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ML0035 September 27, 2017 Copyright 2017 Bitronics, LLC
Definitions:
Enclosure Category 2: Enclosures where no pressure difference relative to the
surrounding air is present.
Installation Category II (Overvoltage Category II) or CAT II: Equipment is intended
for connection to the fixed installation of a building. The power supply to the electronic
equipment is separated from other circuits, usually by a dedicated transformer for the
mains power supply.
Measurement/Installation Category III (Overvoltage Category III) or CAT III:
Distribution Level, fixed installation, with smaller transient overvoltages than those at
the primary supply level, overhead lines, cable systems, etc.
Pollution: Any degree of foreign matter, solid, liquid, or gaseous that can result in a
reduction of electric strength or surface resistivity of the insulation.
Pollution Degree 2: Only non-conductive pollution occurs except that occasionally a
temporary conductivity caused by condensation is to be expected.
1.4 Standards and Certifications
1.4.1 Revenue
The M650 family of meters exceeds the accuracy requirements of ANSI C12.20 and
IEC 60687 (or IEC62053-22).
T
pe Nominal Current Certification
B3, M3 1A, 5A
ANSI C12.20, 0.2CA
IEC 62053-22, 0,2S
IEC 62053-23, 2S
Reactive
The M650 meters were tested for compliance with the accuracy portions of the
standards only. The form factor of the M650 meters differs from the physical
construction of revenue meters specified by the ANSI/IEC standards and no attempt
has been made to comply with the standards in whole. Contact customer service for
more information.
1.5 Environment
UL/CSA Recognized, File Number E164178
UL61010-1, Edition 3, Issue Date 2012/05/11
Safety Requirements for Electrical Equipment for Measurement, Control, and
Laboratory Use – Part 1: General Requirements
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