Rockwell Automation DeviceNet Media Design Installation Guide - Manual (Page 86)

Publication DNET-UM072C-EN-P - July 2004
4-8 Determine Power Requirements
Figure 4.5 Two End-Connected Power Supplies, Round Cable (Thick).
Network
Length
m (ft) Maximum
Current (A)
0 (0)
8.00*
20 (66)
8.00*
40 (131) 8.00*
60 (197) 8.00*
80 (262)
8.00*
100 (328)
8.00*
120 (394) 8.00*
140 (459) 7.68*
160 (525)
6.77*
180 (591)
6.05*
200 (656) 5.47*
220 (722) 4.99*
240 (787)
4.59*
Network
Length
m (ft) Maximum
Current (A)
260 (853) 4.25*
280 (919)
3.96
300 (984)
3.70
320 (1050) 3.48
340 (1115) 3.28
360 (1181)
3.10
380 (1247) 2.94
400 (1312) 2.79
420 (1378) 2.66
440 (1444)
2.55
460 (1509) 2.44
480 (1575) 2.34
500 (1640) 2.25
NEC/CE Code Maximum
Current Limit
∗
Exceeds NEC CL2/CECode 4A limit.
Length of trunk line, meters (feet)
C
ur
ren
t (a
m
per
es
)
41935