Electric strike is an electromechanical device designed to lock or unlock doors upon receiving an electrical impulse. This apparatus integrates seamlessly into door access control systems, providing a mechanism that converts electrical energy into mechanical motion to enable or restrict access. The device consists of a metal plate, known as the strike plate, and an electrically actuated hinged piece that locks or unlocks the strike plate when activated. Commonly used in conjunction with card readers, keypads, or biometric systems, electric strikes offer a versatile solution for controlled entry, enhancing security in commercial, industrial, and high-security environments.
The operational principles of electric strikes rely on solenoid or motorised mechanisms. When activated by an access control signal, the solenoid or motor engages, causing the hinged piece to pivot away from the door latch, allowing the door to open without turning the handle. Conversely, deactivation of the device causes the hinged piece to block the door latch, securing the door closed. Electric strikes are adaptable to various types of door latches and are available in fail-safe or fail-secure configurations, ensuring that they either remain locked or unlocked in the event of a power failure, as per safety and security requirements.
Electric strikes are distinguished by their compatibility with diverse door frame materials and designs, including wood, metal, and PVC. They are integral components of comprehensive building security systems, often interfaced with emergency exit devices, ensuring compliance with fire safety and building code regulations. Their widespread adoption is driven by the balance they offer between maintaining secure premises and allowing flexible access control tailored to specific operational requirements.