High-Power Reed Switch | 5A 250W Normally Open | 5x50mm MKA50202 Glass Tube

The MKA50202 reed switch handles circuits that use a lot of power. This normally open magnetic sensor switches loads up to 5A and 250W. It works in situations where a standard reed switch would fail. It reliably controls high-current devices with a magnetic field. Features and Benefits - High power rating - It switches 5A at 250V AC/DC. This lets you directly control motors, solenoids, and lighting. - Hermetically sealed glass body - The 5x50mm tube protects the contacts from dust and moisture. This ensures consistent performance at high voltages. - Normally Open (NO) contacts - The circuit stays open until a magnet is near. This is a common and safe setup for many control systems. - Fast switching speed - It activates in 1ms and deactivates in 0.4ms. This gives responsive performance in time-sensitive applications. Applications - Industrial controls - Use it as a non-contact limit switch or position sensor on machinery with high-current loads. - High-power security systems - It triggers high-wattage alarms, magnetic locks, or floodlights. These exceed the capacity of typical sensors. - Appliance manufacturing - It fits well as a safety interlock or mode selector in equipment that needs to manage substantial power. What It Is This is a High-Power Reed Switch, model MKA50202, designed for robust magnetic sensing applications. As a normally open switching transducer, it activates when a magnetic field is present. Its 5x50mm glass tube construction houses a magnetic control switch capable of handling up to 5A current and 250W power, making it suitable for demanding electrical circuits. Reed switches are a fundamental type of proximity sensor, detecting the presence of nearby magnets without physical contact. Key Uses & Applications This 5A 250W reed switch is ideal for various industrial sensor applications where reliable magnetic control is needed. Its high power rating allows direct switching of higher current loads compared to standard reed switches. Common uses include position sensing in machinery, door and window security systems, liquid level sensing (when paired with a float magnet), and as a limit switch in automation. It can also serve as a component in custom electronics modules requiring robust magnetic detection. How to Choose When selecting a reed switch, consider the required current and power ratings; this MKA50202 model offers 5A and 250W. The normally open switch type means it closes its circuit in the presence of a magnetic field. For testing, simply bring a magnet near the 5x50mm glass tube; a multimeter can then confirm circuit closure. Ensure the dimensions fit your application, especially if integrating into tight spaces or existing barrel sensor housings. For critical applications, verify the magnetic field strength and distance required for reliable activation.