Derating due to cable length, line voltage, and temperature
The following table shows the values for derating as a function of the cable length, line voltage Vline, and ambient temperature T:
Clock frequency | MCB91A-....-2D1.. | MCB91A-....-5D3.. | ||
|---|---|---|---|---|
0034 | 0042 | 0025 | 0040 | |
Without fan | With fan | Without fan | With fan | |
230 V / ≤ 40 °C | 400 V / ≤ 40 °C | |||
4 kHz | 3.4 A / 75 m | 4.2 A / 75 m | 2.5 A / 50 m | 4 A / 75 m |
8 kHz | 2.5 A / 35 m | 4 A / 50 m | 1.9 A / 12 m | 3.2 A / 50 m |
16 kHz | Not permitted | 3.4 A / 25 m | Not permitted | 1.8 A / 15 m |
230 V / 55 °C | 400 V / 50 °C | 400 V / 55 °C | ||
4 kHz | 2.5 A / 25 m | 3.4 A / 50 m | 1.8 A / 25 m | 2.5 A / 30 m |
8 kHz | 2 A / 10 m | 3.2 A / 25 m | Not permitted | 1.8 A / 15 m |
16 kHz | Not permitted | 2.5 A / 15 m | Not permitted | 1.6 A / 8 m (50 °C) |
266 V / ≤ 40 °C | 266 V / 40 °C | 500 V / 40 °C | ||
4 kHz | 3.4 A / 50 m | 4.2 A / 75 m | Not permitted | 4 A / 50 m |
8 kHz | Not permitted | 4 A / 50 m | Not permitted | 2.5 A / 15 m |
16 kHz | Not permitted | 3.4 A / 25 m | Not permitted | 1.6 A / 8 m |
266 / ≤ 55 °C | 266 V / 55 °C | 500 V / 50 °C | ||
4 kHz | Not permitted | 3.4 A / 25 m | Not permitted | 1.6 A / 15 m |
8 kHz | Not permitted | 3.0 A / 15 m | Not permitted | 1.3 A / 8 m |
16 kHz | Not permitted | 2.5 A / 15 m | Not permitted | 1.1 A / 6 m |
When using unshielded cables, 1.5 times the cable lengths mentioned above are permitted. |
