The **M2RS1-3Z-R** is a high-performance **Magnetic Reed Sensor** typically used in industrial automation, security systems, and proximity sensing applications. It is designed to detect the presence of a magnetic field to open or close an electrical circuit. --- ### 1. Technical Specifications The following table summarizes the core electronic and physical characteristics of the M2RS1-3Z-R: | Feature | Specification | | :--- | :--- | | **Type** | Magnetic Reed Proximity Sensor | | **Contact Form** | Form C (SPDT - Single Pole Double Throw) | | **Switching Voltage** | Max 175 VDC / 125 VAC | | **Switching Current** | Max 0.25 A | | **Carry Current** | Max 1.5 A | | **Contact Rating** | 5 Watts | | **Operating Temperature** | -40°C to +105°C | | **Housing Material** | Robust Thermoplastic / Metal (depending on variant) | | **Termination** | Wire Leads (R indicates specific cable/ribbon exit) | --- ### 2. Functional Description The device operates on the principle of a **Reed Switch**. It contains two or three flexible metal reeds hermetically sealed in a glass tube. * **Operation:** When a permanent magnet or electromagnet comes within the "Operating Range," the magnetic flux pulls the internal reeds together (or pushes them apart). * **Form C (SPDT):** Unlike simple ON/OFF switches, this sensor has three terminals: 1. **Common (COM)** 2. **Normally Open (NO)** 3. **Normally Closed (NC)** This allows the sensor to toggle between two states, making it ideal for safety circuits where "Normally Closed" monitoring is required. --- ### 3. Wiring Configuration The wiring for the M2RS1-3Z-R usually follows a standard color-coded or 3-wire scheme to support the SPDT functionality: ```python # Conceptual Wiring Schematic # --------------------------- # [Black] --- Common (COM) # [Red] --- Normally Open (NO) -> Closes when Magnet is near # [White] --- Normally Closed (NC) -> Opens when Magnet is near ``` --- ### 4. Key Advantages * **Zero Power Consumption:** The sensor is passive and does not require power to operate; it only switches the load. * **Environmental Resistance:** Because the contacts are hermetically sealed, they are protected from dust, corrosion, and oxidation. * **High Reliability:** Capable of millions of switching cycles under low-load conditions.