Pepperl+Fuchs KCD2-SR-Ex2 and KFD2-SH-Ex1.T Switch Amplifier, P+F Safety Barriers

Pepperl+Fuchs KCD2-SR-Ex2 and KFD2-SH-Ex1.T Switch Amplifier, Pepperl+Fuchs Safety Barriers. This isolated barrier is used for intrinsic safety applications.

Pepperl+Fuchs Switch Amplifier KCD2-SR-Ex2
● 2-channel isolated barrier
● 24 V DC supply (Power Rail)
● Dry contact or NAMUR inputs
● Relay contact output
● Line fault detection (LFD)
● Housing width 12.5 mm
● Up to SIL 2 acc. to IEC 61508

Pepperl+Fuchs Function: KCD2-SR-Ex2
The device transfers digital signals from NAMUR sensors or dry contacts from the hazardous area to the non-hazardous area.
The proximity sensor or the mechanical contact controls the control side load for a relay contact output. The device output changes the state when the input signal changes the state.
Via switches the mode of operation can be reversed and the line fault detection can be switched off.
During a fault condition, the relay reverts to its de-energized state and the LEDs indicate the fault according to NAMUR NE 44.
If the device is operated via Power Rail, additionally a collective error message is available.
Due to its compact housing design and low heat dissipation, this device is useful for detecting positions, end stops, and switching states in space-critical applications.

Pepperl+Fuchs Switch Amplifier KFD2-SH-Ex1.T
● 1-channel isolated barrier
● 24 V DC supply
● Input for approved dry contacts or SN/S1N sensors
● Active voltage output
● Relay contact output
● Fault indication output
● Line fault detection (LFD)
● Up to SIL 3 acc. to IEC 61508
● Up to PL d acc. to EN/ISO 13849

Pepperl+Fuchs Function: KFD2-SH-Ex1.T
The device transfers digital signals (SN/S1N proximity sensors or approved dry contacts) from a hazardous area to a safe area.
The input controls one active voltage output and one relay contact output with a NO contact.
Unlike an SN/S1N series proximity sensor, a mechanical contact requires a 10 kΩ resistor to be placed across the contact in addition to a 1.5 kΩ resistor in series.
Lead breakage (LB) and short circuit (SC) conditions of the control circuit are continuously monitored.
During an fault condition, the fault indication output and the outputs I and II de-energize.
For safety applications up to SIL3, output I must be used. For safety applications up to SIL2, output I and output II can be used.