PEPPERL+FUCHS Intrinsic Safety Barrier Switch Amplifier KFD2-ST3-Ex1.LB

PEPPERL+FUCHS Switch Amplifier KFD2-ST3-Ex1.LB

1-channel isolated barrier

24 V DC supply (Power Rail)

Dry contact or NAMUR inputs

2 active transistor outputs

Usable as signal splitter (1 input and 2 outputs)

Reversible mode of operation

Line fault detection (LFD)

Up to SIL 2 (SC 3) acc. to IEC/EN 61508

Function

This isolated barrier is used for intrinsic safety applications.

The device transfers digital signals (NAMUR sensors or dry contacts) from a hazardous area to a safe area. The input controls two active transistor outputs.

Via switches the mode of operation can be reversed and the line fault detection can be switched off. Via switch the function of the second output can be defined as a signal output or an error output. A fault is signalized by LEDs acc. to NAMUR NE44 and a separate collective error message output.