3.5.5 Connecting incoming mains and protective earth to the controller
Note
How to manufacture a cable with connector is described in section Fitting the
connector for incoming mains on page 75.
DANGER
A residual current device (RCD) must be installed. See Residual current on
page 40.
Note
The controller must be installed towards a 3-phase grounded Wye electrical
configurations. The use of three phase power with delta connection voids
warranty.
Note
For UL installations, the integral solid state short circuit protection does not
provide branch circuit protection. Branch circuit protection must be provided in
accordance with the Manufacturer Instructions, National Electrical Code and any
additional local codes.
Introduction
Before incoming mains is connected to the controller, the following prerequisites
must be fulfilled:
• An external circuit breaker or fuse must be installed. See Line fusing on
page 79.
• The cabinet must be connected to protective earth. See Connection of
protective earth on page 78.
• A residual current device (RCD) must be installed. See Residual current on
page 40.
Location of incoming mains connection
xx2100001260
Continues on next page
Product manual - OmniCore V250XT 77
3HAC073447-001 Revision: B
© Copyright 2020-2022 ABB. All rights reserved.
3 Installation and commissioning
3.5.5 Connecting incoming mains and protective earth to the controller
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