BN 325-R Schmersal magnetic reed switch

BN 325-R Schmersal magnetic reed switch 
Key Features:

• Type: Magnetic Reed Switch.
• Principle: Non-contact sensing using magnetic actuation.
• Contacts: Typically 1 Reed contact.
• Housing: Thermoplastic.
• Actuation: Front-actuated by a magnet (north or south pole), with markings indicating direction.
• Applications: Elevators (door safety), industrial automation, position sensing.
• Variants: Comes with different suffixes (e.g., -1279, -1279-3) indicating cable length, connectors (like flat plug-in), or specific configurations. 

How it Works:
When the designated magnet approaches the switch's marked surface, the internal reed contacts open or close, signaling the position, making it ideal for monitoring moving parts without physical contact, which extends its lifespan.