Magnetic Switch 4 Sets NO NC Reed Door Sensor Brown Cylindrical E678

Description

Product Overview

The Gebildet magnetic switch kit is engineered for precision and durability in demanding access‑control environments. Each of the four brown cylindrical reed switches measures approximately 10 mm in diameter and 26 mm in length, providing a compact form factor that fits discreetly into door frames, window panels, and other recessed mounting locations. The integrated reed sensor operates without physical contact, detecting magnetic fields generated by a paired magnet to signal open or closed states. This contactless operation eliminates wear and ensures a long service life, even in high‑cycle applications.

All four units share a common wiring configuration: a blue lead for the common terminal, a black lead for the normally‑closed (NC) circuit, and a white lead for the normally‑open (NO) circuit. This color‑coded scheme simplifies installation and reduces the risk of wiring errors. The 30 cm cable is made from high‑temperature‑resistant PVC, offering flexibility for routing while maintaining electrical integrity. The switches support a wide voltage range from 3 V to 48 V DC and can carry up to 0.5 A, delivering a maximum power rating of 10 W. These specifications make the kit suitable for a variety of low‑voltage devices, including LED indicators, relays, microcontroller inputs, and GPS‑based tracking modules.

Usage

Designed with versatility in mind, the magnetic switch kit excels in both residential and commercial security installations. In a typical home security scenario, the reed sensors can be mounted on entry doors and windows to provide real‑time status updates to an alarm panel or smart home hub. When the door or window is opened, the magnet moves away from the reed switch, causing the NO contact to close and triggering an audible alarm, a notification to a mobile app, or an activation of a camera system.

In industrial settings, the switches are frequently employed to monitor equipment enclosures, safety interlocks, and access points to restricted areas. Their ability to operate reliably at 24 V or 48 V DC makes them compatible with PLCs (Programmable Logic Controllers) and SCADA (Supervisory Control and Data Acquisition) systems. Additionally, the NC contact can be used to maintain a closed circuit that powers a status LED, providing a visual indication that a door remains securely closed.

Because the switches are magnetic, they are immune to dust, moisture, and mechanical vibration, which are common challenges in outdoor installations or harsh manufacturing environments. The recessed design also helps conceal the sensor, reducing the chance of tampering or accidental damage. Whether you are building a DIY smart lock, integrating with a home automation platform like Home Assistant, or outfitting a commercial building with a comprehensive intrusion detection system, this kit offers the flexibility and reliability required for mission‑critical applications.

Why Choose Us

Gebildet is a recognized manufacturer in the industrial electrical sector, known for rigorous quality control and adherence to international standards. Each reed switch undergoes a multi‑stage testing process that includes magnetic sensitivity verification, contact resistance measurement, and environmental stress screening. This ensures that every unit meets the performance criteria required for safety‑critical installations.

Our commitment to customer satisfaction extends beyond the point of sale. We provide comprehensive technical documentation, wiring diagrams, and installation guides that are easy to follow, even for users with limited electrical experience. Should you encounter any issues, our dedicated support team is available to assist with troubleshooting, firmware compatibility questions, and replacement part inquiries.

Furthermore, the kit is packaged with all necessary components, including the four magnetic switches, a set of magnets, and a concise user manual. This all‑in‑one approach reduces the need for additional purchases and streamlines the deployment process, saving both time and money.

Key Features

• Four brown cylindrical reed switches with interchangeable NC and NO contacts for flexible circuit design
• Wide operating voltage range (3‑48 V DC) and up to 0.5 A current, suitable for diverse low‑voltage applications
• 30 cm high‑temperature‑resistant PVC cable with color‑coded leads for quick and error‑free wiring
• Contactless magnetic operation provides long life, resistance to dust, moisture, and vibration
• Comprehensive after‑sales support, detailed documentation, and a responsive technical assistance team

FAQ

What type of magnet should be used with these reed switches?

Any standard neodymium (NdFeB) magnet with a surface field strength of 300 mT or higher will work effectively. The magnet should be positioned directly opposite the reed switch housing for optimal sensitivity.

Can the switches be used with AC voltage?

These particular reed switches are rated for DC operation only. Using them with AC voltage may cause erratic behavior and is not recommended.

Is the kit compatible with popular home automation platforms?

Yes, the switches can be integrated with platforms such as Home Assistant, OpenHAB, and SmartThings via a compatible microcontroller or relay module that accepts low‑voltage DC inputs.

What is the expected lifespan of the reed switches?

Under normal operating conditions, the magnetic reed switches have an estimated lifespan of over 10 million actuations, thanks to their contactless design.

Do you offer bulk pricing for larger orders?

We provide volume discounts for bulk purchases. Please contact our sales department with your required quantity to receive a customized quote.