I. Overview 
The DSN3-DMY(Z) indoor electromagnetic lock (hereinafter referred to as the electric door lock) is suitable for indoor rated voltages of 3, 6, 10, and 35kV. It is used in indoor high-voltage electrical equipment with a frequency of 50Hz and works in conjunction with sensors. It has two functions: live indication and forced locking. It is suitable for installation on the front and rear doors of various switchgear cabinets and other areas requiring forced locking, thereby reliably preventing electrical misoperations and accidental entry into live compartments, enhancing the anti-misoperation performance of the supporting products.
II. Composition and Principle
The DSN3-DMY(Z) indoor electromagnetic lock consists of mechanical and electrical parts. The mechanical part includes the door lock core, compression spring, etc. The electrical part consists of the display section, main unit circuit, electromagnetic coil, limit switch, etc.
Its working principle involves extracting a high-voltage signal source from the matching sensor. After processing by the controller, the light-emitting diodes illuminate to indicate the live status of phases A, B, and C of the high voltage. When any phase of the high-voltage main bus is live, the controller cuts off power to the electromagnetic lock, making it impossible to open. When all three phases of the high-voltage main bus are de-energized, the controller supplies power to the electromagnetic lock coil, engaging the latch and allowing the lock to be opened. This achieves the combined effect of high-voltage live indication and mechanical forced locking.
III. Ordering Information
When placing an order, please specify the product model, installation method (left-opening or right-opening door), power supply type, rated voltage, sensor model, required quantity, and delivery time.