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.

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

Ω

24 VAC Transformer

(1)

(2)

(3)

(5)

Common

Hot +

Y Input, 2 to 10V

U Output

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.

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