Magnetic Reed Switch RC-35 NC/NO Recessed Door/Window Sensor 6 Pack

Description

Product Overview

The MEI RC-35 magnetic reed switch is engineered for reliability and flexibility in home security and industrial applications. Housed in a sturdy 24 × 12 mm recessed enclosure, the switch features a robust reed mechanism that activates when a magnetic field is present within a 15‑25 mm range. This compact design allows seamless integration into door frames, window panels, and other tight spaces without compromising performance.

Electrical specifications include a rated voltage of 100 V and a contact capacity of 500 mA, delivering a maximum power handling of 10 W. The switch supports both Normally Open (NO) and Normally Closed (NC) configurations, with a common terminal, giving installers the freedom to choose the wiring scheme that best fits their system architecture. The 25 cm (9.8 in) lead wires are color‑coded—red for NC, black for NO, and white for common—simplifying connection and reducing the chance of wiring errors.

Manufactured by MEI, a trusted name in industrial electrical components, the RC-35 meets rigorous quality standards and is backed by a 90‑day risk‑free guarantee. Its low power consumption and high durability make it suitable for a wide range of devices, from simple LED indicators to complex relay‑controlled alarm networks. The package includes six individual switches, providing ample inventory for multi‑point security installations or for keeping spares on hand.

Beyond its core technical attributes, the RC-35’s design emphasizes ease of use. The recessed mounting style ensures the switch sits flush with the surrounding surface, protecting the reed element from accidental damage while maintaining a discreet appearance. This makes it an excellent choice for both residential and commercial environments where aesthetics and reliability are equally important.

Usage

The RC-35 magnetic reed switch excels in a variety of real‑world scenarios. In residential security systems, it can be installed on entry doors and windows to detect unauthorized openings, instantly triggering alarms or notifying homeowners via smart‑home hubs. Its fast response time ensures that any breach is captured the moment the magnetic field is disrupted.

For commercial applications, the switch is ideal for monitoring access points in warehouses, office buildings, and retail spaces. It can be paired with LED indicators to provide visual confirmation of door status, or integrated into larger PLC‑controlled automation systems for comprehensive building management. The 100 V rating allows direct connection to many low‑voltage power supplies commonly used in commercial alarm panels.

Industrial users will appreciate the RC-35’s suitability for equipment enclosures, where it can monitor cabinet doors or safety interlocks. Its ability to operate reliably in temperature ranges typical of industrial settings, combined with its resistance to dust and minor vibrations, ensures long‑term performance. Additionally, the switch can be employed in GPS tracking devices, low‑voltage relay circuits, and even hobbyist projects that require precise magnetic detection.

Installation is straightforward: mount the reed switch in the designated recess, align the accompanying magnet on the moving part (door or window), and connect the leads to the control circuit. The clear color‑coding of the wires reduces setup time, and the 25 cm length provides flexibility for routing to nearby control panels or alarm modules.

Why Choose Us

Choosing the MEI RC-35 means selecting a product built on decades of expertise in industrial switches. MEI’s commitment to quality is reflected in the rigorous testing each unit undergoes, including temperature cycling, magnetic field tolerance, and electrical endurance tests. This ensures that every switch delivered meets or exceeds industry standards for safety and performance.

Our customers benefit from a comprehensive support package. In addition to the 90‑day money‑back guarantee, we provide detailed installation guides, wiring diagrams, and responsive technical assistance. Should any issue arise, our dedicated support team is ready to help troubleshoot and resolve problems quickly, minimizing downtime for your security system.

Durability is another hallmark of the RC-35. The sealed reed chamber protects the internal contacts from moisture, dust, and minor mechanical shocks, extending the service life well beyond typical alternatives. This robustness translates into lower total cost of ownership, as fewer replacements are needed over the lifespan of the installation.</n

Furthermore, the switch’s design emphasizes environmental responsibility. MEI adheres to RoHS compliance, ensuring that the product is free from hazardous substances and safe for both users and the planet. By integrating the RC-35 into your projects, you align with sustainable practices without sacrificing performance.

Finally, the RC-35’s versatility makes it a cost‑effective solution for a broad spectrum of applications. Whether you are outfitting a single residential door or a multi‑zone commercial security network, the switch’s flexible wiring options and reliable operation provide a solid foundation for any security architecture.

Key Features

• Compact recessed housing fits discreetly into doors and windows, preserving aesthetics while delivering reliable detection.
• Dual NC/NO contacts give installers flexibility to match any control system configuration without extra components.
• Rated for 100 V and 500 mA, supporting a wide range of low‑voltage alarm and lighting applications.
• Durable sealed design resists dust, moisture, and minor impacts, ensuring long‑term performance in harsh environments.
• Backed by MEI’s 90‑day risk‑free guarantee and dedicated technical support for peace of mind.

FAQ

What is the difference between NC and NO contacts?

NC (Normally Closed) contacts remain connected when the magnet is present and open when the magnetic field is removed, while NO (Normally Open) contacts do the opposite—they stay open when the magnet is present and close when the field is removed. This allows you to choose the behavior that best fits your alarm logic.

Can the RC-35 be used with a battery‑powered alarm system?

Yes, the RC-35’s low power consumption and 100 V rating make it compatible with battery‑operated panels that provide a regulated low‑voltage supply. It draws minimal current, preserving battery life while still delivering reliable door/window status signals.

What is the recommended mounting method for optimal performance?

Mount the reed switch in a recessed cutout on the stationary part of the door or window frame, ensuring the accompanying magnet aligns directly opposite the switch within the 15‑25 mm activation range. Secure the switch with the supplied screws, and verify that the magnet’s polarity matches the intended NC or NO configuration.

How does the RC-35 handle environmental conditions?

The sealed reed chamber protects the internal contacts from dust, humidity, and minor vibrations, allowing the switch to operate reliably in typical indoor environments, including temperature fluctuations common in residential and commercial settings. For extreme conditions, additional protective enclosures may be used.

Is there a warranty or return policy for the RC-35?

MEI offers a 90‑day money‑back guarantee on the RC-35. If the product does not meet your expectations or encounters a defect within this period, you can return it for a full refund. Technical support is also available to assist with installation or troubleshooting.