Rockwell Automation 1797-PS2E2 FLEX Ex Power Supply - Manual (Page 12)

12 FLEX Ex Power Supply
Publication 1797-5.8 - June 2010
Specifications
Table 1 FLEX Ex Power Supply, cat. no. 1797-PS2E2
Attribute Value
Zone 1 II 2G Ex de [ib] IIC T4 (DMT 02 ATEX E253 X)
Zone 22 II 3D IP54 T90C
Input connectors 24V dc

Terminals 1, 2, 4, 5
Voltage range 18…32V
Input frequency N/A
Current consumption 3.1…1.6 A
Ripple 5% ac
Input power entrance Increased safety
Output connectors Terminals 10…17
Output power 4 x 8.5 W
Inset voltage range 18…32V dc
Voltage U
O
<9.5V
Current I
O
<1 A
C
o
(IIC) <500 nF
L
o
(IIC) <8
H
Max output cable resistance
(both directions) <0.1 
Isolation path

Input power to output power 
Output to output

Galvanic to DIN EN 60079-11

None
Input power 55 W
Power dissipation 21 W
Thermal dissipation 71.67 BTU/hr
Conductors wire size
4 mm 2 (12 gauge) max wire rated at 100 °C (212 °F) or higher

1.2 mm (3/64 in.) insulation max
Dimensions (HxWxD) approx. 140 mm x 174 mm x 280 mm

(5.51 in. x 6.9 in. x 11.0 in.)
Protections class IP 65/NEMA 7B
Weight (approx.) 7.7 kg (17 lb)