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SEL-749M Relay Instruction Manual Date Code 20080918
Preface
Safety and General Information
Product Compliance Label for Hazardous Locations Approval
Environmental
Conditions and
Voltage Information
The following table lists important environmental and voltage information.
This product may be covered by one or
more of the following U.S. Patents:
159-0247
Other U.S. Patents Pending
Foreign Patents Issued and Pending
5,208,545 5,436,784 6,639,413
6,757,146 D493,773
6,744,391
WARNING – EXPLOSION HAZARD –
OPEN CIRCUIT BEFORE
REMOVING COVER.
WARNING - EXPLOSION HAZARD -
SUBSTITUTION OF COMPONENTS
MAY IMPAIR SUITABILITY FOR
CLASS 1, DIVISION 2.
II 3 G
Ex nC IIC 135ºC (T4)
This product complies with:
UL 1604
EN 60079-15
Applicable hazardous locations
(North America), Class 1,
Division 2, Groups A, B, C, D, T4.
CSA C22.2 No. 213
Environmental and Voltage Information
Condition Range/Description
Indoor/outdoor use Indoor
Altitude Up to 2000 m
Temperature
IEC Performance Rating
(per IEC/EN 60068-2-1
and IEC/EN 60068-2-2)
–40° to +85°C
UL/CSA Safety Rating
–40° to +70°C
Relative humidity 5 to 95%
Main supply voltage fluctuations Up to ±10% of nominal voltage
Overvoltage Category II
Pollution Degree 2
Atmospheric pressure 80 to 110 kPa
Courtesy of NationalSwitchgear.com
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