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德国原装沙尔特宝SCHALTBAU直流接触器 CH500-CH800
产地：德国 适用电压3KV DC/1.5KV AC
此类单极高压接触器设计用于50 KW标称负载（交流和直流）。适用于作为电源中的主接触器，或作为暖通空调设备中电阻群的控制接触器。双断触头确保安全断电。在所附的电弧罩中实现电弧抑制。
| Type of voltage | DC, AC |
| Contact configuration | 1 x NO |
| Nominal voltage Un | 3 kV DC/AC |
| Rated insulation voltage Ui | 5 kV |
| Rated impulse withstand voltage Uimp | 25 kV |
| Test voltage at 50 Hz for 10 s | 12.5 kV |
| Conv. thermal current Ith | 80 A |
| Rated switching capacity atU = 3,000 V DC | 30 A L/R = 1 ms |
| Rated switching capacity atU = 3,000 V AC 50 Hz | 30 A cos φ = 1.0 |
| Rated switching capacity atU = 1,500 V AC 50 Hz | 50 A cos φ = 1.0 |
| Switching cycles per hour(under rated load) | 30/h |
| Max. breaking capacity atU = 4,000 V DC | 80 A L/R = 0 ms |
| Max. breaking capacity atU = 4,000 V AC 50 Hz | 130 A cos φ = 1.0 |
| Maximum making capacity (resistive load) | 250 A |
| Dynamic limiting current | 1200 A |
| Aux. contact | CH800: 1 x SPDT, CH801: 2 x SPDT |
| Coil voltage Us | 24, 36, 48, 50, 54, 72, 110, 120 V DC |
| Coil tolerance % Us | -30% ... +25% |
| IP rating (IEC 60529) | IP00 |
| Mechanical endurance | 1 million operating cycles |
| Temperature range | -25 °C ... +70 °C |
| Weight (g) | approx. 5,000 |
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