Eaton Eaton transformer relay
EatonÕs Transformer Relays (ETR4000 and ETR5000) provide users with superior control and backup protection. Instantaneous overcurrent elements allow for quick clearing of severe internal or external faults, and maintenance mode enhances overall safety and protection by reducing fault clearing time and lowering incident energy levels. The ETRÕs zone-selective interlocking feature and trip and event recording feature help reduce troubleshooting time, maintenance requirements, and overall costs.