The EF19-18.9 is an self-supplied electronic overload relay, which means no extra external supply is needed. It offers reliable and fast protection for motors in the event of overload or phase failure. Easy to use like a thermal overload relay and compatible with standard motor applications, the electronic overload relay is convincing, above all, due to its wide setting range, high accuracy, high operational temperature range and the possibility to select a trip class (10E, 20E, 30E). Further features are the temperature compensation, trip contact (NC), signal contact (NO), automatic- or manual reset selectable, trip-free mechanism, STOP- and Test function and a trip indication. The overload relays are connected directly to the contactors. Single mounting kits are available as accessory. The EF19 and EF45 have ATEX and IECEx certification 1) Specifications Amperage Rating 18.9 A Contact Form 1NC-1NO Contact Rating 18.9 A at 690 VAC Dimensions 85 mm H x 44.4 mm W x 59.3 mm D Enclosure Type IP20 Frequency Rating 50/60 Hz Number of Poles 3 Series EF19 Temperature Rating -25 to 70 deg C Terminal Type Threaded