Schweitzer Engineering Laboratories SEL-749M, Instruction Manual

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Date Code 20080918 Instruction Manual SEL-749M Relay
Preface
Safety and General Information
Safety and General Information
This manual uses three kinds of hazard statements, formatted as follows:
Symbols
The following symbols from EN 61010-1 are often marked on SEL products.
Hazardous Locations
Approvals
The SEL-749M 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° to +70°C temperature range.
To comply with the requirements of the European ATEX standard for
hazardous locations, the SEL-749M 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 following figure shows the compliance label that is located on the left side
of the device.
Indicates a potentially hazardous
situation that, if not avoided, may
result in minor or moderate injury or
equipment damage.
!
CAUTION
Indicates an imminently hazardous
situation that, if not avoided,
will result
in death or serious injury.
!
DANGER
Indicates a potentially hazardous
situation that, if not avoided,
could
result in death or serious injury.
!
WARNING
Symbol 14 Caution, Risk of Danger—Consult Documentation for
Additional Information
Symbol 6 Protective (Safety) Ground Conductor Terminal
Symbol 1 Direct Current
Symbol 2 Alternating Current
Symbol 3 Direct and Alternating Current
Symbol 5 Earth (Ground) Terminal
Courtesy of NationalSwitchgear.com