ABB RELION 670 Series Installation Manual page 55

1MRK514024-UEN A
If the IED is equipped with a test-switch of type RTXP 24, COMBIFLEX wires with 20 A sockets,
1.5mm² (AWG16) conductor area must be used to connect the auxiliary power.
Procedure
1. Connect signals to the female connector
The conductors can be of rigid type (solid, stranded) or of flexible type.
The female connectors accept conductors with a cross section area of 0.2-2.5 mm
24-14). If two conductors are used in the same terminal, the maximum permissible cross
section area is 0.2-1 mm
If two conductors, each with area 1.5 mm
terminal, a ferrule must be used, see figure 29. Crimp this ferrule properly to the wire
using tools as recommended by the supplier of the ferrules. The fastening screw shall be
tightened with a torque of 0.4 Nm (This torque applies to all binary connectors).
2. Plug the female connector to the corresponding back-side mounted male connector
3. Lock the female connector by fastening the lock screws
IEC02000742 V1 EN-US
Figure 27: A female connector
IEC04000167 V1 EN-US
Figure 28: Board with male connectors
Installation manual
Do not insert anything else to the female connector but the corresponding
male connector. Inserting anything else (such as a measurement probe) may
violate the female connector and prevent a proper electrical contact between
the printed circuit board and the external wiring connected to the screw
terminal block.
2
(AWG 24-18).
2
(AWG 16) need to be connected to the same
xx02000742.vsd
Section 6
Connecting
2
(AWG
49