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EFB120

EFB120
MSRP: $1,114.00
Price: $417.75
You Save: $696.25 (63 %)

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Belimo Part Number: EFB120
 
Torque: 270 in-lb [30 Nm]
 
Signal: On/Off 2 position control

Power Supply: 100. . . 240 VAC +10% / -20%, 50/60 Hz, 100. . . 125 VDC 10%

Running Time (motor): 75 seconds

Running Time (fail-safe): <20 sec @ -4 deg.F to +122 deg.F [-20 deg.C to +50 deg.C], <60 sec @ -22 deg.F [-30 deg.C]

Technical Cutsheet  EFB & EFX actuators, Technical Document
Installation Instructions Product Broshure

 

Application
For On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturers specifications. Control is On/Off from an auxiliary contact, or a manual switch. The actuator is mounted directly to a damper shaft up to 1.05 in diameter by means of its universal clamp. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.
 
Operation
The EFB and EFX series actuators provide true spring return operation for reliable failsafe application and positive close off on air tight dampers. The spring return system provides constant torque to the damper with, and without, power applied to the actuator.
 
The EFB and EFX series provides 95 of rotation and is provided with a graduated position indicator showing 0 to 95.
 
The actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches.
 
The EFB120-S and EFX120-S versions are provided with two built-in auxiliary switches. These SPDT switches provide safety interfacing or signaling, for example, for fan start-up. The switching function at the fail-safe position is fixed at +10, the other switch function is adjustable between +10 to +85. The EFB120, EFB120-S, EFX120 and EFX120-S actuator is shipped at +5 (5 from full fail-safe) to provide automatic compression against damper gaskets for tight shut-off.

 

Fail-Safe: Spring Return
Control Input: On/Off 2 position
Power Supply Type: 120 to 240V
Item Number: EFB120
Manufacturer: Belimo
Manufacturer Part No: EFB120

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