Intermediate relays rarely take center stage in substation design, yet they directly determine wiring quality, maintainability, EMC robustness, and long-term reliability in both primary and secondary circuits. For a complete overview of ODES relay and control products, visit www.odes-electric.com . Leveraging its protection-relay engineering background, ODES developed three plug-in relay families to cover the full range of substation and industrial applications: RT