m520-u5nl ETC-unknow, m520-u5nl Datasheet - Page 10

• Manufacturer Part Number: m520-u5nl
• Description: Electromechanical Relay Spst-no-dm 50a 28vdc 290ohm
• Manufacturer: ETC-unknow

N°023
Application notes
MOUNTING DISTANCE BETWEEN RELAYS
Applicable to M2XX / M3XX / M4XX / M5XX
Definition and applicability
This application note defines the minimum distance between relays to maintain the whole performances of the
relays as given in our data sheets.
Phenomenon analysis
Each relay generates a magnetic field either when relay is de-energised because of the permanent magnet or in
the energised position because of permanent magnet and coil. The magnetic field generated by one relay could
affect the performance of another relay when the below minimum distance between relay is not respected. If the
relays are mounted adjacent to each other, it is advisable to alternate direction of magnetic path on every other unit
and to keep a 1.6 mm space between relays, figure “A”. Or when mounted in the same direction, separate each
relay from the other by 3.2 mm, figure “B”. If two or more rows of relays are installed, allow clearance of 3.2 mm
between rows, figures “C” and “D”. Provide 4.8 mm space between relays if used in opposition, figure “E”. Distance
in millimetre.
Date of issue: 9/07
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