Bender B662406, Manual

Page: 30 / 44

30 IP Panels © 2018 Bender Inc. All Rights Reserved
Installation
7. 8 Wiring
7.8.1 General Instructions
This section provides general information for wiring isolated power panels.
After reading this section and ensuring all requirements will be met, locate the
appropriate wiring diagram in Section 7. 9 and make all necessary electrical
connections.
7.8.2 Transformer and Incoming Power Wiring
Isolated power systems require a three-wire incoming power feed (hot/hot/
ground or hot/neutral/ground). Standard building construction wire (THHN or
equivalent) is acceptable.
• Verify the incoming voltage corresponds with the primary voltage (H1/H2)
listed on the transformer nameplate and breaker sub-panel label.
• The incoming power conductors (hot/hot or hot/neutral) are connected
to the line side (L1/L2) terminals of the primary main circuit breaker.
• The incoming ground conductor is terminated to the reference ground
bus in the panel.
• The transformer’s primary leads (H1/H2) are connected to the load side
(H1/H2) of the primary main circuit breaker. For MIX panels, first terminate
the transformer leads to the terminal block located in the backbox.
• The transformer’s secondary leads (X1/X2) are connected to the panel
board lugs (or sub-feed lug if applicable). For MIX panels, first terminate
the transformer leads to the terminal block located in the backbox.
• Using the provided #10-32 grounding screw, terminate the transformer’s
ground lead to the threaded hole labeled “Transformer Grounding Point”
located in the backbox.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR
ARC FLASH
This equipment must only be installed and serviced
by qualified electrical personnel.
Disconnect all power before servicing.
Observe all local, state, and national codes, stand-
ards and regulations when installing this equip-
ment.
Failure to follow these instructions will result in
death or severe injury.
DANGER