MAXIMUM CURRENT PROTECTION DEVICE Russian patent published in 2021 - IPC H02H3/08 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering. The device contains a reed switch with switching, closing and opening contacts and a current-carrying bus. The switching contact of the reed switch is connected to the positive pole of the DC operational current source, and the first and second intermediate relays with windings are connected to the negative pole. The device also contains the first and second time relays, the first, second and third indicator relays, the opening contact of the second intermediate relay and the circuit of disconnecting the switch of the electrical installation. The control unit with a microprocessor is connected to the positive and negative poles of the DC operating current source. The reed switch control winding is connected to the positive and negative outputs of the control unit.

EFFECT: provision of remote monitoring of the serviceability of the device with simultaneous monitoring of the sticking of the reed switch contacts.

1 cl, 1 dwg