Belimo LRB24-3 User manual

Technical Data 2253

Power Supply 24 VAC, ±20%, 50/60 Hz, 24 VDC, ±10%

Power Consumption Running 1.5 W

Power Consumption Holding 0.2 W

Transformer Sizing 2.5 VA (class 2 power source)

Electrical Connection 3ft [1m], 18 GA plenum cable with 1/2” conduit

connector

Overload Protection electronic thoughout 0° to 90° rotation

Input Impedance 600 Ω

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) 90 sec

Ambient Temperature Range -22°F to 122°F [-30°C to 50°C]

Storage Temperature Range -40°F to 176°F [-40°C to 80°C]

Housing NEMA 2, IP54, UL Enclosure Type 2

Agency Listings† cULus acc. to UL60730-1A/-2-14, CAN/CSA

E60730-1:02, CE acc. to 2004/108/EC

Noise Level (Motor) <35 dB (A)

Servicing maintenance free

Quality Standard ISO 9001

†Rated Impulse Voltage 800V, Type action 1.B , Control Pollution Degree 3.

LRB24-3

On/Off, Floating Point, Non-Spring Return, 24 V

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN

Date created, 11/29/2017 - 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.

Actuators Hot wire must be connected to the control board common.

Only connect common to neg. (-) leg of control circuits. Terminal

models (-T) have no-feedback.

Actuators with plenum cable do not have numbers; use color codes

instead.

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.

2 3 18

24 VAC Transformer

Blk (1) Common

Red (2) + Hot

Wht (3) Y Input

Line

olts

On/Off

2 3 18

24 VAC Transformer

Blk (1) Common

Red (2) + Hot

Wht (3) Y Input

Line

olts

Floating Point

ComHot

2 3 18

Blk (1) Common

Red (2) + Hot

Wht (3) Y Input

Line

olts

24 VAC Transformer

218

Blk (1) Common

Red (2) + Hot

Wht (3) Y Input

Line

olts

24 VAC Transformer

ComHot

Floating Point - Triac Sink

LRB24-3

On/Off, Floating Point, Non-Spring Return, 24 V

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN

Date created, 11/29/2017 - Subject to change. © Belimo Aircontrols (USA), Inc.

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