Description
The Belimo NKQX24-MFT is a versatile electronic fail-safe damper actuator engineered for reliable performance in commercial and industrial HVAC applications. Designed to deliver precise control across multiple signal types, this actuator is an ideal solution for building automation systems requiring dependable positioning and safety-critical fail-safe operation.
Key Features
- Electronic fail-safe operation ensures the actuator returns to a defined safe position upon loss of power
- 54 in-lb torque output for dependable damper actuation across a wide range of duct sizes
- Dual supply voltage compatibility: 24Vac and 24Vdc for flexible installation
- 500 Ohm input impedance for 4-20mA analog control signals
- 1500 Ohm input impedance for PWM (Pulse Width Modulation) control signals
- Supports floating point and On/Off control modes for maximum system compatibility
- Multi-function technology (MFT) allows field-selectable control signal configuration
Control Signal Compatibility
- 4-20mA analog signal (500 Ohm impedance)
- PWM signal (1500 Ohm impedance)
- Floating point (tri-state) control
- On/Off control
Electrical Specifications
- Supply Voltage: 24Vac / 24Vdc
- Torque: 54 in-lb
- Input Impedance (4-20mA): 500 Ohm
- Input Impedance (PWM): 1500 Ohm
Applications
- Commercial HVAC air handling units
- Building automation and energy management systems
- Variable air volume (VAV) systems
- Smoke and fire control damper applications requiring fail-safe positioning
- Economizer and outdoor air damper control
The Belimo NKQX24-MFT’s Multi-Function Technology (MFT) platform allows a single actuator to be configured for multiple control signal types in the field, reducing inventory requirements and simplifying installation. Its electronic fail-safe mechanism provides peace of mind in life-safety and critical process applications where a defined actuator position must be maintained during power interruptions.
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