BLADE Russian patent published in 2019 - IPC H01H21/54 

FIELD: electrical engineering.

SUBSTANCE: invention relates to a low-voltage distribution and control equipment, which is intended for use in electrical power distribution circuits with a rated voltage of up to 1,000 V AC or up to 1,500 V DC, in addition, this invention can be operated in high voltage electrical circuits. Blade contains a movable contact block, a stationary contact stand and a holder-contact stand, a movable contact block includes two blade contacts, two arcing blade contacts parallel to each other, and two spring compensators, a fixed contact includes a fixed contact stand and two arcing sliding contacts fixed on the base of the insulating contacts, the contact-holder stand includes a contact-holder fixed on the base of the insulating contacts, each spring compensator contains two sets of disc-shaped springs placed on the blade contact sleeve, the fixed contact is made in the form of a plate with a cutout for the blade contact sleeve, the arcing blade contacts and the arcing sliding contacts are arranged parallel to the fixed contact and the blade contacts and can be opened later, and closed earlier than the contacts of the blade with a fixed contact, each of the bases of the insulating contacts contains a ceramic insulator.

EFFECT: technical result is to provide reliable contact pressure.

1 cl, 4 dwg