Belimo LRB24-SR-T Manual

Technical Data 2450
Power Supply 24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10%
Power consumption in operation 1.5 W
Power consumption in rest
position
0.2 W
Transformer sizing 3 VA (class 2 power source)
Electrical Connection Screw terminal (for 26 to 14 GA wire)
Overload Protection electronic thoughout 0° to 90° rotation
Operating Range DC 2...10 V, 4...20 mA w/ ZG-R01 (500 Ω,
1/4 W resistor)
Input Impedance 100 kΩfor DC 2...10 V (0.1 mA), 500 Ωfor
4...20 mA
Position Feedback DC 2...10 V
Angle of rotation 90°
direction of rotation motor reversible with built-in switch
Position indication integrated into handle
Manual override external push button
Running Time (Motor) default 90 sec, variable 150, 90, 45, 35 sec
Ambient humidity 5...95% r.H. non-condensing
Ambient temperature -22...122°F [-30...50°C]
Storage temperature -40...176°F [-40...80°C]
Degree of Protection IP40, NEMA 1
Agency Listing cULus acc. to UL60730-1A/-2-14, CAN/CSA
E60730-1:02, CE acc. to 2004/108/EC
Noise level, motor <35 dB (A)
Maintenance maintenance-free
Quality Standard ISO 9001
Weight 1.1 lbs (0.50 kg)
†Rated Impulse Voltage 800V, Type of Action 1, Control Pollution Degree 2.
Safety Notes
⚠WARNING: For Belimo Products sold in California, these Products do or
may contain chemicals which are known to the State of California to cause
cancer and or birth defects or other reproductive harms. For more information
see www.p65warnings.ca.gov.
LRB24-SR-T
Modulating, Non-Spring Return, 24 V, for 2 to 10 VDC or 4...20 mA
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
Date created, 05/01/2019 - Subject to change. © Belimo Aircontrols (USA), Inc.

Wiring Diagrams
INSTALLATION NOTES
Provide overload protection and disconnect as required.
Actuators may be connected in parallel. Power consumption and input
impedance must be observed.
Actuators may also be powered by 24 VDC.
Only connect common to negative (-) leg of control circuits.
A 500 Ωresistor (ZG-R01) converts the 4 to 20 mA control signal to 2
to 10 VDC.
16
Actuators are provided with a numbered screw terminal strip instead of
a cable.
Meets cULus requirements without the need of an electrical ground
connection.
!WARNING! LIVE ELECTRICAL COMPONENTS!
During installation, testing, servicing and troubleshooting of this
product, it may be necessary to work with live electrical components.
Have a qualified licensed electrician or other individual who has been
properly trained in handling live electrical components perform these
tasks. Failure to follow all electrical safety precautions when exposed to
live electrical components could result in death or serious injury.
Control Signal
(+)
VDC/mA
(–)
Feedback Signal
(+)
2 to 10 VDC (–)
Ω
500
Line
Volts
1 3 516
7
Ω
24 VAC Transformer
(1)
(2)
(3)
(5)
Common
Hot +
Y Input, 2 to 10V
U Output
2
2 to 10 VDC / 4 to 20 mA Control
LRB24-SR-T
Modulating, Non-Spring Return, 24 V, for 2 to 10 VDC or 4...20 mA
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
Date created, 05/01/2019 - Subject to change. © Belimo Aircontrols (USA), Inc.