GKB24-3 | Damper Actuator | 360 in-lb | Electronic FS | 24V | On/Off/Floating Point | Belimo
Overview
Details for GKB24-3
Damper Actuator | 360 in-lb | Electronic FS | 24V | On/Off/Floating Point
Application
For on/off and fl oating point, fail-safe 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. The actuator is mounted directly to a damper shaft up to 1.05“ in diameter by a universal clamp. A crank arm and several mounting brackets are available for applications where actuator cannot be direct coupled to the damper shaft. Control is fl oating point from a triac or relay, or On/Off from an auxiliary contact from a fan motor contactor, controller or manual switch.
Operation
The GK..24-3 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 button located on the actuator cover. The GK..24-3 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.
Fail-Safe Indication
Green LED status indicator light sequence:
On: operation ok, no faults
Blinking: fail-safe mechanism is active
Off: fault is detected or not in operation / capacitors charging
Specifications
- Actuator Type
- Electrical fail-safe
- Angle of Rotation
- 95
- Control Type
- Floating/3-point
- 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)
- <35 s
- Running Time (Motor)
- 150 s / 90B0
- Safety Function
- YES
- Torque
- 360 in-lb [40 Nm]
- Voltage AC/DC
- AC 24 V