CH500, CH800, CH801 – Contactors up to 3,000 V for rail
Single-pole NO contactors for AC and DC (unidirectional). Rated insulation voltage 3,000 V; conventional thermal current 80 A.
The CH500, CH800 and CH801 series have been designed for a nominal switching capacity of 70 kW. They are used for the activation of power supply systems and as a main and auxiliary contact of heating registers in heating and air-conditioning systems. The guiding bars on the fixed contacts force the electric arc into the arcing chamber during shutdown.
Features
The DC design boasts blowout magnets and guiding bars which drive the electric arc to the attached arcing chambers.
- Activation contactor of power supply systems
- Main and auxiliary contactor of heat registers in heating and air-conditioning systems
The designs of the CH500, CH800 and CH801 series boast one or two S800-series snap-action switches. These report the state of the main contacts reliably to the higher-level control system.
Due to their approval for rail applications, the contactors can also be used in extreme temperatures.
By selecting this option you finish the configuration.
Specifications
| Type of voltage | DC, AC |
| Main contacts, 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 | -30% ... +25% |
| IP rating (IEC 60529) | IP00 |
| Mechanical endurance | 1 million operating cycles |
| Temperature range | -25 °C ... +70 °C |
| Weight | approx. 5,000 |
