NC Magnetic Reed Switch Contact for Rolling Gates and Garage Doors MC52 A compact, normally closed magnetic contact designed for alarm and security applications on rolling gates, garage doors, and similar closures. The MC52 provides a simple, reliable way to sense open and closed positions and interface with alarm systems, gate controllers, and automation equipment. Key benefits Reliable position detection: Normally closed design provides continuous circuit monitoring and changes state when the magnet moves away, enabling prompt detection of gate or door opening. Easy system integration: Works with common alarm panels, gate controllers, and access control systems that accept magnetic reed contacts. Spacesaving and discreet: Silver gray lowprofile housing fits into tight spaces without drawing attention. Built for security installations: Intended for use where consistent contact switching is required to trigger alarms or automation sequences. What it does and how it helps Monitors door or gate position and sends a simple open or closed signal to connected security or control equipment. Helps reduce false alarms by providing a direct magnetic contact rather than motion sensing, offering consistent operation in outdoor and indoor installations. Allows centralized monitoring of entrances for improved site security and operational control. Important attributes Function: Magnetic reed switch, normally closed (NC) contact for alarm and security use. Compatibility: Designed for integration with alarm panels, gate controllers, garage door automation systems, and other devices that use magnetic contact inputs. Color and finish: Silver gray housing for a neutral, unobtrusive appearance. Performance: Intended to deliver dependable switching action for position sensing in typical gate and door applications. Practical application scenarios Rolling gate security: Mount the switch and magnet on a rolling gate and frame to notify an alarm panel or controller when the gate is opened or closed. Garage door monitoring: Use as a door contact to report garage door status to a home or commercial alarm system and to prevent unintended operation. Shutter and storage door control: Install on metal shutters, storage unit doors, or service entrances to add tamper detection and position monitoring for centralized control. Installation notes Intended for straightforward wiring into existing alarm and control circuits that accept NC magnetic contacts. Position the magnet and switch so that the contact closes when the door or gate is in the secure position and opens when moved away. What makes it stand out Specifically configured as a normally closed contact for systems that require continuous circuit supervision. Neutral silver gray housing that blends into most installations. Simple, focused function that integrates with a wide range of security and control equipment. Model MC52 This magnetic reed switch contact is a practical component for anyone adding or maintaining position sensing on rolling gates, garage doors, shutters, and similar closures where a normally closed contact is required for alarm or control applications.