2023-03
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H-System – Isolated Barriers and Termination Boards
Mounting and Installation
Connecting the Field Side
Connect the field devices to the termination board via the screw terminals or spring terminals.
Connecting the Power Supply and Fault Indication Output
Connect the power supply and fault indication output via the screw terminals or spring
terminals.
Danger!
Explosion hazard from wrong separation distances
If you do not observe the minimum separation distance between 2 intrinsically safe circuits,
this can lead to added currents or voltages. This can result in a current/voltage flashover
generating sparks. The sparks can ignite the surrounding potentially explosive atmosphere.
Ensure that you observe all separation distances between 2 adjacent intrinsically safe circuits
according to IEC/EN 60079-14.
Danger!
Explosion hazard from wrong separation distances
If you do not observe the minimum separation distances between intrinsically safe circuits
of associated apparatus and non-intrinsically safe circuits, this can lead to added currents or
voltages. This can result in a current/voltage flashover generating sparks. The sparks can
ignite the surrounding potentially explosive atmosphere.
Ensure that you observe the compliance of the separation distances to all non–intrinsically safe
circuits according to IEC/EN 60079–14.
Danger!
Danger to life from electric shock
Absent or insufficient insulation can result in electric shock.
Only connect supplies that provide protection against electric shock (e. g. SELV or PELV).
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