If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. ABB REF615 Feeder Protection And Monitoring Device Engineered Protection with Smart Grid Readiness The ABB REF615 Feeder Protection and Monitoring Device is a highly advanced intelligent electronic device (IED) built for modern power distribution systems. As part of ABB’s Relion® 615 ser *Your Name: *Your Email: *Your Name: *Vdcode: Submit