counterclockwise fail-safe action through mounting configuration and selector switch.
- Plenum-Rated and Certified Design: Complies with UL 2043 and applicable standards for installation in air-handling spaces.
The LF120 US delivers the reliability and precision required for safe, long-term spring return damper control in commercial HVAC airflow management applications.