Sel 751A - Safety and General Information; Symbols

v
Date Code 20100129 Instruction Manual SEL-751A Relay
Preface
Safety and General Information
Examples
This instruction manual uses several example illustrations and instructions to
explain how to effectively operate the SEL-751A. These examples are for
demonstration purposes only; the firmware identification information or
settings values included in these examples may not necessarily match those in
the current version of your SEL-751A.
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.
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
!