10.5 Mains Connections 10.5.1 Connection socket of ISG3410-400V

Allocation of the CEE socket

Pin namePin designationWire colour
L1Phase L1Brown
L2Phase L2Black/ grey
L3Phase L3Black
NNeutralBlue
PEGroundGreen-yellow

The nominal voltages between the phases are 3x400V (-10/ +10%)

Measurement between the pinsVoltage (VAC)
NL1PEL1230
NL2PEL2230
NL3PEL3230
L1L2400
L1L3400
L2L3400

Further hints:

  • Connecting the protected earth PE and connecting the neutral N is essential!
  • If an earth-leakage circuit breaker (GFI, GFCI) is used for the protection of the CEE-socket, it must be 4-polar.