Damp.Rotary, 90in-lb, On/Off/Float,120VApplication | For on/off and floating point control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer?s specifications. The actuator is mounted directly to a damper shaft up to 1.05" in diameter by means of its universal clamp, 1/2? 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. |
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Servicing | maintenance free |
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Transformer Sizing | 5.5 VA (Class 2 power source) |
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Electrical Connection | 18 GA appliance rated cable 1/2? conduit connector protected NEMA 2 (IP54) 3 ft [1m] 10 ft [3m] 16 ft [5m] |
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Overload Protection | electronic throughout 0 to 95� rotation |
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Angle of Rotation | max. 95�, adjustable with mechanical stop |
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Manual Override | external push button |
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Housing | NEMA 2, IP54, UL enclosure type 2 |
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Agency Listings | cULus acc. to UL 60730-1A/-2-14, CAN/CSA E60730-1:02, CE acc. to 2004/108/EEC and 2006/95/EC |
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Position Indication | reflective visual indicator (snap-on) |
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Control | on/off, floating point |
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Ambient temperature | -22�F to 122�F [-30�C to 50�C] |
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Humidity | 5 to 95% RH non condensing (EN 60730-1) |
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Running Time | 150 seconds 95 seconds 60 seconds 45 seconds constant independent of load |
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Direction of Rotation | reversible with switch |
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Storage temperature | -40�F to 176�F [-40�C to 80�C] |
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Power consumption | 3.5 W (0.6 W) |
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Power supply nomina tolerance | 100 to 240 VAC, 50/60 Hz
85 to 265 VAC, 50/60 Hz |
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S1A, S2A | Auxiliary Switch (es) |
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P...A | Feedback Potentiometers |
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ZG-100 | Universal Mounting Bracket |
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ZG-101 | Universal Mounting Bracket |
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ZS-100 | Weather Shield - Steel |
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ZS-150 | Weather Shield - Polycarbonate |
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TOOL-06 | 8 mm & 10 mm Wrench |
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ZG-103 | Universal Mounting Bracket |
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ZG-104 | Universal Mounting Bracket |
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ZG-NMA | Crank arm Adaptor Kit |
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AV8-25 | Universal Shaft Extension |
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P370 | Shaft Mount Auxiliary Switch |
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Operation | 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 NMX 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 NMX120-3? actuators use a sensorless brushless DC motor, which is controlled by an Application Specific Integrated Circuit (ASIC). The ASIC monitors and controls the actuator?s 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. Add-on auxiliary switches or feedback potentiometers are easily fastened directly onto the actuator body for signaling and switching functions. |
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Typical Specification | Floating point, on/off control damper actuators shall be electronic direct-coupled type,
which require no crank arm and linkage and be capable of direct mounting to a shaft
up to 1.05? diameter. Actuators shall have brushless DC motor technology and be
protected from overload at all angles of rotation. Actuators shall have reversing switch
and manual override on the cover. Run time shall be constant and independent of
torque. Actuators shall be cULus listed, have a 5-year warranty, and be manufactured
under ISO 9001 International Quality Control Standards. Actuators shall be as
manufactured by Belimo |
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Product Family
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