Rockwell Automation DeviceNet Media Design Installation Guide - Manual (Page 29)

Publication DNET-UM072C-EN-P - July 2004
Get Started 1-19
A sample curve for a single, end-connected power supply is shown on the next
page.
Figure 1.1 One Power Supply (End Segment) KwikLink Cable (Flat)
C
ur
rent
(a
m
per
es)
Length of trunk line, meters (feet)
NEC/CE Code Maximum
Current Limit
Network
Length
m (ft) Maximum
Current (A)
0 (0)
8.00
*
20 (66)
8.00
*
40 (131)
7.01
*
60 (197)
4.72
*
80 (262) 3.56
100 (328) 2.86
120 (394) 2.39
140 (459) 2.05
160 (525) 1.79
180 (591) 1.60
200 (656) 1.44
Network
Length
m (ft) Maximum
Current (A)
220 (722) 1.31
240 (787) 1.20
260 (853) 1.11
280 (919) 1.03
300 (984) 0.96
320 (1050) 0.90
340 (1115) 0.85
360 (1181) 0.80
380 (1247) 0.76
400 (1312) 0.72
420 (1378) 0.69
∗
Exceeds NEC CL2/CECode 4A limit.
41932
IMPORTANT
This configuration assumes all nodes are at the opposite
end of the cable from the power supply.