FIELD: heating.
SUBSTANCE: invention relates to safety temperature controls for heating devices, namely electric water heaters with a heat accumulator. Thermal protection is performed by on-off bimetallic element (4) that is actuated by means of one or more resistances (6) placed on electronic board (8) of temperature relay (1). Electrical power supply to one or more resistances (6) is performed from a microprocessor of electronic board (8) when achievement of critical safe temperature is recorded by one or more electronic temperature sensors.
EFFECT: creation of a thermal protection device with an on-off bimetallic element the operation of which is sufficiently influenced only by temperature in a controlled zone.
10 cl, 4 dwg
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