DCA 320in Lb NSR Mft Style Std As 2-10 V| Actuator Type | Non fail-safe |
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| Control Type | MFT/Programmable |
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| Electrical Connection | cable |
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| Direction of Rotation (Motor) | reversible with built-in switch |
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| Power Consumption (Holding) | 1.5�W |
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| Power Consumption (Running) | 4.5 W |
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| Degree of Protection | NEMA�2, UL�Enclosure�Type�2 |
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| Shaft Diameter | 1/2" to 1.05" round, centers on 1/2" and 3/4" with insert, 1.05" without insert |
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| Manual Override | external push button |
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| 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 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. The default parameters for 2 to 10 VDC applications of the ?MFT actuator are assigned during manufacturing. If necessary, custom versions of the actuators can be ordered. The parameters can be changed by two means: pre-set and custom configurations from Belimo or on-site configurations using the Belimo PC-Tool software. |
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| Servicing | maintenance free |
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| Power Supply | 24 VAC � 20% 50/60 Hz 24 VDC � 10% |
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| Transformer Sizing | 7 VA (Class 2 power source) |
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| Electrical Connection | 18 GA plenum 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 � 1500 � (PWM, floating point, on/off) |
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| Angle of Rotation | max. 95�, adjustable with mechanical stop electronically variable |
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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 (default) variable (VDC, PWM, floating point, on/off) |
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| Position Indication | reflective visual indicator (snap-on) |
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| Feedback Output U | 2 to 10 VDC, 0.5 mA max VDC variable |
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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 (default) variable (75 to 300 seconds |
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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 | 4.5 W (1.5 W) |
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| S1A, S2A | Auxiliary Switch (es) |
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| P...A | Feedback Potentiometers |
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| ZS-100 | Weather Shield - Steel |
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| ZS-150 | Weather Shield - Polycarbonate |
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| ZS-260 | Explosion Proof Housing |
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| ZG-JSA (-1, 2,3) | Jackshaft Adaptors for Hollow Jackshafts |
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| PS-100 | Actuator Power Supply Simulator |
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| P370 | Shaft Mount Auxiliary Switch |
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| SGA24 | Min positioners in NEMA 4 housin |
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| SGF24 | Min positioners for flush panel mounting |
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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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| K-GM20 | 3/4" [20 mm] Shaft Clamp |
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| ZG-102 | Multiple Actuator Mounting Bracket |
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| ZG-GMA | Crank arm Adaptor Kit |
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| NSV24 | Battery Back-Up Module |
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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 GMB(X) 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 GMB(X)24-MFT actuators use a 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 | Proportional 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 must provide proportional damper control 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. 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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