Technical Information
Preces stāvoklis |
Jauns |
Ražotāja nosaukums |
E452-5.7A Priority Switch |
Zīmols |
ABB
|
Kategorijas |
Releji
|
Harmonizētās sistēmas kods |
8536 4900 00
|
Iepakojuma informācija
Iepakojuma līmenis 1 |
4016779209502 |
Iepakojuma līmenis 2 |
4016779209502, 4016779209502 |
Lejupielādes
Apraksts
Priority switches are used in installations where existing conductor cross-sections or the size of the power supply connection do not permit simultaneous operation of two powerful consumers (e.g. storage heater and heat exchanger). Priority switches disconnect the long-term consumer (storage heater) as long as the short-term consumer (heat exchanger) is switched on. The current coil of the priority switch is connected in series with the short-term consumer. When the consumer is switched on, the contact of the priority switch disconnects e.g. the contactor of the heating system.