Priority switch - Load shedding relay 6,7...39A E 452-5,7 A

Priority switch - Load shedding relay 6,7...39A E 452-5,7 A – ABB – 2CDE160010R0901 – 4016779209502: Priority switch E 452-5.7 A, rated voltage 400V, rated current 6.7 ... 39A, response current 3.1 ... 5.3A, max. release delay 20ms, max Contacts as NC contact 1, number of contacts as changeover contact 0, rated current (control contacts) 1A, max. switching voltage (control contacts) 400V, max. switching capacity (control contacts) 230VA, electrical service life (control contacts) 100000 switching cycles, mechanical service life (control contacts) 2000000 switching cycles, max. electrical switching frequency 1800c/h, width in modular widths 1, priority switches are used in installations in which the existing conductor cross-sections or the size of the power supply connection do not allow the simultaneous operation of two powerful consumers (e.g. storage heater and heat exchanger). Priority switches separate 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-time consumer. When the consumer is switched on, the opener of the priority switch disconnects e.g. B. the contactor of the heating system.