User’s Manual 7M
3
USED SYMBOLS ON DEVICES’ HOUSING AND LABELS
SYMBOL
EXPLANATION
Three-phase 4-wire connection (3L+N)
Three-phase 3-wire 3 system connection (3L)
Three-phase 3-wire 2 system connection (3L-2I Aron connection)
Single-phase connection (L+N).
!
WARNING
Indicates situations where careful reading of this manual is required and following
requested steps to avoid potential injury is advised
Double insulation in compliance with the EN 61010−1: 2010 standard
NFC communication
IR - infrared (optical) communication