Rockwell Automation 1797-PS1N FLEX Ex 85-250V AC In/Quad-Ex DC Out Power Supply - Manual (Page 13)

FLEX Ex 85…250V ac In/Quad-Ex dc Out Power Supply 13
Publication 1797-5.34 - September 2011
 The entity concept allows interconnection of intrinsically safe apparatus
with associated apparatus not specifically examined in combination as a
system when the approved values of V
oc
and I
sc
of the associated apparatus are
less than or equal to V
max
and I
max
of the intrinsically safe apparatus and the
approved values of C
a
and L
a
of the associated apparatus are greater than C
i
+
C
cable
and L
i
+ L
cable
respectively for the intrinsically safe apparatus.
 Wiring methods must be in accordance with the NEC, ANSI/NFPA 70,
Article 504 or the CEC CSA C22.1, Part 1, Appendix F. For additional
information refer to ANSI/ISA RP12.6.
 Wiring methods must be in accordance with the NEC, ANSI/NFPA 70,
Article 501 or the CEC CSA C22.1, Part 1, Section 18.
1 and 2 Any one
channel (for
example, ch1)
11(+), 10(-) 9.5 1.0 A, B, IIC 0.5 8
C, E, IIB 1.5 32
D, F, G, IIA 4.0 64
11 11
Nonhazardous
Location
V ac To Next Power
Supply 1797-PS1N
Input
Power
Nonintrinsically
Safe Wiring
Intrinsically Safe
Wiring
   

To any IS device
with entity
concept
parameters  of
(V
max
, I
max
, C
i
, L
i
)
appropriate for
connection to
associated
apparatus with
entity concept
parameters listed
in Table 4.
43307
Hazardous (Classified)
Location
1797-PS1N
Class I, Division 1, Groups
   
