Wiring
Table 4-4 One-Way Wire Distance and Wire Size for a 24 Vdc System
Maximum
For 24 Vdc systems
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| Distance in feet (meters)a |
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Amps | 12 AWG | 10 AWG | 8 AWG | 6 AWG | 4 AWG | 3 AWG | 2 AWG | 1 AWG | 1/0 AWG | ||||||
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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) | ||||
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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) | |||
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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) | |||
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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) | ||
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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) | |
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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) | |
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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) |
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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) |
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35 |
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| 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) |
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40 |
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| 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) | |
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45 |
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| 15.6 | (4.76) | 25.0 | (7.62) | 31.4 | (9.58) | 39.8 | (12.14) | 50.0 | (15.24) | 63.0 (19.20) |
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50 |
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| 14.2 | (4.32) | 22.4 | (6.82) | 28.4 | (8.66) | 35.8 | (10.92) | 45.0 | (13.72) | 56.6 (17.26) |
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60 |
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| 12.6 | (3.84) | 18.6 | (5.66) | 23.6 | (7.20) | 29.8 | (9.08) | 37.4 | (11.4) | 47.2 (14.38) |
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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.
Table 4-5 One-Way Wire Distance and Wire Size for a 48 Vdc System
Maximum
For 48 Vdc systems
| Distance in feet (meters) |
| Distance in feet (meters)a |
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Amps | 12 AWG | 10 AWG | 8 AWG | 6 AWG | 4 AWG | 3 AWG | 2 AWG | 1 AWG | 1/0 AWG | |||||
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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) | |
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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) |
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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) |
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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) |
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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) |
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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) |
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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) |
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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) |
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35 |
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| 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) |
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40 |
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| 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) | |
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45 |
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| 62.4 (19.04) | 100.0 | (30.48) | 125.6 | (38.32) | 159.2 | (48.56) | 200.0 | (60.96) | 252.0 | (76.80) |
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50 |
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| 56.8 (17.28) | 89.6 (27.28) | 113.6 (34.64) | 143.2 | (43.68) | 180.0 | (54.88) | 226.4 | (69.04) | ||
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60 |
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| 50.4 (15.36) | 74.4 (22.64) | 94.4 (28.80) | 119.2 (36.32) | 149.6 | (45.60) | 188.8 | (57.52) | |||
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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.
