FLEX Ex 85-253V AC In/Quad-Ex DC Out Power Supply
3
Publication
1797-5.33 - December 2003
About the Power Supply
The power supply is an essential component in the operation of an
intrinsically safe system. It must isolate the unsafe incoming power from the
control system and limit the available energy to IS-safe levels.
No other power source is needed to operate any components attached to the
FLEX Ex
TM
system in the hazardous area. Power for valves, actuators, or
transmitters come from the FLEX Ex modules.
•
The 1797-PS1E is a 85-253V ac in/quad-Ex dc out power supply in a
flame-proof enclosure with increased safety input/output
terminations. The 85-253V ac glan is an M20 x 1,5 and can accept a
cable from 6mm to 12mm in diameter. The Ex outputs are M16 x 1,5
and can accept a cable from 4mm to 8mm in diameter.
Features include:
•
85-253V ac supply source
•
four channels, 8.5W output each channel
•
outputs are IS galvanically isolated from the source
•
all channels are independently IS limited
ATTENTION
This equipment is considered Group 1, Class A industrial
equipment according to IEC/CISPR Publication 11. Without
appropriate precautions, there may be potential difficulties
ensuring electromagnetic compatibility in other environments
due to conducted as well as radiated disturbance.
This equipment is supplied as "enclosed" equipment. It should
not require additional system enclosure when used in locations
consistent with the enclosure type ratings stated in the
Specifications section of this publication. Subsequent sections of
this publication may contain additional information regarding
specific enclosure type ratings, beyond what this product
provides, that are required to comply with certain product safety
certifications.
Allen-Bradley Drives