GE Energy

5.2Power Connections

The D400 accepts power connections through two terminal blocks on the rear panel:

Terminal block TB1 is reserved for connecting power from one or two external sources to the D400.

Terminal block TB2 provides contact closure outputs for power supply fail and system fail alarms.

Protective Earth

Terminal

Power Supply

Connections

Power Supply

Alarms

Wiring Requirements

The supply wiring for the D400 must be a minimum of 18 AWG (0.79 mm²), 3-conductor cable with an external insulation jacket, and a minimum certified voltage rating of 600 V.

The protective conductor must be minimum 16 AWG (1.3 mm²) wire with (green-&-yellow) insulation. Recommended conductor size is 12 AWG.

The wires must be terminated with an insulated #6 Forked Terminal.

The clear plastic protective barrier provided with the terminal strip connector must be in place once wiring of the mains is completed.

D400 Substation Data Manager User's Manual 65

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GE 994-0089 user manual Power Connections, Wiring Requirements