Description
Product Overview
The MC-32 NC magnetic reed switch from Sopepoyie is engineered to deliver precise, reliable door status monitoring for a wide range of security and automation applications. Constructed from high‑quality ABS material, the switch housing provides excellent resistance to impact, moisture, and temperature fluctuations, ensuring long‑term durability in demanding industrial environments. The device operates on a simple wired connection, eliminating the need for batteries and reducing maintenance costs. With a compact footprint of 2.5 × 0.5 × 0.5 inches (64 × 13 × 13 mm) and a lightweight design of just 0.16 kg, it can be discreetly mounted on doors, panels, or enclosures without obstructing normal operation. Rated for up to 100 V and 0.5 A, the MC-32 provides a safe operating margin for most low‑voltage alarm and access control circuits. Its normally‑closed (NC) contact configuration ensures that any interruption of the magnetic field—such as a door opening—immediately opens the circuit, triggering an alarm or access event. The package includes five individual switches and the necessary mounting screws, offering a cost‑effective solution for multi‑point installations.
Usage
Designed for versatility, the MC-32 NC reed switch integrates seamlessly with both burglar alarm systems and access control platforms. Install the sensor on the frame of a door or window where a permanent magnet can be positioned on the moving part. When the door is closed, the magnet aligns with the reed switch, keeping the circuit closed. Opening the door separates the magnet, causing the reed switch to open and instantly notifying the control panel of a breach. This straightforward mechanism makes the MC-32 ideal for residential security, commercial building entry points, industrial equipment cabinets, and even specialized applications such as vending machine monitoring or server rack access control. Because the device is wired, it can be linked directly to existing alarm panels, PLCs, or microcontroller‑based systems without the need for additional power sources. The screw‑in mounting style simplifies installation for electricians and technicians, allowing the sensor to be securely affixed to metal or plastic surfaces with minimal tools. Its low power consumption and robust construction also make it suitable for harsh environments, including outdoor installations protected by enclosures.
Why Choose Us
Choosing the MC-32 NC magnetic reed switch means selecting a product that combines engineering excellence with practical convenience. Sopepoyie, the manufacturer, has a reputation for delivering high‑quality industrial components that meet stringent safety and performance standards. Each switch undergoes rigorous testing for contact reliability, magnetic sensitivity, and environmental resistance, ensuring consistent operation over thousands of cycles. The inclusion of five switches per package reduces overall project costs and simplifies inventory management for installers who need multiple sensors across a facility. Moreover, the NC configuration provides a fail‑safe design: any loss of power or magnetic field automatically triggers an alarm condition, enhancing overall system security. Sopepoyie’s commitment to customer support includes detailed technical documentation, responsive after‑sales service, and a clear warranty policy, giving users confidence that their investment is protected. By integrating this sensor into your security or automation system, you benefit from a proven solution that balances performance, durability, and ease of installation.
Key Features
- Five‑piece kit with mounting screws for quick, hassle‑free installation.
- Normally‑closed (NC) contact ensures immediate alarm activation when the door opens.
- Compact ABS housing resists impact, moisture, and temperature extremes.
- Rated for 100 V and 0.5 A, suitable for most low‑voltage alarm and access control circuits.
- Dedicated Sopepoyie technical support and warranty for peace of mind.
FAQ
What type of magnet should be used with the MC-32 reed switch?
The sensor works with any standard neodymium (NdFeB) magnet that provides sufficient magnetic flux density at the specified actuation distance of 15‑25 mm. A small disc‑shaped magnet placed on the moving part of the door is typically enough to keep the reed switch closed when the door is shut.
Can the MC-32 be used in outdoor installations?
Yes. Although the switch itself is not weather‑proof, it can be installed inside a protective enclosure or behind a weather‑sealed panel. The ABS housing is resistant to moisture and temperature variations, making it suitable for outdoor use when properly protected.
Is the MC-32 compatible with both AC and DC power supplies?
The device is rated for a maximum voltage of 100 V and a current of 0.5 A, which covers most low‑voltage AC and DC applications commonly found in alarm and access control systems. Always verify the voltage polarity and ensure the power source stays within the specified limits.
How does the normally‑closed (NC) configuration improve system safety?
In an NC configuration, the circuit remains closed when the magnetic field is present (door closed). If the magnet moves away or the switch fails, the circuit opens, instantly signaling a fault or intrusion. This fail‑safe behavior ensures that any loss of contact—whether due to a door opening or a component failure—triggers an alarm, enhancing overall system reliability.
What warranty does Sopepoyie offer for the MC-32?
Sopepoyie provides a one‑year limited warranty covering manufacturing defects and premature failure under normal operating conditions. Customers can contact the support team for warranty claims, replacement parts, or technical assistance.




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