Catalogs >
Fr. Sauter AG >
ESL: Electronic power control unit

ESL: Electronic power control unit
3Pages

Catalog excerpts

Product data sheet ESL: Electronic power control unit Improving energy efficiency The output signal (pause pulse) ensures that despite continuous controlling, the system is highly effective Features • Output controlling in electric auxiliary heating systems, electric heating elements in heating coils, fan coil units, etc., and heating elements for domestic hot water preparation • Suitable for consumer loads that are controlled via one, two or three phases • Y and Δ circuits are possible • Analogue inputs for active standard signals of 0/2...10 V or 0/4...20 mA • LED indicator Technical data Power supply Power supply Tolerance in power supply Power consumption Inputs/Outputs 0/4...20 mA, Ri < 170 kΩ Min. nominal current Admissible ambient temperature Admissible ambient humidity Storage and transport temperature Ambient conditions Construction Fitting In cabinet, on top-hat rail as per EN 60715 Protection class Over-voltage categories Switch rating Nominal current Single phase double phase Y, ∆ circuit ∆ circuit 19.0 kW Single phase double phase Y, ∆ circuit ∆ circuit Right of amendment reserved

Open the catalog to page 1

Product data sheet Description of operation The ESL power control unit has a characteristic E = f(y). Various positioning signals (0/2…10 V; 0/4… 20mA) can be used here. With the ESL, the heating output is controlled quasi-continuously, i.e. the heating coil is switched on/off in pulses. The control part and the output part are electrically isolated using an opto-coupler. The circuit-breaker is a Triac. The switching time is triggered by the zero crossing of the sine wave voltage. This prevents radio interference. If the output signal is activated, this is indicated by an LED. If the...

Open the catalog to page 2