3.5.6 Connecting incoming mains and protective earth to the controller
Introduction
Note
How to manufacture a cable with connector is described in section Fitting the
connector for incoming mains on page 82.
DANGER
A residual current device (RCD) must be installed. See Residual current on
page 41.
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.
Prerequisites
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 86.
• The cabinet must be connected to protective earth. See Connection of
protective earth on page 85.
• A residual current device (RCD) must be installed. See Residual current on
page 41.
Continues on next page
84 Product manual - OmniCore V250XT Type B
3HAC087112-001 Revision: A
© Copyright 2023-2023 ABB. All rights reserved.
3 Installation and commissioning
3.5.6 Connecting incoming mains and protective earth to the controller
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