The **ME23XAX-R** is a specific model of a **Miniature Power Relay** manufactured by **CIT Relay & Switch**. It is designed for high-current switching applications where space is limited but reliability is paramount. --- ### 1. General Specifications The ME23 series is characterized by its small footprint and high switching capacity. Below is a breakdown of the core technical specifications for the **ME23XAX-R** model: | Feature | Specification | | :--- | :--- | | **Contact Arrangement** | 1A (SPST-NO - Single Pole Single Throw, Normally Open) | | **Contact Rating** | 30A @ 240VAC / 24VDC | | **Coil Voltage** | Typically 12VDC or 24VDC (Check specific suffix) | | **Max Switching Power** | 7200 VA / 720 W | | **Contact Material** | AgSnO₂ (Silver Tin Oxide) | | **Mounting Type** | PCB (Through-hole) | | **Environmental Protection** | Flux Tight (R-type designation) | --- ### 2. Part Number Breakdown Understanding the nomenclature helps identify the exact configuration of the relay: * **ME23**: The series identifier (Miniature Power Relay). * **X**: Typically indicates the contact material or a specific internal construction variant. * **A**: Refers to the Contact Form (A = SPST-NO). * **X**: Often a placeholder for coil sensitivity or specific voltage. * **-R**: Indicates the **Enclosure/Sealing**. "R" stands for **Flux Tight**, meaning the relay is protected against solder flux during the assembly process but is not fully hermetically sealed like a "Washable" (S) version. --- ### 3. Key Electronic Characteristics * **High Inrush Current:** Designed to handle high initial surges, making it ideal for motor starts or lamp loads. * **Dielectric Strength:** Usually rated at **2500Vrms** between coil and contacts, providing significant electrical isolation. * **Insulation Resistance:** Minimum of $100M\Omega$ at 500VDC. * **Operating Life:** * *Mechanical:* 10,000,000 operations. * *Electrical:* 100,000 operations (at rated load). --- ### 4. Common Applications Due to its 30A rating and compact size, the ME23XAX-R is commonly found in: 1. **HVAC Systems:** Controlling compressors and fan motors. 2. **Automotive Electronics:** Powering high-draw accessories or heaters. 3. **Industrial Controls:** Used in PLCs and automation panels. 4. **Domestic Appliances:** Washing machines, dishwashers, and microwave ovens. ---