500Watt 65 Ohm Porcelain Tube Resistor Wirewound With Wire Wound For Servo
The 500W corrugated ceramic tube wound resistor is specially designed for high-power applications and can operate for a long time at a power level of 500W, meeting the high-load demands of industrial automation, energy management and other scenarios.
Application scenarios
High-power energy-saving equipment
Industrial automation control
Energy and power industry
| Characteristics | Standards | Test methods |
| Resistance and Resistance tolerance | Resistance tolerance ±5% (J) | / |
| Temperature coefficient | ±300ppm | Test the resistance value at normal temperature and normal temperature added 100℃,calculate per℃ resistance value change rate . |
| Power rating load | △R/R≦± (1%＋0.05Ω) temperature 350℃ Max. | the power rating is applied to the resistor kept horizontally for 30 min. |
| Short-time overload | △R/R≦± (2%+0.05Ω) | At 10× rated voltage for 5 seconds. |
| Insulation resistance | ≥100MΩ | DC500V |
| Dielectric withstanding voltage | Without damage by flash-over, fire. or breakdown, etc. | ≥AC2000V,60(sec.) |
| Terminal strength | no evidence of mechanical damage | Tension: 196N, 30±5 seconds |
| Resistor strength | no evidence of mechanical damage | 294N, 30±5 seconds |
| Heat resistance | △R/R≦± (1%+0.05Ω) | Immerge into 375±10℃ tin stove for 2~3 seconds. |
| Thermal shock | △R/R≦± (2%+0.05Ω) | -55℃/30min(min.)→+25℃/15min(min.)→+125℃/30min(min.)→+2515min(min). A total of 5 cycles total 5 cycles. |
| Power rating load | △R/R≦± (5%+0.05Ω) | Overload rated voltage or Max.working voltage (get the lower) for 1000 hours (1.5 hours on and half-hour off ) at the 40±2℃ and
90~95% relative humidity. |
| Load life in heat | △R/R≦± (5%+0.05Ω) | Overload rated voltage or Max.working voltage (get the lower ) for 1000 hours (1.5 hours on and half-hour off) at the 70±2℃. |
Porcelain tube winding resistor
Inverter, brake equipment, servo
