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электрическая защёлка (An electric strike is an access control device used for doors. It replaces the fixed strike often used with a latchbar. Like a fixed strike, it normally presents a ramped surface to the latchbar allowing the door to close and latch just like a fixed strike would. However, an electric strike's ramped surface can, upon command, pivot out of the way of the latchbar allowing the door to be pushed open without the latchbar being retracted (that is, without any operation of the knob) – wiki Alexander Demidov) |
