MC6-S NO/NC MAGNETIC SWITCH

NO/NC Magnetic Switch Security Contact Universal Surface-Mount Alarm Sensor 

This NO/NC Magnetic Switch is a high-reliability security component designed for monitoring doors, windows, and other entry points in both residential and commercial alarm systems. Featuring a versatile three-terminal design, it allows installers to choose between Normally Open (NO) and Normally Closed (NC) configurations to suit any security panel's logic requirements.

Key Product Features

• Triple Terminal Configuration: Equipped with three high-quality screw terminals—Common (COM), Normally Closed (NC), and Normally Open (NO)—providing total flexibility for different circuit types.

• Precision Reed Switch: Features an internal magnetic reed switch that triggers instantly when the magnetic field is interrupted by moving the corresponding bar.

• Surface-Mount Installation: Designed for quick and easy surface mounting on door frames, window sills, or cabinet doors using standard screws.

• Rugged ABS Housing: Encased in a durable, white flame-retardant plastic shell that resists impact and provides a clean, professional appearance.

• Integrated Mounting Flanges: Both the sensor unit and the magnet bar include built-in screw holes for secure, permanent attachment to surfaces.

• Professional "GUARD" Series: Part of the heavy-duty Guard security lineup, built to withstand frequent use in high-traffic entryways.

Technical Specifications

• Logic Type: SPDT (Single Pole Double Throw).

• Contact Modes: Normally Open (NO) / Normally Closed (NC).

• Mounting: Surface Mount via Screw Terminals.

• Body Material: High-Impact ABS Plastic.

• Color: Security White.

• Application: Burglary alarms, access control, home automation triggers, and industrial limit switching.

Top 3 Customer Questions & Concerns ‍

 When should I use the NC (Normally Closed) terminal? Most standard security systems use the NC terminal. In this setup, the circuit is "closed" when the door is shut; if the door opens, the circuit breaks, immediately alerting the alarm panel.

Does this switch require a battery? No, this is a passive magnetic device. It functions as a physical switch for the low-voltage current already present in your alarm system's wiring.

 Can I use this to turn on a light when a closet door opens? Yes. For automation tasks like turning on a light or a chime, you would typically use the Normally Open (NO) terminal, which completes the circuit only when the magnet is moved away from the sensor.