Overcurrent Relay AI 838 On the overcurrent relay AI 838 the scale is adjusted to the response value. When the current exceeds the setting value the relay switches on. The contact resets, as soon as the current goes under the setting value x hysteresis. Features . According to nach IEC/EN 60 255-1 . Single-phase . Without auxiliary supply . Measuring ranges from 0.5 to 16 A . Settable response value . 1 changeover contact . Width 45 mm Technical specifications Width: 45mm Enclosure design: Switch cabinet 1- / 3-phase: 1 Output contacts: 1 C/O contact Auxiliary voltage: Without Type: AI 838 Measuring range: AC, DC 0,5 - 16A Manufacturer: E. Dold & Söhne GmbH & Co. KG Type: AI 838 AC50/60HZ 0,5-1A Art. No.: 0000864