FieldConnex® Fieldbus, Fieldbus power supply, module for fieldbus power hub, Output: 21 ... 23 V/500 mA, Voltage limitation for Entity ic and Ex nL, With galvanic isolation, Installation in Zone 2/Class I, Div. 2, For (FOUNDATION Fieldbus H1) and PROFIBUS PA, IECEx approval, International, Europe, USA, Canada, Device coupler location: Zone 2 - high-power trunk, Instrument location / spur protection: Zone 2 - all relevant types of protection, Function: Fieldbus Power Supply