✅ Schneider Electric RUMC31MD – Universal Plug-in Relay, 3 C/O Contacts, 10 A, 220V DC Coil Part No.: RUMC31MD The Schneider Electric RUMC31MD is a rugged and efficient universal plug-in relay from the Harmony RUM series, designed for high-voltage DC control systems. Equipped with 3 changeover (3 C/O) contacts rated at 10 A, and a 220V DC control coil, this relay is ideal for switching applications in industrial environments where high-voltage DC logic or control circuits are used. The plug-in cylindrical pin design allows for quick installation, maintenance, and replacement. A lockable manual test button provides added flexibility for commissioning and diagnostics, while the transparent IP40-rated housing enables visual inspection of contact status. With high durability and electrical endurance, the RUMC31MD offers up to 5 million mechanical operations and 100,000 electrical switching cycles under resistive loads. 🔧 Technical Specifications Attribute Details Product Type Universal Plug-in Relay Range Harmony Electromechanical Relays Series Name RUM Series Part Number RUMC31MD Contact Configuration 3 C/O (Changeover Contacts) Rated Current [Ithe] 10 A Control Circuit Voltage [Uc] 220V DC Coil Resistance High-ohmic coil suitable for high-voltage DC Operating Time / Reset Time 20 ms / 20 ms Minimum Switching Capacity 170 mW at 10 mA, 17 V Maximum Switching Capacity 2500 VA / 280 W Electrical Durability 100,000 cycles (resistive load) Mechanical Durability 5,000,000 cycles Mounting Type Plug-in (Cylindrical Pins) Test Function Lockable Manual Test Button Insulation Voltage [Ui] 250 V IEC / 300 V UL/CSA Dielectric Strength 2500 V AC (coil/contact), 1500 V AC (between contacts) Protection Degree IP40 Ambient Operating Temperature -40°C to +55°C Pollution Degree 3 Standards IEC 61810-1, UL 508, CSA C22.2 No 14 Certifications RoHS, REACh, UL, CSA, EAC 📦 Packaging Details Unit Weight: ~0.086 kg Package Type: Single (PCE) Typical Package Dimensions (cm): 7.0 × 3.5 × 3.5 🌍 Environmental Compliance: ✔ RoHS Compliant ✔ REACh Compliant ✔ Meets global industrial standards 🔩 Applications: Ideal for high-voltage DC control circuits in industrial automation, railway signaling, process control, and other applications where robust relay switching is needed.