The **RXM2AB2FD** is a miniature plug-in electromechanical power relay belonging to the **Zelio Relay RXM** range manufactured by **Schneider Electric**. Below is a detailed breakdown of its electronic components, technical specifications, and physical architecture. --- ## 1. Core Technical Specifications The part number defines its specific electrical characteristics: | Feature | Specification | | :--- | :--- | | **Contact Configuration** | 2 C/O (Double Pole Double Throw - DPDT) | | **Control Circuit Voltage** | 110 V DC | | **Rated Operational Current** | 12 A (at 250V AC / 28V DC) | | **Conventional Enclosed Thermal Current** | 12 A | | **Shape of Pin** | Flat (Plug-in type) | | **Status LED** | Included (Indicates coil energization) | | **Control Type** | Lockable test button | --- ## 2. Component Analysis The RXM2AB2FD consists of several key electronic and mechanical sections: ### A. The Coil (The Input) * **Voltage:** 110 V DC. * **Function:** When 110V DC is applied, the coil creates an electromagnetic field that pulls the armature. * **Power Consumption:** Average consumption is approximately 0.9 W. ### B. The Contacts (The Output) * **Material:** Silver Alloy (AgNi). This material provides a good balance between electrical conductivity and resistance to "welding" or oxidation. * **Switching Capacity:** 3000 VA (AC) / 336 W (DC). * **Minimum Switching Capacity:** 170 mW at 10 mA, 17 V. ### C. Auxiliary Features 1. **Mechanical Indicator:** A mechanical flag that moves to show if the contacts have switched. 2. **LED Indicator:** A built-in green LED that lights up when the coil is energized, allowing for quick visual troubleshooting. 3. **Test Button:** A manual turquoise button that allows operators to mechanically force the contacts to change state for testing circuits without energizing the coil. --- ## 3. Wiring and Pin Layout The relay uses a standard pinout for the RXM range, typically mounted on a **ZRX** socket. ```text Pin Logic: - Pins 13-14: Coil Connections (+/- for DC) - Pins 9-12: Common (C) - Pins 1-4: Normally Closed (NC) - Pins 5-8: Normally Open (NO) ``` --- ## 4. Durability and Environment * **Mechanical Durability:** 10,000,000 cycles. * **Electrical Durability:** 100,000 cycles for resistive loads. * **Operating Temperature:** -40°C to 55°C. * **IP Degree of Protection:** IP40.