Wiring

975-0239-01-01 4–11

Table 4-4One-Way Wire Distance and Wire Size for a 24 Vdc System

Maximum one-way wire distance for a < 3% voltage drop assuming 60 Adc charging current

For 24 Vdc systems

Distance in feet (meters) Distance in feet (meters)a
a.These wire sizes are not approved by UL to be installed in the controller, but may be used external to the controller (using a splicer block) to reduce
voltage drop and improve performance.
Amps 12 AWG 10 AWG 8 AWG 6 AW G 4 AWG 3 AWG 2 AWG 1 AWG 1/0 AWG
10 17.6 (5.36) 28.0 (8.54) 44.4 (13.54) 70.6 (21.52) 112.2 (34.2) 141.8 (43.22) 179.2 (54.62) 225.0 (68.58) 283.4 (86.38)
12 14.6 (4.46) 23.2 (7.08) 37.0 (11.28) 58.8 (17.92) 93.4 (18.46) 118.2 (36.02) 149.2 (45.48) 187.4 (57.12) 236.2 (72.00)
14 12.6 (3.84) 20.0 (6.10) 31.8 (9.70) 50.4 (15.36) 80.2 (24.44) 101.2 (30.84) 128.0 (39.02) 160.8 (49.02) 202.4 (61.70)
16 11.0 (3.36) 17.4 (5.30) 27.8 (8.48) 44.2 (13.48) 70.0 (21.34) 88.6 (27.0) 112.0 (34.14) 140.6 (42.86) 177.2 (54.02)
18 9.8 (2.98) 17.6 (4.76) 24.8 (7.56) 39.2 (11.94) 62.4 (19.02) 78.8 (24.02) 99.6 (30.36) 125.0 (38.10) 157.4 (47.98)
20 8.8 (2.68) 14.0 (4.26) 22.2 (6.76) 35.2 (10.72) 56.0 (17.06) 70.8 (21.58) 89.6 (27.32) 112.4 (34.26) 141.8 (43.20)
25 11.2 (3.42) 17.8 (5.42) 28.2 (8.60) 44.8 (13.66) 56.6 (17.26) 71.6 (21.82) 90.0 (27.44) 113.4 (34.56)
30 9.4 (2.86) 14.8 (4.52) 23.6 (7.20) 37.4 (11.4) 47.2 (14.38) 59.8 (18.22) 75.0 (22.86) 94.4 (28.78)
35 12.8 (3.90) 20.2 (6.16) 32.0 (9.76) 40.4 (12.32) 51.2 (15.6) 64.2 (19.56) 81.0 (24.68)
40 11.2 (3.42) 17.6 (5.36) 28.0 (8.54) 35.4 (10.78) 44.8 (13.66) 56.2 (17.12) 70.8 (24.58)
45 15.6 (4.76) 25.0 (7.62) 31.4 (9.58) 39.8 (12.14) 50.0 (15.24) 63.0 (19.20)
50 14.2 (4.32) 22.4 (6.82) 28.4 (8.66) 35.8 (10.92) 45.0 (13.72) 56.6 (17.26)
60 12.6 (3.84) 18.6 (5.66) 23.6 (7.20) 29.8 (9.08) 37.4 (11.4) 47.2 (14.38)
Table 4-5One-Way Wire Distance and Wire Size for a 48 Vdc System

Maximum one-way wire distance for a < 3% voltage drop assuming 60 Adc charging current

For 48 Vdc systems

Distance in feet (meters) Distance in feet (meters)a
a.These wire sizes are not approved by UL to be installed in the controller, but may be used external to the controller (using a splicer block) to reduce
voltage drop and improve performance.
Amps 12 AWG 10 AWG 8 AWG 6 AWG 4 AWG 3 AWG 2 AWG 1 AWG 1/0 AWG
10 70.4 (21.44) 112.0 (34.16) 177.6 (54.16) 282.4 (86.80) 448.8 (136.8) 567.2 (172.88) 716.8 (218.48) 900.0 (274.32) 1133.6 (345.52)
12 58.4 (17.84) 92.8 (28.32) 148.0 (45.12) 235.2 (71.68) 373.6 (113.84) 472.8 (144.08) 596.8 (181.92) 749.6 (228.48) 944.8 (288.00)
14 50.4 (15.36) 80.0 (24.40) 127.2 (38.8) 201.6 (61.44) 320.8 (97.76) 404.8 (123.36) 512.0 (156.08) 643.2 (196.08) 809.6 (246.80)
16 44.0 (13.44) 69.6 (21.20) 111.2 (33.92) 176.8 (53.92) 280.0 (85.36) 354.4 (108.00) 448.0 (136.56) 562.4 (171.44) 708.8 (216.08)
18 39.2 (11.92) 70.4 (19.04) 99.2 (30.24) 156.8 (47.76) 249.6 (76.08) 315.2 (96.08) 398.4 (121.44) 500.0 (152.40) 629.6 (191.92)
20 35.2 (10.72) 56.0 (17.04) 88.8 (27.04) 140.8 (42.88) 224.0 (68.24) 283.2 (86.32) 358.4 (109.28) 449.6 (137.04) 567.2 (172.80)
25 44.8 (13.68) 71.2 (21.68) 112.8 (34.40) 179.2 (54.64) 226.4 (69.04) 286.4 (87.28) 360.0 (109.76) 453.6 (138.24)
30 37.6 (11.44) 59.2 (18.08) 94.4 (28.80) 149.6 (45.60) 188.8 (57.52) 239.2 (72.88) 300.0 (91.44) 377.6 (115.12)
35 51.2 (15.60) 80.8 (26.64) 128.0 (39.04) 161.6 (49.28) 204.8 (62.40) 256.8 (78.24) 324.0 (98.72)
40 44.8 (13.68) 70.4 (21.44) 112.0 (34.16) 141.6 (43.12) 179.2 (54.64) 224.8 (68.48) 283.2 (86.32)
45 62.4 (19.04) 100.0 (30.48) 125.6 (38.32) 159.2 (48.56) 200.0 (60.96) 252.0 (76.80)
50 56.8 (17.28) 89.6 (27.28) 113.6 (34.64) 143.2 (43.68) 180.0 (54.88) 226.4 (69.04)
60 50.4 (15.36) 74.4 (22.64) 94.4 (28.80) 119.2 (36.32) 149.6 (45.60) 188.8 (57.52)