ABB ret650 - Section 18 IED Physical Connections; Protective Earth Connections; Inputs; Measuring Inputs

Section 18 IED physical connections
18.1 Protective earth connections
The IED shall be earthed with a 16.0 mm
2
flat copper cable.
The earth lead should be as short as possible, less than 1500 mm.
Additional length is required for door mounting.
IEC11000286 V1 EN
Figure 266: The protective earth pin is located to the left of connector X101 on the
3U full 19” case
18.2 Inputs
18.2.1 Measuring inputs
Each terminal for CTs/VTs is dimensioned for one 0.5...6.0 mm
2
wire or for two wires
of maximum 2.5 mm
2
.
1MRK 504 135-UEN A Section 18
IED physical connections
601
Technical manual