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EFB24-S N4: Spring Return Damper Actuator

Spring, NEMA 4, 270in-lb, On/Off, 24V,SW

Regular Price: $1,193.00

Now only: $553.25

EFB24-S N4: Spring Return Damper Actuator Zoom



Fail-Safe Spring Return
Torque 270 in-lb [30 Nm]
Control Input On/Off
Input Impedance N/A
Position Feedback --
Running Time (motor) 75 seconds
Running Time (fail-safe) <20 sec @ -4°F to +122°F [-20°C to +50°C], <60 sec @ -22°F [-30°C]
Auxiliary Switch 2 x SPDT 3A (0.5A) @ 250 VAC, UL approved, one set at +10° and one set at 85°
Power Supply 24 VAC ± 20%, 50/60 Hz, 24 VDC +20% / -10%
Power Consumption Running: 9.5 W; Holding: 4.5 W
Transformer Sizing 16 VA (Class 2 power source)
Electrical Connection Terminal block(s) inside junction box with knockouts
Overload Protection Electronic throughout 0° to 95° rotation
Shaft Diameter 1/2" to 1.05" round, centers on 3/4" with insert, 1.05" without insert
Angle of Rotation 95° (adjustable with mechanical end stop, 35 to 95°)
Direction of Rotation (motor) Reversible with CW/CCW mounting
Direction of Rotation (fail-safe) Reversible with CW/CCW mounting
Position Indication Visual indicator, 0° to 95° (0° is spring return position)
Manual Override 5 mm hex crank (3/16" Allen), supplied
Humidity Max. 95% RH non-condensing
Ambient Temperature -22°F to +122°F [-30°C TO +50°C]
Ambient Temperature (safety) --
Storage Temperature -40°F to +176°F [-40°C TO +80°C]
Noise Level ≤56.5 dB (A) motor @ 75 seconds, ≤71.4 dB (A) spring return
Housing Material Aluminum die cast and plastic casing
Housing NEMA 4, IP66, Enclosure Type 4
Agency Listing cULus acc. To UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. To 2004/108/EC & 2006/95/EC
Quality Standards ISO 9001
Weight 10 lbs (4.54 kg)

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