Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 232)

Publication 1797-6.5.6 - June 2005
51-2 1797-PS1N FLEX Ex Power Supply
Intrinsically Safe
Specifications For a full list of specifications, refer to FLEX Ex Power Supplies Installation
Instructions, publication 1797-5.34.
FM I/O Entity Parameters Wiring Methods
• Wiring method 1 - Each channel is wired separately.
• Wiring method 2 - Multiple channels in one cable, providing each
channel is separated in accordance with the National Electric Code
(NEC).
Table 1: Entity Values for Field Device Connections
Specifications 1797-PS1N
Voltage Range 85-250V ac or 120-250V dc
Operational Temperature -20 to 70 o C (-4 to 158 o F)
Agency Certification Mounting - Class I Division 1 Groups B-D T4
IS Power - Class I Division 1 Groups A-D T4
Class I Zone 1 AEx [ib] IIC
Certificates FM Certificate Number 3009806
ATTENTION
Once power has been applied, wait 15 minutes after
disconnecting before opening cover.
FM
Wiring
Method
Channel Terminals V
oc
(V)
I
sc
(A)
Groups C
a
(
µF)
L
a
(
µH)
1 and 2 Any one
channel
e.g. ch1
10(+), 11(-) 9.5 1.0 A, B 0.5 8
C, E 1.5 24
D, F, G 4.0 64