ANSI/NEMA AB 4:2009
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Guidelines for Inspection and Preventive Maintenance of Molded Case Circuit Breakers Used in Commercial and Industrial Applications
Available format(s)
Hardcopy , PDF
Language(s)
English
Published date
30-03-2011
Superseded date
23-02-2026
Superseded by
€133.35
Excluding VAT
NEMA Standards Publication AB 4 sets forth, for use by qualified personnel, a number of basic procedures that may be used for the inspection and preventive maintenance of molded case circuit breakers used in industrial and commercial applications rated up to and including 1000 V 50/60 Hz AC or AC/DC. Note—consult the manufacturer for DC-only or 400 Hz circuit breakers.
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
National Electrical Manufacturers Association
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
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