ABB relion REF615 - 5.2 Outputs; 5.2.1 Outputs for tripping and controlling; 5.2.2 Outputs for signalling

Section 5 IED physical connections
5.1 Inputs
5.1.1 Energizing inputs
5.1.1.1 Phase currents
The IED can also be used in single or two-phase applications by
leaving one or two energizing inputs unoccupied. However, at least
terminals X120:7-8 must be connected.
Table 72: Phase current inputs included in configurations A, B, C, D, E, F, H, J, K and N
Terminal Description
X120:7-8 IL1
X120:9-10 IL2
X120:11-12 IL3
5.1.1.2 Residual current
Table 73: Residual current input included in configurations A, B, C, D, E, F, H, J and N
Terminal
Description
X120:13-14 Io
Table 74: Residual current input included in configuration K
Terminal
Description
X120:5-6
IoB
1)
X120:13-14 Io
1) Used only for HREFPDIF1
Table 75: Residual current input included in configuration G
Terminal
Description
X130:1-2 Io
1MRS756378 S Section 5
IED physical connections
REF615 383
Application Manual