42 Operation principle and hardware description
Marine construction (option +C121)
The option includes the following accessories and features:
• reinforced mechanics
• grab railings
• door flush bolt which allows the door to open 90 degrees and prevents it from
slamming close
• self-extinctive materials
• flat bars at base of the cabinet for fastening
• fastening braces at the top of the cabinet.
Required options: Appropriate additional wire marking option (see page 45) according to
the requirements of the classification society
Related options: halogen-free materials and wiring (+G330)
UL listed (option +C129)
The option includes factory inspection of the cabinet according to UL 508C and the
following accessories and features:
• US type main switch and fuses
• top entry and exit of cables
• US cable conduit entry (plain plate without ready-made holes)
• all components UL Listed/Recognized
• maximum supply voltage 600 V.
Related options: +H350 (bottom entry of cables), +H352 (bottom exit of cables) and
+H358 (cable conduit entry)
The option is not available with +C121 (marine construction) or +E206 (sine output filter).
CSA approved (option +C134)
The option includes the following accessories and features:
• US/CSA type main switch fuse
• bottom entry and exit of cables
• US cable conduit entry (plain plate without ready-made holes)
• all components UL/CSA listed/recognized
• maximum supply voltage 600 V.
The option is not available with +C121 (marine construction) or +E206 (sine output filter).
Plinth height (options +C164 and +C179)
The standard height of the cabinet plinth is 50 mm. These options specify a plinth height of
100 mm (+C164) or 200 mm (+C179).
Seismic design (option +C180)
This option involves seismic capability according to International building code 2012, test
procedure ICC-ES AC-156. The installation level must not exceed 25% of the height of the
building, and SDS (installation site specific spectral acceleration response) must not
exceed 2.0 g.
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