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BLASI – Magnetic switch bistable NC/NO

Name: BLASI - Magnetic switch bistable NC/NO - MaceGulf
SKU: BLSP-7920050

BLASI – Magnetic switch bistable NC/NO is a reed‑type magnetic position sensor used on BLASI automatic doors and barriers to detect and store the state of the door or gate. The BLASI – Magnetic switch bistable NC/NO keeps its contact in the last switched position (normally open or normally closed) until the magnet passes again, which makes it suitable for locked/unlocked or “open/closed” status memory functions. It works without external power thanks to an internal magnetic latch, so it provides reliable, low‑power feedback for BLASI control and safety circuits. The compact housing and cable‑through design make BLASI – Magnetic switch bistable NC/NO easy to mount on frames, pillars or operators in indoor and outdoor installations.

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BLASI – Magnetic switch bistable NC/NO is used in BLASI revolving, swing and sliding‑door systems to monitor door position with built‑in state memory. When the magnet on the moving leaf first passes the sensor, the BLASI – Magnetic switch bistable NC/NO changes its contact state from NO to NC (or vice versa) and remains in that state even after the magnet moves away, until the magnet passes again to flip it back. This bistable behaviour is ideal for security and interlock applications where the controller must “remember” whether the door was opened or closed, even if the sensor is no longer in the magnetic field. The switch is particularly useful in gate‑end detection, locked‑door monitoring and elevator‑leveling‑type logic adapted to BLASI hardware.

Designed for low‑voltage, low‑current control circuits, BLASI – Magnetic switch bistable NC/NO avoids the need for continuous power to hold its state, which helps reduce energy use and wiring complexity. Its sealed reed contact and compact thermoplastic body resist dust, moisture and vibration, supporting long‑term reliability in commercial entrances such as malls, airports and office lobbies. By using BLASI – Magnetic switch bistable NC/NO, installers gain a robust, non‑contact position sensor with memory that enhances accurate door‑status feedback and contributes to the safe, predictable operation of BLASI‑based automatic‑door and barrier systems.

Article No: 7920050