NEC Active Upgrade Express5800/320Fc, Site Planning Manual

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Circuit Wiring Diagrams
Electrical Circuit and Wiring Information B-3
Circuit Wiring Diagrams
The following circuit wiring diagrams show how the hot, ground, and/or neutral AC
signals should be connected to the system’s power input plug:
•
Figure B-3 illustrates a single-phase 120-volts AC circuit connection.
•
Figure B-4 illustrates a single-phase 240-volts AC circuit connection.
•
Figure B-5 illustrates a split-phase 120/240-volts AC circuit connection.
•
Figure B-6 illustrates a three-phase 208-volts AC, Y-, or
∆
-source circuit
connection, phase-to-neutral.
•
Figure B-7 illustrates a three-phase 208-volts AC, Y-, or
∆
-source circuit
connection, phase-to-phase.
•
Figure B-8 illustrates a three-phase 380V AC, Y-, or
∆
-source circuit connection,
phase-to-neutral.
In the diagrams in this appendix, the power inputs for an Express5800/320 Fc
system are labeled X and Y, as shown in Figure B-2 , to eliminate any ambiguities
in the nomenclature. For single-phase applications, the X input is connected to the
L (Line)
hot input, and the Y input is connected to the N (Neutral) input. However,
for split-phase or three-phase applications, the X and Y inputs are connected to L1,
L2, or L3 (separate lines). Therefore, for split-phase or three-phase applications,
both X and Y can be electrically hot with respect to the system base (earth reference
ground).
Figure B-2 shows the physical locations of the X and Y inputs on the
system base.
Figure B-2. Power Input Labeling
Power input A or B (Face View)
X
G (PE)
Y