Field device coupler

All device couplers use the efficient High Power Trunk concept and are optimized for a variety of applications.
R. STAHL's I.S. field device couplers are available with four or eight channels in two versions: A Zone 1 version version, or alternatively, a cost-optimized Zone 2 and Class I Div.2 version. All I.S. couplers are galvanically isolated and can be operated with Zone 1 and Class I Div.1 fieldbus devices using the FISCO or Entity concept.
Zone 1 Ex e couplers are suitable for four or eight non-intrinsically safe fieldbus devices. Zone 2 Ex n / Class I Div.2 NI couplers are available with four, eight or 12 channels for ic or non-incendive field wiring and non-intrinsically safe fieldbus devices.
The power management function of all field device couplers keeps the current load on the trunk as low as possible at all times. Start-up currents and short-circuit currents are kept to a minimum.