Indoor DSN-BMY Electromagnetic Lock

Features of Indoor DSN-BMY Electromagnetic Lock The indoor electromagnetic lock is an interlocking device for electronic control mechanisms to prevent misoperation of high-voltage switchgear appliances. It is mainly suitable for the front and rear cabinet doors of indoor high-voltage switchgear, isolating switches, circuit breakers, grounding wires and other parts that need to be locked to achieve interlocking to prevent misoperation. It is an indispensable locking device for power generation and power supply departments.

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Product Description

Indoor Medium Voltage Switchgear - Indoor DSN-BMY Electromagnetic Lock

One: Installation Steps

Begin by removing the M5 nut, spring washer, and flat washer from the panel mounting screw.
Insert the lock body's bolt side through the cabinet door opening from the outside. Turn the lock body to align the mounting screw with the 60mm hole on the cabinet door, ensuring that the lock panel and cabinet door panel are flat.
From inside the cabinet door, assemble the flat washer, spring washer, and M5 nut onto the lock panel's M5 screw. Tighten the M5 nut securely.

Two: Instructions for Use

(1) Normal Operation

a. To start, press the button to activate the power. This action will cause the electromagnet coil to separate the moving iron core from the lock bolt stopper, and the unlock indicator light will turn on, indicating that the lock is ready to be unlocked.

b. To unlock the cabinet door, turn the handle in the unlocking direction (clockwise for left open, counterclockwise for right open). When the handle reaches the limit position and you continue applying force, the lock bolt will automatically return to the locked position, allowing you to open the cabinet door. If the lock bolt is not in the unlocked position, it will automatically return to the locked position (auto reset). If the lock bolt is already in the locked position, manually turn the handle to fulfill the locking requirement.

Note: A and B locks have the same appearance and installation dimensions.

(2) Operation Method

A. Use the dial button. B. Pull the handle.

(3) Manual Unlocking

a. Press the button to cut off the power supply, turning off the unlocking light. The moving iron core will stick to the lock bolt stopper, indicating that unlocking is not allowed.

b. For special unlocking situations, take the unlocking key and insert it into the unlocking hole. Turn the key 90° to the "-" (stop position) as labeled on the panel. Push the moving iron core away from the lock stopper.

c. Follow the same steps as in normal operation (step b) to achieve "manual unlock."

Note: The unlocking key is used to release the locked state by pushing the moving iron core. For full unlocking, you must use the dial or handle, as the key alone cannot directly unlock the lock.

Related parameters：

1. Working voltage AC/DC 220V, 110V
2. Auxiliary contact: current ≤3A
Current ≤ 6A (circuit breaker locked)
3. Operating environment a. Temperature: upper limit +40°C
Lower limit -25℃-----10℃
4. Humidity: the daily average value is not more than 95%
The monthly average is not more than 90%
Ambient air temperature: upper limit +40°C, lower limit: -10°C in general areas, -25°C in alpine areas.
Altitude: The altitude of the installation area is not higher than 1000m.
Environmental humidity: The daily average relative humidity of the air is not more than 95%, and the monthly average is not more than 90%.
Environmental conditions: no obvious pollution, no flammable, explosive, chemical corrosion and salt spray and no frequent severe vibration