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No.
Symbol
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Approved Standards
Description
IEC60417
Direct current
No.5031
To indicate on the rating plate that the
equipment is suitable for direct current
only; to identify relevant terminals.
IEC60417
Class II equipment
No.5172
To identify equipment meeting the safety
requirements specified for Class II
equipment according to IEC 61140.
ISO 3864
General prohibition
To identify actions or operations that are
prohibited.
ISO 3864
Contact prohibition
To indicate injury that could occur due to
touching a specific part of the equipment.
—
Never look into the optical lens while the
projector is on.
—
To indicate that the marked item don't
place anything on projector.
ISO3864
Caution, laser radiation
IEC60825-1
To indicate the equipment has a laser
radiation part.
ISO 3864
Disassembly prohibition
To indicate a risk of injury, such as
electric shock, if the equipment is
disassembled.
250
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