Technical data sheet
NF24A-MOD
www.belimo.com
NF24A-MOD • en-us • 2022-03-15 • Subject to change
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Parametrisable actuators
Combination analogue - communicative
(hybrid mode)
Simple direct mounting
Manual override
Adjustable angle of rotation
High functional reliability
Home position
Adaptation and synchronisation
The factory settings cover the most common applications. Single parameters can be modified
with the Belimo Service Tools MFT-P or ZTH EU.
The communication parameters of the bus systems (address, baud rate etc.) are set with the
ZTH EU. Pressing the "Address" button on the actuator while connecting the supply voltage,
resets the communication parameters to the factory setting.
Quick addressing: The BACnet and Modbus address can alternatively be set using the buttons
on the actuator and selecting 1...16. The value selected is added to the «Basic address»
parameter and results in the effective BACnet and Modbus address.
With conventional control by means of an analog positioning signal, BACnet or Modbus can be
used for the communicative position feedback
Simple direct mounting on the damper shaft with a universal shaft clamp, supplied with an anti-
rotation device to prevent the actuator from revolving.
By using the hand crank the damper can be actuated manually and engaged with the locking
switch at any position. Unlocking is carried out manually or automatically by applying the
operating voltage.
Adjustable angle of rotation with mechanical end stops.
The actuator is overload protected, requires no limit switches and automatically stops when the
end stop is reached.
The first time the supply voltage is switched on, i.e. at the time of commissioning, the actuator
carries out a synchronization. The synchronization is in the home position (0%).
The actuator then moves into the position defined by the positioning signal.
An adaptation can be triggered manually by pressing the "Adaptation" button or with the PC-
Tool. Both mechanical end stops are detected during the adaptation (entire setting range).
Automatic synchronization after actuating the hand crank is programmed. The synchronization
is in the home position (0%).
The actuator then moves into the position defined by the positioning signal.
A range of settings can be adapted using the PC-Tool (see MFT-P documentation)
Accessories
Electrical accessories Description
Type
Auxiliary switch 2 x SPDT
S2A-F
Feedback potentiometer 200 Ω
P200A-F
Feedback potentiometer 1 kΩ
P1000A-F
Mechanical accessories Description
Type
Shaft extension 240 mm Ø20 mm for damper shaft Ø 8...22.7 mm
AV8-25
End stop indicator
IND-AFB
Shaft clamp reversible, for central mounting, for damper shafts Ø12.7 /
19.0 / 25.4 mm
K7-2
Ball joint suitable for damper crank arm KH8 / KH10, Multipack 10 pcs.
KG10A
Ball joint suitable for damper crank arm KH8, Multipack 10 pcs.
KG8
Damper crank arm Slot width 8.2 mm, clamping range Ø10...18 mm
KH8
Actuator arm, for 3/4" shafts, clamping range Ø10...22 mm, Slot width 8.2
mm
KH-AFB
Form fit insert 10x10 mm, Multipack 20 pcs.
ZF10-NSA-F
Form fit insert 12x12 mm, Multipack 20 pcs.
ZF12-NSA-F
Form fit insert 16x16 mm, Multipack 20 pcs.
ZF16-NSA-F
Mounting kit for linkage operation for flat and side installation
ZG-AFB
Base plate extension
Z-SF
Anti-rotation mechanism 230 mm, Multipack 20 pcs.
Z-ARS230L
Hand crank 63 mm
ZKN2-B
