Magnetic Reed Switch Door Sensor with Wire MC-38A (Normal Close)

Description of MC-38A

The MC-38A magnetic switch sensor comes in a pair consisting of a Reed Switch and a magnet. The wired part of the module is the reed switch, whereas the other part is the magnet. It is commonly used as a home security alarm system.

The sensor consists of two main parts, a magnet and as switch with terminals to connect the signal wires. The magnet mounts to a door or access panel, while the switch mounts to the frame. When the door is closed the two pieces should be in close contact of each other. When the door opens this distance increases, eventually toggling the switch. This allows to know when the door is open.

Features and Specifications of MC-38A

Below are some features and specifications of the MC-38A magnetic switch.

1. Model: MC-38A
2. Color: White
3. Voltage: DC 100-110V
4. Rated Power: 10W
5. Contact Capacity: 0.5Amp Current Switching Maximum
6. Operating distance: 15 – 25mm
7. Cable Length: 30cm ± 10mm
8. Sensor Output:Normally Closed(NC) (Switch is closed when the switch and magnet are together)

Note : The metal reeds on a normally-closed reed switch is closed when it is not near a magnet; as a magnet is brought close to it, a normally-closed switch will open

Applications of MC-38A

Here are some of the applications of this MC-38A module.

1. Can be used at doors or windows to know the open and closed state
2. Used to detect an intruder activity
3. Home Alarm system

2D Model of MC-38A

Below is the 2D model of the MC-38A module. It can be used to design custom footprints and be used in custom-designed printed circuit boards or CAD models.

Note: All the dimensions are in millimeters.