The **RXM2AB1MD** is a specific model of a miniature plug-in relay from the **Zelio Relay** range manufactured by Schneider Electric. This component is widely used in industrial automation and control systems for signal switching and electrical isolation. --- ### 1. General Specifications The part number can be decoded to understand its primary characteristics: | Feature | Specification | | :--- | :--- | | **Product Series** | Zelio Relay (RXM) | | **Contact Type** | 2 C/O (Changeover / DPDT) | | **Control Circuit Voltage** | 220 V DC | | **Rated Current** | 12 A | | **Mounting Type** | Plug-in (Socket compatible) | | **Mechanical Indicator** | Yes (Built-in) | --- ### 2. Detailed Technical Parts #### A. Coil Characteristics The coil is the electromagnet that actuates the relay contacts. * **Control Voltage:** 220 V DC. * **Average Consumption:** Approximately 0.9 W. * **Drop-out Voltage Threshold:** $\ge$ 0.1 Uc (The voltage below which the relay is guaranteed to release). #### B. Contact System The RXM2AB1MD features two sets of changeover contacts (Double Pole, Double Throw). * **Contact Material:** Silver Alloy (AgNi), which provides a good balance between electrical conductivity and resistance to oxidation. * **Switching Capacity:** * 12 A at 250 V AC (Resistive load). * 12 A at 28 V DC (Resistive load). * **Minimum Switching Current:** 10 mA at 17 V. #### C. Human-Machine Interface (HMI) To assist with maintenance and troubleshooting, the physical body of the relay includes: 1. **Mechanical Indicator:** A small mechanical flag that moves when the contacts are energized. 2. **Lockable Test Button:** Allows technicians to manually force the contacts into the active state to test the circuit without applying coil power. 3. **LED (Optional depending on sub-version):** Usually indicates when the coil is energized. --- ### 3. Compatible Sockets and Accessories Since this is a plug-in relay, it must be paired with a socket to be wired into a control panel. | Accessory Type | Model Example | Connection Style | | :--- | :--- | :--- | | **Socket** | RXZE2M114 | Screw connector | | **Socket** | RXZE2S108M | Separate contact socket | | **Protection Module** | RXZL300 | Diode/Varistor (suppresses voltage spikes) | | **Plastic Hold-down Clip** | RXZ400 | Secures relay to the socket | --- ### 4. Application Use Cases * **Isolation:** Separating a low-power PLC output from a high-power load. * **Multiplication:** Using one signal to switch two independent circuits simultaneously. * **Inversion:** Using the Normally Closed (NC) contacts to invert a signal logic. ---