Technical data sheet

LMB24-IP

www.belimo.us

LMB24-IP • en-us • 2020-09-01 • Subject to change

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EMC

CE according to 2014/30/EU

Agency Listing

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

E60730-1:02, CE acc. to 2014/30/EU and 2014/35/EU

Quality Standard

ISO 9001

Mode of operation

Type 1

Rated impulse voltage supply / control

0.8 kV

Ambient temperature

-22...122°F [-30...50°C]

Storage temperature

-40...176°F [-40...80°C]

Ambient humidity

max. 95% r.H., non-condensing

Servicing

maintenance-free

Weight Weight

1.5 lb [0.68 kg]

Materials Housing material

UL94-5VA

Product features

For proportional modulation of dampers in HVAC systems. Actuator sizing should be done in accordance

with the damper manufacturer’s specifications.

The actuator is controlled via the Belimo Cloud, BACnet/IP or Modbus TCP and drives to the position

defined by the control variable. Multiple data points can be written and read via the control interface.

Local control mode: the actuator receives an analog control signal from a conventional controller and

drives to the control position. In addition, using the Belimo Cloud, BACnet/IP or Modbus TCP, various data

points can be read and with the exception of the control signal written to the actuator. This Belimo Cloud

connected damper actuator has two universal sensor inputs ready for your innovative HVAC applications.

The two universal sensor inputs (passive, active, or contact) serve as an analogue/digital converter for the

digital transmission of the sensor value to a higher level system. Selecting the sensor type is accomplished

via connection to the integrated web server (RJ45 connection to the web browser) or directly via the

Belimo Cloud. The actuators performance and sensor data is recorded locally with 13 months of storage.

This data can be used for analytical purposes, downloaded via csv files, or used in your HVAC application.

The actuator is not provided with and does not require any limit switches, but is electronically protected

against overload. The anti-rotation strap supplied with the actuator will prevent lateral movement.

The LMB(X) series provides 95° of rotation and a visual indicator indicates position of the actuator. When

reaching the damper or actuator end position, the actuator automatically stops. The gears can be

manually disengaged with a button on the actuator cover.

The LMB(X) actuators use a brushless DC motor, which is controlled by an Application Specific Integrated

Circuit (ASIC). The ASIC monitors and controls the actuator’s rotation and provides a digital rotation

sensing (DRS) function to prevent damage to the actuator in a stall condition. Power consumption is

reduced in holding mode.

Add-on auxiliary switches or feedback potentiometers are easily fastened directly onto the actuator body

for signaling and switching functions.

Connection option for two sensors (passive sensor, active sensor or switching contact). The actuator

serves as an analogue/digital converter for the transmission of the sensor signal to the higher level

system.

The configuration can be carried out through the integrated web server (RJ45 connection to the web

browser), by communicative means or via the Cloud.

Additional information regarding the integrated web server can be found in the separate documentation.

This can be inverted in cases of control with an analogue positioning signal. The inversion causes the

reversal of the standard behaviour, i.e. for control signal 0%, the actuator is opened to max and for

control signal 100%, the actuator is closed.

For proportional modulation of dampers in HVAC systems. Actuator sizing should be done in accordance

with the damper manufacturer’s specifications.

The actuator is controlled via the Belimo Cloud, BACnet/IP or Modbus TCP and drives to the position

defined by the control variable. Multiple data points can be written and read via the control interface.

Application

Mode of operation

Converter for sensors

Communication

Positioning signal inversion

Application