Menu
Short-circuit proof, „intrinsically safe“ resistor for use in inverters (brake transistors) in an aluminum case, IP54 protection class.
Contact
Michael Koch GmbH
Phone: +49 7251 96 26-200
| Parameter | Symbol | Value | Unit | Conditions |
|---|---|---|---|---|
| Tolerance (resistance) | ± 10 | % | Room temperature | |
| Insulation resistance | RISO | ≥ 100 | MΩ | Umess = 1,000 VDC |
| Inductance | L | ≤ 30 | µH | f = 300 kHz, Umess = 50 mV |
| Capacity against enclosure | C | ≤ 500 | pF | f = 300 kHz, Umess = 50 mV |
| Thermal time constant | 𝜏 | approx. 400 | s | Enclosure AWD300xxx |
| 𝜏 | approx. 1,000 | s | Cooling phase free in air | |
| Weight | m | 300 | g | |
| Energy absorption | Q | 4,5 | kJ | with 1.2 s (1% duty cycle) |
| 8,3 | kJ | with 7.2 s (6% duty cycle) | ||
| Maximum permissible operating voltage | UB | ≤ 700 AC | V | Taking into consideration the „intrinsic safety“ |
| UB | ≤ 1,000 DC | V | Taking into consideration the „intrinsic safety“ | |
| Isolation voltage | Uiso | ≥ 2,500 AC | V | f = 50 Hz; t = 1 s |
| Max. permissible case temp. | ϑc | ≤ 180 | °C | unobstructed convection |
| Storage temperature | ϑs | -25 … +85 | °C |
Dimensions and mounting holes (mm)
