Belimo air damper actuator 24V 2-10VDC 4-20mA 90 sec| Actuator Type | Non fail-safe |
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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) | 0.4�W |
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| Power Consumption (Running) | 1.5 W |
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| Degree of Protection | NEMA�2, UL�Enclosure�Type�2 |
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| Shaft Diameter | 1/4" to 5/8" round, centers on 5/8", 3/4" clamp available |
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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 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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| Power Supply | 24 VAC � 20% 50/60 Hz 24 VDC � 10% |
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| Transformer Sizing | 3 VA (Class 2 power source) |
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| Electrical Connection | 3 ft, 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 � |
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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 | 95 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 | 1.5 W (0.4 W) |
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| S1A, S2A | Shaft Mount Auxiliary Switch |
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| P...A | Min positioners in NEMA 4 housing |
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| ZS-100 | Weather Shield - Polycarbonate |
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| ZS-150 | 8 mm & 10 mm Wrench |
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| TOOL-06 | Auxiliary Switch(es) |
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| ZS-T | Weather Shield - Steel |
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| P370 | Feedback Potentiometers |
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| SGA24 | Min positioners for flush panel mounting |
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| SGF24 | Pulse Width Modulation Interface |
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| ADS-100 | Resistor for 4 to 20 mA Conversion |
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| ZG-R01 | Battery Back-Up Module |
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| PTA-250 | Input Rescaling Module |
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| IRM-100 | Analog to Digital Switch |
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| ZG-LMSA-1 | Terminal Cover for NEMA 2 |
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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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| 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 LMB 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 LMB24-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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| 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 from 1/4? to 5/8?. Shafts up to 3/4? diameter can be accommodate with an
accessory clamp. 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. If required, actuator will be
provided with screw terminal strip for electrical connections (LMB24-SR-T). Run time
shall be constant and independent of torque. A 2 to 10 VDC feedback signal shall be
provided for position indication. 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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