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Pepperl + Fuchs Relay Module KFD0-RSH-1.4S.PS2 arrived.

April 10, 2020


1-channel signal conditioner, 24 V DC supply (loop powered), Logic input 20 V DC ... 26.5 V DC, non-polarized, Fail-safe relay contact output for de-energized and energized to safe function , Test pulse immunity, Up to SIL 3 acc. to IEC 61508.

Pepperl + Fuchs Signal Conditioners K-System Relay Module KFD0-RSH-1.4S.PS2

Function: KFD0-RSH-1.4S.PS2

This signal conditioner is a relay module that is suitable for safely switching applications of a load circuit. The device isolates load circuits up to 230 V and the 24 V control interface.

The energized to safe (ETS) function is permitted for SIL3 applications with output I. The de-energized to safe (DTS) function is permitted for SIL3 applications with output II. Additionally a dual pole switching (DPS) is possible by combination of output I and II.

The relays are of diverse design, but have a common effect on the individual switch output. For checking of these relays, terminals 10, 11 and 12 can be used. The test mode will be indicated by LEDs according to NAMUR NE44.

The outputs are galvanically isolated from the input. Output II is protected against contact welding by a fuse depending on the used terminal.


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Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,200 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.   © 2019 All Rights Reserved.