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page 21

Pc-board DP-S3NEFI

The pc-board DP-S3NEFI is mains lter and power-up circuit in one for the V24 mobile.

Functions

- mains lter

- reducing start-up peak current for capacitors

- supply and safeguarding of control transformer

Measuring points

designation measure point result

mains input L1 LP1

~ 400V ACmains input L2 LP2

mains input L3 LP3

mains output L1 LP4

~ 400V ACmains output L2 LP5

mains output L3 LP6

supply voltage control transformer X10/1

X10/2

400V AC

drive level relay X4/1, 3

X4/2, 4

24V DC

Picture pc-board DP-S3NEFI

X10

SI3

SI4

LP1

LP2

LP3

LP4

LP6

LP5

LP7

650.1281.x DP-S3NEFI RP359/1

D00.0107.0-00

Fuses

Safeguarding the control transformer via Si1, Si2 : each 4A, 400V (slow)

LORCH V24 User Manual

Questions and Answers: