Rockwell Automation DeviceNet Media Design Installation Guide - Manual (Page 83)

Publication DNET-UM072C-EN-P - July 2004
Determine Power Requirements 4-5
Figure 4.2 One Power Supply (End Segment) KwikLink Cable (Flat). Assumes all
nodes are at the opposite end of the cable from the power supply.
C
ur
rent
(a
mper
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.
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