plastic magnetic contact

Description

• Components: A system of two parts—a small magnet and a reed switch in a plastic case.
• Operation: The magnet is mounted on the moving part (like a door), and the reed switch on the fixed part (like the frame). When closed, the magnet keeps the reed switch closed; when open, the switch opens, triggering a signal.
• Durability: The plastic casing is designed to be durable and resistant to environmental factors.
• Installation: They are typically designed for easy surface mounting on a door frame and the corresponding door. 

• Contact type: Available in both "normally closed" (NC) and "normally open" (NO) configurations depending on the application's needs.
• Tamper detection: Some models have tamper-resistant designs to alert you if someone tries to interfere with them.
• Wiring: Wired contacts often have a cable with a specific length, with leads coming out from the long edge.
• Operating distance: There is a specific "make distance" (when the circuit is closed) and a "break distance" (when the circuit is open), with a maximum gap typically around $18$mm to $28$mm. 

• Versatility: Suitable for a wide range of applications, including home security, commercial and industrial access control, and monitoring cabinets.
• Compatibility: Designed to be compatible with various security and automation systems, sending a signal to a control panel to trigger alarms or notifications.
• Specifications: Can have different maximum switching voltage and current ratings, such as $20$V maximum switching voltage and $20$mA maximum switching current for some models.