PEPPERL+FUCHS Special Offer ! Special Rate ! Switch Amplifier KHA6-SH-Ex1 Intrinsic Safety Barriers Isolated Barriers K-System
PEPPERL+FUCHS Switch Amplifier KHA6-SH-Ex1 Intrinsic Safety Barriers Isolated Barriers K-System
Switch Amplifier KHA6-SH-Ex1
· 1-channel isolated barrier
· 115/230 V AC supply
· Input for approved dry contacts or SN/S1N sensors
· 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
This isolated barrier is used for intrinsic safety applications. 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 output with 3 form A normally open relay contacts (one is in series to the 2 output relay contacts for the safety function),
one output with 1 form A normally open relay contact, and one passive transistor output.
Unlike an SN/S1N series NAMUR proximity sensor, a mechanical contact, requires a 10 kilohm resistor to be placed across the contact in addition to a 1.5 resistor in series.
Lead breakage (LB) and short circuit (SC) conditions of the control circuit are continuously monitored.
During an error condition, fault output energizes and outputs I and II de-energize.
For safety applications up to SIL3, output I must be used.