NKQX24-SR | Damper Actuator | 54 in-lb | Electronic FS | 24V | Modulating | Belimo
$565.20
Brand: BelimoSKU: NKQX24-SR
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$1,256.00
$565.20
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NKQX24-SR | Damper Actuator | 54 in-lb | Electronic FS | 24V | Modulating | Belimo

Belimo | NKQX24-SR
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Overview

Details for NKQX24-SR

Damper Actuator | 54 in-lb | Electronic FS | 24V | Modulating

Application

For fail-safe, proportional control of dampers in HVAC systems. Actuator sizing should be done in accordance with the damper manufacturer’s specifi cations. 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 actuator operates in response to a 2 to 10 VDC or, with the addition of a 500Ω 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. Not to be used for a master-slave application.

Operation

The NKQ..24-SR actuator provides 95° of rotation and a visual indicator shows the position of the actuator. When reaching the damper or actuator end position the actuator automatically stops. The gear can be manually disengaged by pressing the black button located on the actuator cover. The NKQ..24-SR actuators use a brushless DC motor, which is controlled by an Application Specifi c 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 a holding mode. The actuator is electronically protected against overload. The anti-rotation strap supplied with the actuator will prevent lateral movement. Add-on auxiliary switches or feedback potentiometers are easily fastened directly onto the actuator body for signaling and switching functions.


Specifications

Actuator Type
Electrical fail-safe
Angle of Rotation
95
Control Type
DC 2...10 V
Degree of Protection
IP54 NEMA 2 UL Enclosure Type 2
Direction of Rotation (Fail-Safe)
Reversible with switch
Electrical Connection
cable
Manual Override
External push button
Power Consumption (Holding)
3 W
Power Consumption (Running)
11 W
Running Time (Fail-safe)
<4 s
Running Time (Motor)
4 s / 90B0
Running Time range (Motor)
4...10 s
Safety Function
YES
Torque
54 in-lb [6 Nm]
Voltage AC/DC
AC/DC 24 V

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