GE 994-0089 User Manual

Page of 92
 GE 
Energy 
 
D400 Substation Data Manager User's Manual  
65
 
5.2 Power 
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. 
 
 
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. 
Protective Earth
Terminal
Power Supply
 Connections
Power Supply
 Alarms