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MSRP: $511.00
Price: $191.63
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Actuator Customization180 characters remaining
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Belimo Part Number: AMX24-3-S
For on/off and floating point control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturers specifications.
The actuator is mounted directly to a damper shaft up to 1.05 in diameter by means of its universal clamp, self-centered default. A crank arm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.
The actuator is not provided with and does not require any limit switches, but is electronically protected against overload. The anti-rotation strap supplied with the actuator will prevent lateral movement. 
The AM... series provides 95 of rotation and a visual indicator indicates position of the actuator. When reaching the damper or actuator end position, the actuator automatically stops. The gears can be manually disengaged with a button on the actuator cover. 
The AM...24-3 actuators use a sensorless brushless DC motor, which is controlled by an Application Specific Integrated Circuit (ASIC). The ASIC monitors and controls the actuators rotation and provides a digital rotation sensing (DRS) function to prevent damage to the actuator in a stall condition. Power consumption is reduced in holding mode.
The AM...24-3-S version is provided with 1 built-in auxiliary switch. This SPDT switch is provided for safety interfacing or signaling, for example, for fan start-up. The switching function is adjustable 0 to 95. The auxiliary switch is double insulated so an electrical ground connection is not necessary.

Add-on auxiliary switches or feedback potentiometers are easily fastened directly onto the actuator body for signaling and switching functions.

Technical Attributes
Torque 180 in-lb [20 Nm]
Control Input On/Off, Floating Point
Input Impedance 600
Position Feedback --
Running Time (motor) 95 seconds, independent of load
Running Time (fail-safe) --
Auxiliary Switch (-S models) 1 x SPDT, 3A (0.5A) @ 250 VAC, adj. 0 to 100%, UL approved
Power Supply 24VAC 20%, 50/60 Hz, 24VDC 10%
Power Consumption running: 2.5 W, holding: 0.4 W
Transformer Sizing 5.0 VA (class 2 power source)
Electrical Connection 3 ft, 18 GA plenum rated cable with 1/2" conduit connector
3 ft, 18 GA appliance rated cable (-S)
1/2 conduit connector
protected NEMA 2 (IP54)
Overload Protection electronic thoughout 0 to 95 rotation
Shaft Diameter Standard: 1/2" to 1.05" round, centers on 1/2" and 3/4" with insert, 1.05 without insert
Angle of Rotation max. 95, adjustable with mechanical stop
Direction of Rotation (motor) Reversible with switch
Direction of Rotation (fail-safe) --
Position Indication reflective visual indicator (snap on)
Manual Override external push button
Humidity 5 to 95% RH non condensing (EN 60730-1)
Ambient Temperature -22F to 122F [-30C to 50C]
Ambient Temperature (safety) --
Storage Temperature -40F to 176F [-40C to 80C]
Noise Level max 45 db (A)
Housing Material UL94-5VA
Housing NEMA 2, IP54, UL enclosure type 2
Agency Listing cULus acc. to UL60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2004/108/EEC and 2006/95/EC
Quality Standards ISO 9001
Weight 2.2 lbs (1.00 kg)
AMB(X)24-3-T: Electrical connection screw terminal (for 26 to 14 GA wire) unprotected (NEMA 1/IP20)

Item Number: AMX24-3-S
Manufacturer: Belimo
Manufacturer Part No: AMX24-3-S

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