Magnetic Reed Switch MC-32 NC Surface Mount Wired Security Window Door Contact Sensor Alarm Magnetic Reed Switch White – (6 Sets)

Description

Product Overview

The MC-32 magnetic reed switch from QLXHBOT is engineered to deliver dependable normally‑closed (NC) performance for a wide range of security and automation applications. Constructed from high‑temperature resistant ABS plastic, the white housing not only resists fire but also integrates seamlessly into modern interior designs. Each unit measures 2.5 × 0.7 × 0.5 inches and weighs just 4.97 oz, offering a compact footprint that fits tight installation spaces. The switch operates by detecting the presence of a magnetic field; when the magnet is near, the internal contacts open, breaking the circuit, and when the magnet moves away, the contacts close, completing the circuit. This simple yet effective mechanism makes the MC-32 an ideal component for alarm systems, door‑window monitoring, and industrial safety circuits.

Designed for surface‑mount technology (SMT), the MC-32 can be soldered directly onto printed circuit boards, reducing assembly time and improving reliability. The recommended mounting gap between the reed switch and its companion magnet is 15 mm to 25 mm, providing flexibility for various frame thicknesses. The device is rated for a maximum switching voltage of 250 V and a current rating of 0.5 A, meeting the needs of most low‑power alarm circuits while maintaining low power consumption. With a rated life of over 100,000 operations, the MC-32 ensures long‑term durability even in high‑frequency switching environments.

Usage

In residential settings, the MC-32 reed switch can be installed on windows and doors to detect unauthorized entry. When paired with a compatible magnet, the switch provides a clear signal to a central alarm panel, triggering audible or visual alerts. Homeowners appreciate the discreet white color, which blends with window frames and door panels without drawing attention. For commercial buildings, the switch is equally effective on larger entry points, glass partitions, and even metal doors when a suitable magnet is used.

Industrial applications benefit from the MC-32’s robust construction and reliable NC operation. The switch can be integrated into machinery safety interlocks, monitoring access panels, and controlling ventilation systems that require a fail‑safe condition when a door is closed. Its low power draw makes it suitable for battery‑powered or solar‑powered security installations, extending operational life without frequent maintenance. Additionally, the switch can be incorporated into wireless alarm networks, where the wired contact can be linked to a wireless transmitter for remote monitoring.

Installation is straightforward: mount the reed switch on the frame using the included screws, align the magnet on the moving part, and ensure the gap falls within the 15‑25 mm range. The surface‑mount pads allow for a clean solder joint, and the compact size means the switch can be placed in concealed locations, preserving the aesthetic of the surrounding architecture.

Why Choose Us

Choosing the MC-32 from QLXHBOT means selecting a product backed by rigorous quality control and a reputation for reliability in the industrial and scientific market. Each batch undergoes comprehensive testing for magnetic sensitivity, contact resistance, and environmental resilience, ensuring that every switch meets the advertised specifications. Our commitment to customer satisfaction includes responsive technical support, detailed installation guides, and a warranty that covers manufacturing defects.

QLXHBOT leverages over a decade of experience in producing reed switches, allowing us to refine the magnetic core composition and the sealing process for optimal performance. The white ABS housing not only provides fire‑resistance but also offers UV stability, making the switch suitable for both indoor and outdoor installations where exposure to sunlight could degrade lesser materials.

We understand that downtime can be costly, which is why the MC-32 is designed for easy replacement and minimal lead time. Our distribution network ensures that replacement parts are readily available, and our online resources include troubleshooting tips, wiring diagrams, and application notes to help engineers integrate the switch into complex systems quickly.

Key Features

• Reliable NC operation ensures a fail‑safe circuit when the magnet is present.
• Compact white ABS housing blends with any décor while providing fire resistance.
• Surface‑mount design simplifies PCB assembly and reduces installation time.
• Wide mounting gap tolerance (15‑25 mm) accommodates various frame thicknesses.
• Dedicated technical support and fast replacement parts for uninterrupted service.

FAQ

What is the difference between NC and NO reed switches?

NC (normally closed) switches keep the circuit closed when the magnet is near and open when the magnet moves away, providing a fail‑safe condition. NO (normally open) switches do the opposite, staying open when the magnet is present and closing when it is removed.

Can the MC-32 be used with wireless alarm systems?

Yes, the MC-32 can be wired to a wireless transmitter module, allowing the magnetic contact to be monitored remotely without additional wiring.

What is the recommended mounting gap for optimal performance?

The optimal gap between the reed switch and its magnet is between 15 mm and 25 mm. Maintaining this range ensures reliable activation and deactivation of the switch.

Is the white ABS housing suitable for outdoor installations?

The ABS material is UV‑stable and fire‑resistant, making it suitable for outdoor use as long as the enclosure provides protection from extreme weather conditions.

How many cycles can the MC-32 reliably handle?

The switch is rated for over 100,000 operational cycles, providing long‑term durability for high‑frequency applications.