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SEL-751A Relay Instruction Manual Date Code 20100129
Preface
Safety and General Information
Hazardous Locations
Approvals
The SEL-751A complies with UL 1604, CSA
22.2 No. 213 and EN 60079-15. In North
America, the relay is approved for Class 1,
Division 2, Groups A, B, C, D, and T4 in the
–40°C to +70°C temperature range.
To comply with the requirements of the
European ATEX standard for hazardous
locations, the SEL-751A must be installed in
an enclosure that meets the requirements of an
Ex n enclosure rated IP54 or better. The
enclosure should be certified to these
requirements or be tested for compliance as
part of the complete assembly.
The figure shows the compliance label that is
located on the left side of the device.
Product Compliance Label
for the SEL-751A
Environmental
Conditions and
Voltage Information
The following table lists important 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
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