Undervoltage Relay IL 9071 Monitoring of three-phase voltage systems to identify undervoltage, asymmetry or phase failure and switching-on of safety lighting in accordance with DIN VDE 0108. Features . According to IEC/EN 60255-1 . Identification of - Undervoltage - Phase failure - Asymmetry also with reverse voltage - Missing neutral in the system - Broken neutral on IL/SL 9071 - Neutral exchanged against phase . Single phase connection possible . Fixed setting value (variable as an option) . De-energized on trip . LED indicator . With safe disconnection according to IEC/EN 61140, IEC/EN 60947-1 between the Measuring Circuit and the contacts . Independant of phase sequence . 2 changeover contacts . According to DIN VDE 0100-710 (for rooms used for medical purposes) as an option . Devices available in 2 enclosure version: IL 9071: Depth 61 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43880 SL 9071: Depth 98 mm with terminals at the top for cabinets with mounting plate and cable duct . Width 35 mm Technical specifications Width: 35mm Operate delay: Yes Enclosure design: Distribution board 1- / 3-phase: 3, 1 Output contacts: 2 C/O contacts Auxiliary voltage: Without Type: IL 9071 Nominal voltage max.: 3/N AC 500/290V Manufacturer: E. Dold & Söhne GmbH & Co. KG Type: IL9071.12 3/N AC415/240V 0,7UN4% Art. No.: 0037525