Pepperl+Fuchs H-System Isolated Barriers and Termination Boards for Triconex Tricon CX

Product Specifications

Function

Isolated barriers are used to protect intrinsically safe circuits in explosive areas.

In addition to the required current, voltage and power limitation, the isolated

barriers have a galvanic isolation between the field circuit and the controller.

The H-System isolated barriers are mounted on termination boards. Pre-wiring

is possible on termination boards. To close the signal circuit, the isolated barriers

are simply plugged in.

The isolated barriers can be replaced during live operation when the wiring is

connected.

Generic and control-system specific termination boards are available in the

H-System.

Termination boards can be adapted to specific input/output requirements.

These requirements can be implemented via

• Various connectors to the controller

• Various terminals to the field device

• A large selection of isolated barriers

Isolated Barriers

H-System isolated barriers cover all functions and the interoperability of the

H-System. The pin assignment and terminal designations are consistent for

all termination boards. EachH-System isolated barrier can therefore be

mounted in each termination board slot. The termination board can be coded

together with the isolated barriers.

This prevents the isolated barriers being mixed up on the termination board.

The safety-relevant data for the connected field devices is backed up.

Termination Boards

Termination boards form the wiring level for field and control signals. The

isolated barriers are mounted on termination boards. The isolated barriers are

connected with the field and control side via the termination boards. Once the

isolated barrier is mounted, the signal circuit between the field and control side

is closed.