Kabelquerschnitte und Absicherung / Cable Sizes and Fuses | ||
Last/Load - (400VAC Dreiphasen/Three Phase) (kVA) |
Sicherung/Fuse (A) | Kabel/Cable (IEC 60950) (qmm) |
10 | 3 x 20 | 5 x 2.5 |
15 | 3 x 25 | 5 x 4 |
20 | 3 x 40 | 5 x 6 |
30 | 3 x 63 | 5 x 10 |
40 | 3 x 80 | 5 x 25 |
Dauerstrombelastung Cu- Leitungen / Größe der Absicherung (Ampere) | ||||||||
max. Current Load for Cu Cables / needed Fuse (Ampere) | ||||||||
max. Temperature 30°C / Reduction Factor 0.71 for 45°C (Rubber Insulation) | ||||||||
  | Installation inside Pipes | Single Conductor Installation in Installation Racks | Multi-Conductor open PVC Cable | Single Conductor on Isolator | ||||
Conductors: | 2 | 3 | 4 | 2 | 3 | 4 | 3 | 2 to 4 |
qmm |   |   |   |   |   |   |   |   |
0.5 | 6.5 | 6 | - | 7.5 | 6.5 | 6 | - | - |
0.75 | 10 | 8 | - | 10 | 10 | 8 | - | - |
1 | 10 | 8 | 8 | 12 | 10 | 8 | - | 12 |
1.5 | 12 | 12 | 10 | 16 | 12 | 12 | 12 | 16 |
2.5 | 20 | 16 | 16 | 20 | 20 | 16 | 20 | 25 |
4 | 25 | 20 | 20 | 25 | 25 | 20 | 25 | 32 |
6 | 32 | 32 | 25 | 40 | 32 | 32 | 32 | 40 |
10 | 50 | 40 | 40 | 50 | 50 | 40 | 50 | 63 |
16 | 63 | 63 | 50 | 63 | 63 | 63 | 63 | 80 |
25 | 80 | 80 | 63 | 100 | 80 | 80 | 80 | 100 |
35 | 100 | 100 | 80 | 125 | 100 | 100 | 100 | 125 |
50 | 125 | 100 | - | 125 | 125 | 100 | - | 160 |
70 | 160 | 125 | - | 160 | 160 | 125 | - | 200 |
95 | 200 | 160 | - | 200 | 200 | 160 | - | 250 |
Reduction Factor for several Multi-Conductor Cables in the same Pipe: | ||||||
Number of Cables in the Pipe | 2 | 4 | 8 | 12 | 16 | 20 |
Reduction of the max. Current by: | 0.8 | 0.65 | 0.52 | 0.45 | 0.41 | 0.38 |
US National Electrical Code | ||
maximum Amperage | ||
AWG Wire Size | Two Current Carrying Conductors | Three Current Carrying Conductors |
  | Ampere | Ampere |
18 | 7 | 10 |
16 | 10 | 13 |
14 | 15 | 18 |
12 | 20 | 25 |
10 | 25 | 30 |
8 | 35 | 40 |
6 | 45 | 55 |
4 | 60 | 70 |
2 | 80 | 95 |
Amperage for Power Extension Cords | |
(always uncoil the cord completely under oreration) | |
14 / 3 AWG Cable | |
Length | Amperage |
50' | 15 A |
100' | 13 A |
150' | 8 A |
200' | 6 A |
250' | 5 A |
300' | 4 A |
12 / 3 AWG Cable | |
Length | Amperage |
50' | 15 A |
100' | 15 A |
150' | 13 A |
200' | 10 A |
250' | 7 A |
300' | 6 A |
10 / 3 AWG Cable | |
Length | Amperage |
50' | 15 A |
100' | 15 A |
150' | 15 A |
200' | 15 A |
250' | 13 A |
300' | 10 A |
AWG / Amperage and Connectors | ||
AWG | max. Amperage | Connector |
0000 (4/0) | 300 A | CamLock |
000 (3/0) | 260 A | CamLock |
00 (2/0) | 225 A | CamLock |
0 (1/0) | 195 A | CamLock |
2 | 125 A | C-Way (50') |
4 | 90 A | C-Way (50') |
6 | 70 A | Joy&Cabtire (25'&50') |
8 | 50 A | Joy&Cabtire (25'&50') |
10 | 30 A | Joy&Cabtire (25'&50') |
12 | 20 A | A.C. Wire (25'&50') |
14 | 15 A | A.C. Wire (25'&50') |
16 | 10 A | A.C. Wire |
Square | max. Current |
0.5 mm² | 10.6 A |
0.75 mm² | 7.8 A |
1 mm² | 13.5 A |
1.5 mm² | 17 A |
2.5 mm² | 22.7 A |
4 mm² | 29.8 A |
6 mm² | 38.3 A |
AWG | wire square in mm2 | max. cable length in meter |
20 | 0,56 | 5,00 |
22 | 0,34 | 3,33 |
24 | 0,22 | 2,08 |
26 | 0,14 | 1,31 |
28 | 0,09 | 0,81 |