Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual User Manual

Page 162

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Publication 1797-6.5.6 - June 2005

33-4 1797-PS1N FLEX Ex Power Supply

The wiring contained within the nonintrinsically safe wiring compartment

and the intrinsically safe wiring compartment shall be separated from each
other. Care must be taken to guarantee the separation of nonintrinsically safe
and intrinsically safe wiring. The partitions within the power supply provide
the necessary isolation for the electronics and the wiring, however, extreme
care must be taken to guarantee wires are contained within their appropriate
compartment and cannot contact any of the electronics.

WARNING: Substitution of components may impair intrinsic safety.

AVERTISSEMENT: La substitution de composant peut compromettre la
securite intrinseque.

Cable must be rated at a minimum of 100

°

C.

WARNING: Keep cover tightly closed when circuits are live.

After disconnecting power supply, wait fifteen minutes before removing

cover.

No live maintenance.

The ambient temperature (T

amb

) for this product is -20°C to 70°C.

Feed through power connection for 1797-PS1N.

11

12

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