EFX24-SR-S N4 Belimo Damper Actuator

Overview

The Belimo EFX24-SR-S N4 is a heavy-duty, spring-return modulating damper actuator delivering 270 in-lb (30 Nm) of torque in a NEMA 4/IP66 weather-resistant enclosure.

Features

• Spring return fail-safe mechanism provides reliable mechanical closure during power loss
• High torque output (270 in-lb / 30 Nm) for large dampers
• NEMA 4 / IP66 rated housing for harsh indoor or outdoor environments
• Built-in auxiliary switches (-S model) for end-position signaling

Specifications

• Power Supply: AC/DC 24 V
• Torque: 270 in-lb [30 Nm]
• Control Signal: Modulating 2…10 VDC
• Fail-Safe: Mechanical Spring Return
• Enclosure Rating: NEMA 4 / IP66
• Auxiliary Switches: 2 x SPDT integrated switches

Applications

• Outdoor air dampers, isolation dampers, and smoke/ventilation systems
• Commercial and industrial rooftop units (RTU)
• Severe weather and washdown HVAC actuator applications