Belimo EFX24-SR-S N4H Direct Coupled Actuator 270 in-lb

Product Description

The BELIMO EFX24-SR-S N4H is a direct coupled actuator with 270 in-lb torque. It is designed for fail-safe, modulating control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifications. It provides a feedback signal for position indication or master-slave applications.

• Provides constant torque to the damper with, and without, power applied to the actuator
• May be stalled anywhere in its normal rotation without the need of mechanical end switches
• Provided with two built in auxiliary switches that provide safety interfacing or signaling

Product Highlights

This actuator offers reliable damper control with spring return functionality and versatile control options.

Product Information

Standard Information

• Brand: BELIMO
• Manufacturer Part Number: EFX24-SR-S N4H
• Country of Origin: United States

Technical Specifications

• Housing: IP66, NEMA 4X, UL Enclosure Type 4
• Auxiliary Switch: 2 x SPDT
• Power Consumption: 8 W Running, 4.5 W Holding
• Operating Conditions: -22 F To 122 F (-30 C To 50 C)
• Electrical Connection: Terminal Block(s) Inside Junction Box With Knockouts
• Actuator Type: Spring return
• Angle of Rotation: 95
• Control Type: DC 2...10 V
• Degree of Protection: IP66 NEMA4 ULEnclosureType4
• Direction of Rotation (Fail-Safe): Reversible with cw/ccw mounting
• Manual Override: 5 mm hex crank (3/16" Allen) supplied
• Power Consumption (Holding): 4.5 W
• Power Consumption (Running): 8 W
• Running Time (Fail-safe): <20 s
• Running Time (Motor): 95s / 90B0
• Safety Function: YES
• Torque: 270 in-lb [30Nm]
• Voltage AC/DC: AC/DC24V
• Runtime: 95 Secs
• Voltage: 24vdc
• Nema Rating: Nema 4
• Spring Return: Spring Return
• Supply Va: 14 VA
• Supply Voltage (Nominal): 24 VAC
• Control Signal: Analog
• Input Impedance: SR Models: 100 k 4-20 mA; MFT Models: 100 k 4-20 mA; 1500
• Motor: Brushless DC
• Wiring: TFB, LF: 3' (0.9 m) cable, 18 AWG, plenum rated (modulating models) - 3' (0.9 m) appliance cable (on/off, MFT, -S models); NFB, AFB, EFB: 3' (0.9 m) appliance cable, 18 AWG; NEMA 4: Terminal blocks inside housing
• Conduit Connection: w/Cables: 1/2" NPT; NEMA 4: Four knockouts for waterproof conduit fittings
• Feedback: 2-10 VDC (-SR and -MFT models only)
• Spring Return Time: < 60 seconds
• Rotation: 95 < 71.4 db
• Resolution: 100 steps
• Life Expectancy: 2-Position: 60,000 cycles; Float/Prop.: 60,000 cycles; 500,000 repositions
• Operating Temperature: -22 4 models with heater option can go down to -40
• Operating Humidity: 5 to 95% RH
• Approvals: cULus, CE, RoHS