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Ex p Control unit
APEX
mv
Electrical connections
Rev. 0
01-37A2-7D0005_MV_Manual_Exp-Control-Unit_2021005_0_en.docx
Page 33 of 80
“Ex e” connection terminals
6.2.1.1
Terminal row “X3”
ATTENTION
MATERIAL DAMAGE DUE TO INCORRECT SUPPLY VOLTAGE.
Internal electronics of the Ex p control unit can be destroyed.
Before activating the supply voltage, compare the value of the supply
voltage with the printed value of the control unit.
Active protective measure.
As an active protective measure, the supply voltage is protected by a
fuse (min 1500 A breaking capacity) and an FI current circuit breaker.
EMC compliant wiring
Internal electronics can be disturbed by missing EMC measures and cause
unforeseen shutdowns.
Loop the supplied ferrite sleeve into the power supply.
See EMC-compliant wiring
An der Klemmreihe X3 wird die Versorgungsspannung angeschlossen.
Mounting ferrite sleeve
Procedure:
Loop the conductors "L" and "N" once through the
ferrite sleeve.
Connect the "L" and "N" conductors to the terminals
provided
Terminal
Connection
Function
1
PE
PE power supply
2
L (+)
Phase (+ conductor) power supply
3
N (-)
Neutral (GND) power supply