Belimo Spring Return Damper Actuator 30 Nm – EF Series

The Belimo EF Series Spring Return Damper Actuators deliver a 30 Nm (270 in-lb) torque output for demanding HVAC air damper and smoke control applications. Available in On/Off and modulating control versions with 24 V or 230 V power supply options, the EF Series combines high torque, mechanical spring return fail-safe operation, low power consumption, and outstanding reliability for commercial and industrial buildings.

  • Product: Belimo Spring Return Damper Actuator – EF Series
  • Series: EF
  • Torque: 30 Nm (270 in-lb)
  • Control Types: On/Off, Modulating
  • Models: EF24A-S2, EF24A-SR, EF230A-S2
  • Power Supply: 24 V AC/DC or 230 V AC
  • Function: Air damper control with mechanical spring return
  • Applications: HVAC air dampers, ventilation systems, smoke control systems, and industrial air handling units
  • Manufacturer: Belimo, Switzerland
  • Distributor: PGTECH Vietnam
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Mô tả sản phẩm

The Belimo EF Series Spring Return Damper Actuators are designed for controlling air dampers in HVAC ventilation systems and specialized smoke control applications requiring high operating torque. With a 30 Nm (270 in-lb) output, the EF Series provides reliable damper operation for larger dampers and demanding installations where dependable performance is essential.

The actuators feature a mechanical spring return mechanism that automatically returns the damper to its predetermined safety position in the event of a power failure, ensuring reliable fail-safe operation for life safety and building protection systems.

Belimo's integrated MFT (Multi-Function Technology) is incorporated into all spring return actuators, allowing flexible configuration to suit various control systems and application requirements. This enables a single actuator platform to support multiple HVAC control strategies while simplifying system integration.

The EF Series is available in several models, including EF24A-S2 for 24 V On/Off control, EF24A-SR for 24 V modulating control, and EF230A-S2 for 230 V On/Off control. These options provide engineers and contractors with flexible solutions for a wide range of building automation systems.

Designed for direct mounting on standard damper shafts, the actuators feature Belimo's easy slide-on shaft coupling, allowing fast installation and reducing commissioning time. Their low power consumption also enables smaller transformer sizing while improving overall system energy efficiency.

Manufactured in Switzerland, Belimo actuators are recognized worldwide for their precision engineering, reliability, and long service life. PGTECH is the official distributor of genuine Belimo products in Vietnam, providing technical support and complete HVAC control solutions for commercial and industrial projects.

Technical Specifications

  • Product: Belimo Spring Return Damper Actuator
  • Series: EF
  • Torque: 30 Nm (270 in-lb)
  • Models: EF24A-S2, EF24A-SR, EF230A-S2
  • Control Types: On/Off and Modulating
  • Power Supply: 24 V AC/DC or 230 V AC
  • Operating Time: 60–150 seconds
  • Spring Return Time: <20 seconds
  • Damper Size: Up to approximately 66 ft²
  • Applications: HVAC air dampers, ventilation systems, smoke control systems, AHUs, and industrial air handling
  • Manufacturer: Belimo, Switzerland
  • Distributor: PGTECH Vietnam

Đặc tính thiết kế

  • High output torque of 30 Nm (270 in-lb) for demanding damper applications
  • Mechanical spring return provides automatic fail-safe operation during power loss
  • Integrated MFT technology enables flexible configuration for multiple control systems
  • Direct mounting with Belimo slide-on shaft coupling simplifies installation
  • Low power consumption reduces transformer capacity requirements
  • Minimum rated torque is maintained regardless of temperature or voltage variations
  • Pressure die-cast aluminum housing offers exceptional durability
  • Optional NEMA 4 enclosure available for harsh environmental conditions
  • Suitable for HVAC ventilation, smoke control, VAV systems, fan coil units, and air handling equipment
 
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