6 SLC 500™ Fixed Hardware Style Controllers
Publication 1747-IN008B-MU-P
Safety Considerations
High Voltages -
SLC 500 Fixed Hardware Style Controller (Series C)
(Applies to 1747-L20A, -L30A, -L40A, -L20C, -L30C, and -L40C
controllers)
For general recommendations concerning installation safety requirements and safety
related work practices, refer to the requirements specific to your region.
• Europe: Reference the standards found in EN 60204 and your national
regulations.
• United States: Refer to NFPA 70E, Electrical Safety Requirements for Employee
Workplaces.
!
ATTENTION
The printed circuit board, located under the front cover of Series
C fixed hardware style controllers, has high voltages (120V ac
and 240V ac) available at certain points when the controller is
powered up. If the front cover is removed, exercise extreme care
and consider all points on the circuit board to be electrically
hazardous. Whenever possible, turn off power to the controller
before removing the cover.
Do not remove the protective insulation covering the circuit
board. If the insulation is missing, do not touch any portion of
the circuit board. Failure to heed this warning may result in
personal injury or death.
Front Cover
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