Eaton ZB65-57 overload relay with screw connection. The 278459 XTOB057DC1 relay is suitable for protection of Ex e-motors. It features test/off button, reset pushbutton manual/auto and trip-free release. It provides finger and back-of-hand proof protection against direct contact when actuated from front (EN 50274). Suitable for use with DILM40, DILM50, DILM65, DILM72, DILMF40, DILMF50, DILMF65, DIULM40, DIULM50, DIULM65, SDAINLM70, SDAINLM90, SDAINLM115.