Ferguson machinery


M75 Damper Controller

Maker: Belimo - made in USA
Belimo NF24 US spring return actuator.
Designed for control of dampers in HVAC systems.

Control is On/Off from an auxiliary contact, or a manual switch.

Mounted directly to a shaft up to 26,5mm diameter by means of its universal clamp.

Spring return operation for reliable fail-safe application and positive close off on air tight dampers.
The spring return system provides constant torque to the damper with, and without, power applied to the actuator.

95° of rotation and is provided with a graduated position indicator and the actuator may be stalled anywhere in its normal rotation without the need of mechanical end switches.

Product Specifications
Control Input Values On/Off
Weight 3.0 kg
Ambient Temperature -30°C to +50°C
Auxiliary Switch No Switch
Power Consumption running: 5 W, holding: 2.6 W
Power Supply 24 VAC/DC
Va Rating 8 VA
Noise Level less than 45 dB (A)
Shaft Diameter 12,7 to 26.5mm
Housing NEMA 2 / IP54
Housing Material zinc coated steel
Angle of Rotation 95°, adjustable 30 to 95° w/accessories
Direction of Rotation spring return can be selected by CW/CCW mounting
Manual Override None
Minimum Torque (in-lb) 60
Running Time (motor) < 75 sec.
Overload Protection electronic throughout 0 to 95° rotation
Spring Return Fail Safe yes
Quality Standards ISO 9001
Humidity Rating 5 to 95% RH noncondensing
Storage Temperature -40°F to +176°F [-40°C to +80°C]
Running Time (Spring) < 60 sec.
Dimensions: Length 250mm x Width 100mm x Height 60mm
Price: $65.00 + GST - Prices are in $NZ.
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