Connecting wires to push-in type connectors - Arc protection - Auto synchronization - Bay control and measurement - Merging unit - Transformer protection - 2 winding - Feeder protection - Voltage regulation - Capacitor bank protection - Petersen Coil control - Grid automation - Busbar differential protection (high impedance) - Back-up protection - Motor protection - Busbar protection (voltage and frequency) - Transformer protection - 3 winding - Interconnection protection - Generator protection - Power management/Load shedding - Installation Manual - REX640 Protection and control - Relion Protection and Control - PCL4 - IEC - ANSI - 16.02.2023

REX640 Installation Manual

Terminal blocks of push-in type are used for electrical connections.

Connect the wire in one of the alternative ways.
  • When using stranded wire without ferrule, push the connector's release button while inserting the wire.
  • When using wire with end ferrule, insert the wire without pushing the release button.
Table 1. Wire specifications for push-in type connectors

Connector type

Wire size

Stripping length

Contact screw tightening torque

Connector fixing screw tightening torque

Stranded

Crimp ferrule

Signal connectors

0.2...2.5 mm² (AWG 24-14)

0.2. 2.5 mm² (AWG 24-14)

10 mm (0.3937 in)

-

0.2 Nm (0.1475 ft-lb)