Damp.Rotary, 45in-lb, SR(2-10V), 120V| Application | For proportional modulation 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 from 1/4? up to 5/8? in diameter by means of its universal clamp. Shafts up to 3/4? diameter can be accommodated by an accessory clamp. The actuator operates in response to a 2 to 10 VDC, or with the addition of a 500 � resistor, a 4 to 20 mA control input from an electronic controller or positioner. A 2 to 10 VDC feedback signal is provided for position indication or master-slave applications. |
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| Servicing | maintenance free |
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| Transformer Sizing | 4.5 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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| Input Impedance | 100 k� (0.1 mA), 500 � |
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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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| Operating Range Y | 2 to 10 VDC, 4 to 20 mA |
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| Position Indication | reflective visual indicator (snap-on) |
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| Feedback Output U | 2 to 10 VDC (max 0.5 mA) |
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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, 95, 60, 45, or 35 seconds constant independent of load |
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| Direction of Rotation | reversible with switch actuator will move:
=CCW with decreasing control signal (10 to 2V)
=CW with decreasing control signal (10 to 2V) |
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| Storage temperature | -40�F to 176�F [-40�C to 80�C] |
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| Power consumption | 2.5 W (1 W) |
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| Power supply nominal
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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| NSV24 US | Battery Back-Up Module |
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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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| P370 | Shaft Mount Auxiliary Switch |
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| SGA24 | Min positioners in NEMA 4 housing |
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| ADS-100 | Analog to Digital Switch |
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| ZG-R01 | Resistor for 4 to 20 mA Conversion |
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| PTA-250 | Pulse Width Modulation Interface |
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| IRM-100 | Input Rescaling Module |
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| ZG-LMSA-1 | Shaft Adaptor for 3/8? Diameter Shafts |
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| K-LM20 | 3/4? [20 mm] Shaft Clamp |
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| ZG-LMSA | Shaft Adaptor for 1/2? Diameter Shafts |
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| S1B, S2B | Auxiliary Switch(es) |
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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 LMX 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 LMX120-SR? 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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