9 Cable Diameter (48 VDC) and Transmission
Distance
The recommended transmission distances are for reference only, and the actual conditions shall
prevail. The following table shows the maximum transmission distance of cables with certain
diameter when the 48 VDC power source voltage loss rate is below 25%.
For devices powered by direct current, the maximum voltage loss rate allowed is 25%.
In the following table, the unit for diameter is mm, and the unit for transmission distance is foot (m).
Table 9-1 Cable diameter (48 VDC) and transmission distance
Transmission
Power (W)
Transmission
Distance
(Diameter: 0.80)
Transmission
Distance
(Diameter: 1.00)
Transmission
Distance
(Diameter: 1.25)
Transmission
Distance
(Diameter: 2.00)
5 3257 (993) 5089 (1551) 7951 (2424) 20355 (6204)
10 1628 (496) 2544 (776) 3976 (1212) 10177 (3102)
15 1086 (331) 1696 (517) 2650 (808) 6785 (2068)
20 814 (248) 1272 (388) 1988 (606) 5089 (1551)
25 651 (199) 1018 (310) 1590 (485) 4071 (1241)
30 543 (165) 848 (259) 1325 (404) 3392 (1034)
35 465 (142) 727 (222) 1136 (346) 2908 (886)
40 407 (124) 636 (194) 994 (303) 2544 (776)
45 362 (110) 565 (172) 883 (269) 2262 (689)
50 326 (99) 509 (155) 795 (242) 2035 (620)
55 296 (90) 463 (141) 723 (220) 1850 (564)
60 271 (83) 424 (129) 663 (202) 1696 (517)
65 251 (76) 391 (119) 612 (186) 1566 (477)
70 233 (71) 363 (111) 568 (173) 1454 (443)
75 217 (66) 339 (103) 530 (162) 1357 (414)
80 204 (62) 318 (97) 497 (151) 1272 (388)
85 192 (58) 299 (91) 468 (143) 1197 (365)
90 181 (55) 283 (86) 442 (135) 1131 (345)
95 171 (52) 268 (82) 418 (128) 1071 (327)
100 163 (50) 254 (78) 398 (121) 1018 (310)
110 148 (45) 231 (71) 361 (110) 925 (282)
120 136 (41) 212 (65) 331 (101) 848 (259)
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