✅ Schneider Electric RUMC31FD – Universal Plug-in Relay, 3 C/O Contacts, 10 A, 110V DC Coil Part No.: RUMC31FD The Schneider Electric RUMC31FD is a durable and high-efficiency universal plug-in relay from the Harmony RUM series, built for use with 110V DC control voltage. It offers 3 changeover (3 C/O) contacts with a 10 A rating, making it suitable for heavy-duty DC switching in industrial automation, power distribution panels, and transportation systems. The relay’s plug-in design with cylindrical pins supports fast installation and replacement, while a lockable manual test button provides enhanced functionality during testing and commissioning. Its transparent IP40-rated cover enables easy visual monitoring of contact position. Designed for endurance, the RUMC31FD delivers 5 million mechanical cycles and 100,000 electrical operations. 🔧 Technical Specifications Attribute Details Product Type Universal Plug-in Relay Range Harmony Electromechanical Relays Series Name RUM Series Part Number RUMC31FD Contact Configuration 3 C/O (Changeover Contacts) Rated Current [Ithe] 10 A Control Circuit Voltage [Uc] 110V DC Coil Resistance High-ohmic, suited for 110V 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 ✔ Certified for IEC, UL, and CSA standards 🔩 Applications: Optimized for use in 110V DC control environments such as power substations, utility automation, railway control systems, and industrial DC switching applications.