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M8BS2-041

P. 1 / 3

EM-5478-1 Rev.3

BEFORE USE ....

Thank you for choosing M-System.  Before use, check the 
package you received as below.
If you have any problems or questions with the product, 
please contact M-System's Sales Office or representatives.

PACKAGE INCLUDES:

  Installation base .......................................................(1)

MODEL NO.

Check that model No. described on specification label is 
exactly what you ordered.

INSTRUCTION MANUAL

This manual describes necessary points of caution when you 
use this product, installation, connection and basic mainte-
nance procedures.

POINTS OF CAUTION

CONFORMITY WITH EC DIRECTIVES

• This equipment is suitable for use in a Pollution Degree 

2  environment and in Installation Category III, with the 
maximum operating voltage 300V.
Basic insulation is maintained between the input and output.  

Prior to installation, check that the insulation class of this 

unit satisfies the system requirements.

• The equipment must be mounted inside a panel.
• The equipment must be installed such that appropriate 

clearance and creepage distances are maintained to conform 
to CE requirements.  Failure to observe these requirements 
may invalidate the CE conformity.

POWER INPUT RATINGS

•  Power  input  ratings  are  specified  by  the  model  number 

suffix code.  Check the power input voltage for the unit on 
the specification label.
 

AC power

:  100 – 240V AC rating: 85 – 264V, 47 – 63 Hz, 

   

        130VA min.

 

DC power

:  24 V DC rating: 24V ±10%, 2,5A min.

ENVIRONMENT

• Indoor use
• When  heavy  dust  or  metal  particles  are  present  in  the 

air, install the installation base inside proper housing and 
ventilate it.

• Do not install the base where it is subjected to continuous 
vibration.  Do not apply physical impact to the unit.
• Environmental temperature must be within 0 to 55°C or 32 
to 131°F (0 to 50°C or 32 to 122°F for AC power) with relative 
humidity within 30 to 90% RH(30 to 85% RH for AC Power)  

in order to ensure adequate life span and operation.

•  Be  sure  that  the  ventilation  slits  are  not  covered  with 

cables, etc.

WIRING

• Do not install cables (power supply, input and output) close 

to noise sources (relay drive cable, high frequency line, etc.).

• Do not bind these cables together with those in which noises 
are present.  Do not install them in the same duct.

AND ....

• The unit is designed to function as soon as power is supplied, 

however, a warm up for 10 minutes is required for satisfying 
complete performance described in the data sheet.

COMPONENT IDENTIFICATION

REAR VIEW

MOUNTING REQUIREMENTS

  mm (inch)

INSTALLATION BASE

(for Network interface)

MODEL

M8BS2-041

INSTRUCTION MANUAL

Specifications

230 (9.06)

4–M5 SCREW

50 (1.97)

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