ETR-4000

ETR-4000

Eaton’s ETR-4000 transformer protection relay has been designed for maximum user flexibility and simplicity. Multiple current inputs provide primary protection, control and back-up protection of transformers, including current differential, restricted ground differential, and overcurrent protection. The ETR-4000 has mass memory for data storage, eight programmable binary inputs, and it can be powered from 19-300 Vdc or 40-250 Vac auxiliary power.