Approved as an American National Standard
ANSI Approval Date: June 14, 2010
ANSI/NEMA PB 1.1-2007
General Instructions for
Proper Installation, Operation, and Maintenance
of Panelboards Rated 600 Volts or Less
Published by
National Electrical Manufacturers Association
1300 North 17th Street
Rosslyn, Virginia 22209
www.nema.org
© Copyright 2007 by the National Electrical Manufacturers Association. All rights including translation into
other languages, reserved under the Universal Copyright Convention, the Berne Convention for the
Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions.