CH715, CH815 – 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 50 A.
The CH715 and CH815 series have been designed for a nominal switching capacity of 16 kW (AC and DC). 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 electric arc is extinguished in the attached electric arc chamber.
Features
Unidirectional switching of up to 3,000 V DC
The DC design boasts blowout magnets which drive the electric arc to the attached arcing chambers.
Switchgear in rail carriages
- Activation contactor of power supply systems
- Main and auxiliary contactor of heat registers in heating and air-conditioning systems
Auxiliary contact for CH815: Snap-action switch with positive opening operation
The design of the CH815 boasts an S800-series snap-action switch which reports the state of the main contacts reliably to the higher-level control system.
Ambient temperatures: –50°C to +70°C
Due to their approval for rail applications, the contactors can also be used in extreme temperatures.
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Specifications
CH715-CH815
| Type of voltage | DC, AC |
| Main contacts, configuration | 1 x NO |
| Nominal voltage Un | 3 kV DC, 1.5 kV AC |
| Rated insulation voltage Ui | 3 kV |
| Test voltage at 50 Hz for 10 s | 10 kV |
| Rated switching capacity atU = 3,000 V DC | 5 A L/R = 1 ms |
| Rated switching capacity atU = 1,500 V AC 50 Hz | 10 A cos φ = 1.0 |
| Switching cycles per hour(under rated load) | 120/h |
| Max. breaking capacity atU = 3,000 V DC | 30 A L/R = 0 ms |
| Conv. thermal current Ith | 50 A |
| Aux. contact | CH815: 1 x SPDT |
| Coil voltage Us | 24, 36, 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 |
| Storage temperature | -40 °C ... +80 °C |
| Weight | approx. 3,300 |
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Contactors
CH715, CH815 – 3 kV contactors