Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 164)

Publication 1797-6.5.6 - June 2005
34-2 1797-PS2N2 FLEX Ex Power Supply
Intrinsically Safe
Specifications For a full list of specifications, refer to FLEX Ex Power Supply Installation
Instructions, publication 1797-5.12.
UL, C-UL 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) or Canadian Electric Code (CEC).
Table 1: Entity Values for Field Device Connections
Specifications 1797-PS2N2
Inset Voltage Range 19 to 32V dc
Operational
Temperature -20 to 70 o C (-4 to 158 o F)
Agency Certification Class I Division 1 Groups A, B, C, D
Class II Division 1 Groups E, F, G
Class III
Certificates UL Certificate Number 99.19699
C US
ATTENTION
Once power has been applied, wait 15 minutes after
disconnecting before opening cover.
Model Wiring
Method
Channel Terminals V
oc
(V)
I
sc
(A)
Groups C
a
(
µF)
L
a
(
µH)
PS2N2 1 and 2 Any one
channel
e.g. ch1
10(+), 11(-) 9.5 1.0 A, B 0.5 8
C, E 1.5 32
D, F, G 4.0 64