Additional markingsOption
Equipment pin identifiers are marked with printing (or equivalent) on conductors that connect
to equipment, or are part of the wiring between power modules. (Short, obvious connections,
main circuit conductors, and conductors going to terminal blocks or plug-type connectors are
not marked.)
+G338
(class A1)
Equipment pin identifiers are marked with printing (or equivalent) on conductors that connect
to equipment or terminal blocks, or are part of the wiring between power modules. Main circuit
conductors are marked with white tape or printing. (Short, obvious connections, or conductors
going to plug-type connectors are not marked.)
+G339
(class A2)
Equipment pin identifiers are marked with snap-on markers (or equivalent) on conductors that
connect to equipment, terminal blocks or detachable plug-type connectors, or are part of the
wiring between power modules. Plug-type connector identifications are marked on labels near
the connectors. The label holders are attached around conductor bundles. Main circuit con-
ductors are marked with white tape or printing. (Short, obvious connections are not marked.)
+G340
(class A3)
Equipment designations and pin identifiers are marked with snap-on markers (or equivalent)
on conductors that connect to equipment, terminal blocks or detachable plug-type connectors,
or are part of the wiring between power modules. Fiber optic cables are marked in the same
way. Plug-type connector identifications are marked on labels near the connectors. The label
holders are attached around conductor bundles. Main circuit conductors are marked with white
tape or printing. Short and obvious connections are marked with printing (or equivalent) only.
+G341
(class B1)
Note:
Even wires with equipment and pin identifiers printed on the wire insulation are marked with
rings or tubing.
42 Operation principle and hardware description