What is Electromagnetic lock?

The design of the electromagnetic lock (or magnetic lock) is the same as that of the electromagnet. It uses the principle of electromagnetism. When the current passes through the silicon steel sheet, the electromagnetic lock will produce a strong suction force and tightly attract the iron plate to lock the door. . As long as a small current electromagnetic lock will produce a great magnetic force, the access control system that controls the power supply of the electromagnetic lock will cut off the power after identifying the correct personnel, and the electromagnetic lock can open the door after it loses its suction.

Concept
As long as a small current electromagnetic lock will produce a huge magnetic force, the access control system that controls the power supply of the electromagnetic lock will cut off the power after identifying the correct personnel, and the electromagnetic lock can open the door after it loses its suction. Because the electromagnetic lock has no complicated mechanical structure and the structure of the bolt, it is suitable for the passage control of the escape door or the fire door. The lock body is protected by pouring epoxy resin inside.
Nowadays, the suction strength of electromagnetic locks is expressed in LB (pounds), and the test method is static pressure. The so-called static pressure means that the electromagnetic lock gradually increases the pulling force on the adsorption iron plate after the electromagnetic lock is energized. When the attraction force of the electromagnetic lock is exceeded, the adsorption iron plate is pulled open instantly. The data of this tensile force is the tensile force value of the electromagnetic lock. Moreover, the force of the electromagnetic lock and the adsorption iron plate must be face to face and linear pressure, so that the electromagnetic lock has the greatest suction force. The adsorption iron plate may be temporarily magnetized due to the magnetic induction of the electromagnet for a long time

Function classification
Indoor magnetic locks are widely used in important buildings at home and abroad, and become an important link that cannot be ignored in high-tech access control management systems. Compared with traditional locks, its advantages are strong suction, low power consumption, stable and reliable quality, and monitoring signals. Feedback output, prevent external damage, no noise, and have the advantages of fire protection and anti-theft characteristics.
According to different installation environments, magnetic locks are divided into two types: hanging type and embedded type.
Basic parameters
Withstand tension: 80kg 150kg 180kg 280kg 300kg 350kg 500kg, etc.;
Embedded electromagnetic lock
Embedded electromagnetic lock
Working voltage: DC12V;
Working current: ≤250MA;
Professional device: built-in surge absorber;
Scope of application: wooden doors, glass doors, metal doors, fire doors;
Security type: power off and unlock.
Application
ML Series Electromagnetic locks are mainly used for indoor high-voltage switchgear's front and rear cabinet doors that need to be locked to achieve interlocking to prevent misoperation. It is an indispensable locking device for power generation and power supply departments. In addition, in order to meet the needs of integrated automated substations, some electromagnetic locks have added auxiliary contacts in the locks, which can provide users with a pair of corresponding switch contacts at the closing and opening positions of the locks, which is convenient for users to interlock the locks with each other and integrate automated sampling to avoid It is an ideal locking device for modern substation equipment.