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131
TFC120-S US
On/Off, Spring Return, 100-240 VAC
Torque min. 18 in-lb, for control of air dampers
Application
For On/Off fast running, fail-safe control of dampers in HVAC systems. Actuator sizing
should be done in accordance with the damper manufacturer’s specifications. Control
is On/Off from an auxiliary contact, or a manual switch.
The actuator is mounted directly to a damper shaft from 1/4” up to 1/2” in diameter
by means of its universal clamp, 1/2” shaft centered at delivery. A crank arm and
several mounting brackets are available for applications where the actuator cannot be
direct coupled to the damper shaft.
Operation
The TF series actuators provide true spring return operation for reliable fail-safe
application and positive close off on air tight dampers. The spring return system
provides consistent torque to the damper with, and without, power applied to the
actuator.
The TF series provides 95° of rotation and is provided with a graduated position
indicator showing 0° to 90°.
The actuator may be stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced in holding mode. The
actuator is double insulated so an electrical ground connection is not necessary.
The TFC120-S US versions are provided with one built-in auxiliary switch. This SPDT
switch is provided for safety interfacing or signaling, for example, for fan start-up. The
switching function is adjustable between 0° and 95°.
SAFETY NOTE
Screw a conduit fi tting into the actuator’s bushing. Jacket the actuator’s input and
output wiring with suitable fl exible conduit. Properly terminate the conduit in a
suitable junction box.
Dimensions
(Inches [mm])
0.43" [11]
0.77" [19.5]
4.5"
[114]
0.2"
[5.2]
6.28"
[159.5]
3.0"
[76.2]
3.30"
[83.72]
2.40"
[61]
0.68" [16.7]
Standard:
1/4" to 1/2"
1/4" to 5/16"
D
096
Technical Data
TFC120-S US
Power supply
nominal 100 to 240 VAC, 50/60 Hz
tolerance 85 to 265 VAC, 50/60 Hz
Power consumption
running 3 W
holding 1.5 W
Transformer sizing
6 VA (class 2 power source)
Electrical connection
two 3 ft, 18 GA appliance cable
1/2” conduit connector
Overload protection
electronic throughout 0 to 95° rotation
Electrical protection
actuators are double insulated
Angle of rotation
max 95°, adjust. with mechanical stop
Torque
min. 18 in-lb [2 Nm]
Direction of rotation
reversible with cw/ccw mounting
Position indication
visual indicator, 0° to 95°
(0° spring return position)
Auxiliary switch
1 x SPDT 3A (0.5A) @ 250 VAC, UL approved
adjustable 0° to 95°
Running time
motor < 30 sec (0 to 18 in-lb)
spring < 25 sec @-4°F to 122°F [-20°C to 50°C]
< 60 sec @-22°F [-30°C]
Humidity
5 to 95% RH non-condensing
Ambient temperature
-22°F to 122°F [-30°C to 50°C]
Storage temperature
-40°F to 176°F [-40°C to 80°C]
Housing
NEMA type 2 / IP42, UL enclosure type 2
Housing material
UL94-5VA
Agency listings†
cULus acc. to UL60730-1A/-2-14,
CAN/CSA E60730-1:02, CE acc. to 2004/108/EC,
and 2006/95/EC
Noise level (max)
running < 56 db (A)
spring return 63 dB (A)
Servicing
maintenance free
Quality standard
ISO 9001
Weight
1.5 lbs (0.7 kg)
† Rated Impulse Voltage 4kV, Type of action 1.AA.B, Control Pollution Degree 3.
M40024 - 05/10 - Subject to change.
© Belimo
Aircontrols (USA),
Inc.