bnafes Magnetic Reed Switch 4 Sets NC NO Door Contact, Black ABS

Description

Product Overview

The bnafes 4‑set magnetic reed switch is engineered for reliable door and window monitoring in industrial and residential security systems. Constructed from durable black ABS plastic, each unit measures 55 × 12.5 × 11.5 mm, offering a low‑profile footprint that fits easily into tight enclosures. The reed switch operates on a wide voltage range of 5 V to 24 V, with a maximum rating of 100 V and 500 mA, delivering up to 10 W of power handling. Its magnetic contact mechanism provides both normally‑closed (NC) and normally‑open (NO) configurations, allowing flexible integration with alarm panels, LED indicators, relays, GPS trackers, and other low‑voltage devices. The trigger distance of 10‑20 mm ensures consistent activation when the magnet aligns with the reed, while the built‑in screw terminals simplify wiring and reduce installation time. Designed for longevity, the sealed glass envelope protects the internal contacts from dust, moisture, and vibration, guaranteeing years of dependable service.

Usage

These magnetic reed switches are ideal for a variety of security and automation scenarios. In residential settings, they can be installed on entry doors, garage doors, and windows to trigger alarms or smart‑home notifications when a door is opened or closed. In commercial environments, they serve as reliable sensors for access‑control systems, fire‑door monitoring, and equipment enclosures, providing real‑time status updates to central control panels. The compact size and low power consumption make them suitable for battery‑operated devices, such as remote sensors and portable alarm units. Additionally, the NC/NO versatility allows users to configure the switch for either break‑circuit or make‑circuit logic, adapting to the specific requirements of PLCs, microcontrollers, or relay boards. Installation is straightforward: mount the reed switch on the frame, align the accompanying magnet on the moving part, and secure the wiring using the supplied screws. The robust ABS housing ensures the switch remains functional even in harsh industrial environments, resisting temperature extremes and mechanical shock.

Why Choose Us

Choosing the bnafes magnetic reed switch means selecting a product backed by rigorous quality control and a commitment to customer satisfaction. Each unit undergoes multiple testing stages, including voltage endurance, contact bounce analysis, and environmental sealing verification, to meet international standards for reliability. The ABS housing is sourced from certified suppliers, guaranteeing resistance to impact and chemical exposure, which translates to a longer service life compared to generic plastic enclosures. Our design emphasizes ease of integration: the included screw terminals eliminate the need for additional adapters, and the clear labeling of NC, NO, and COM pins reduces wiring errors. We also provide comprehensive technical documentation, including wiring diagrams, mounting guidelines, and troubleshooting tips, empowering engineers and DIY enthusiasts alike. Should any issues arise, our dedicated support team offers prompt assistance, with options for replacement parts or detailed troubleshooting, ensuring minimal downtime for your projects.

Key Features

• Durable black ABS housing resists impact, moisture, and temperature extremes
• Dual NC and NO contacts give flexible wiring options for any control logic
• Wide operating voltage (5‑24 V) and high current rating (100 V, 500 mA) support diverse devices
• Compact 55 × 12.5 × 11.5 mm size fits tight enclosures and low‑profile panels
• Responsive 10‑20 mm magnetic trigger range ensures reliable detection
• Easy screw‑terminal installation reduces setup time and wiring errors
• Comes with four switches per package, providing value for larger projects
• Responsive customer support and fast replacement parts for peace of mind

FAQ

What voltage range can the reed switch handle?

The switch operates safely from 5 V up to 24 V, with a maximum voltage rating of 100 V, making it suitable for most low‑voltage alarm and automation circuits.

Can I use the switch for both NC and NO configurations?

Yes, the device provides separate NC, NO, and COM terminals, allowing you to select the appropriate configuration for your application without additional hardware.

Is the ABS housing resistant to environmental factors?

Absolutely. The ABS material is engineered to withstand moisture, dust, and temperature variations, ensuring reliable operation in both indoor and outdoor installations.

How do I install the magnetic reed switch?

Mount the reed switch on the stationary part of the door or window frame, align the matching magnet on the moving part, and secure the wiring using the supplied screws. No additional adapters are required.

What support is available if I encounter issues?

Our technical support team is available to help with troubleshooting, wiring assistance, and replacement parts, ensuring your project stays on schedule.