B.4 Electrical and handling symbols
B.4.1 Electrical symbols
The following electrical symbols and their associated statements can appear in instrument
manuals and on an instrument’s front or rear panels.
Symbol
Description
Electrical power on
Electrical power off
Standby
Direct current
Alternating current
Alternating current (3 phase)
Safety ground
Frame or chassis terminal connection
Fuse
Functional ground
Input
Output
B.4.2 Handling symbols
The following handling symbols and their associated statements can appear on labels affixed to
the packaging in which instruments, devices, and component parts are shipped.
Symbol
Description
Keep upright!
April 4, 2018, 715005704 Rev. A
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