Product Description

Pepperl+Fuchs KFD2-SH-Ex1 Intrinsically Safe Switch Amplifier / Isolation Barrier

The Pepperl+Fuchs KFD2-SH-Ex1 is a highly reliable 1-channel isolated barrier from the renowned K-System series, engineered specifically for intrinsically safe switch inputs. It securely interfaces sensors, such as SH-Sensors and STN-Sensors, located in hazardous explosive areas with control systems in safe areas. Powered by a 20-35V DC supply, this switch amplifier features a robust relay output alongside a dedicated error output for comprehensive system diagnostics and monitoring. Backed by ATEX, TÜV, and FM approvals (Ex ia IIC), the KFD2-SH-Ex1 guarantees top-tier safety, signal isolation, and operational reliability in demanding industrial environments with ambient temperatures up to 60°C.

Technical Specifications:

  • Brand: Pepperl+Fuchs

  • Model Number: KFD2-SH-Ex1 (Part No. 40903)

  • Product Type: Isolated Barrier / Switch Amplifier (1-Channel)

  • Supply Voltage: 20 – 35 V DC / 150 – 85 mA

  • Inputs (Hazardous Area): SH-Sensor, STN-Sensor

  • Relay Output (Safe Area): AC ≤ 50V / 1A (p.f. 0.7); DC 24V / ≤ 1A

  • Error Output: DC 10 – 30V / ≤ 7mA

  • Intrinsic Safety Maximum Values: Uo = 9.56V, Io = 16.8mA, Po = 41mW, Co = 3.6µF, Lo = 130mH

  • Certifications: ATEX (PTB 00 ATEX 2042, TÜV 99 ATEX 1493 X), FM Approved, CE 0102

  • Protection Class: II 1/2 G D [Ex ia] IIC / II 3 G Ex nA C IIC T4

  • Maximum Ambient Temperature: 60°C

Pepperl+Fuchs KFD2-SH-Ex1 Intrinsically Safe Switch Amplifier / Isolation Barrier Description

Pepperl+Fuchs KFD2-SH-Ex1 Intrinsically Safe Switch Amplifier / Isolation Barrier

Shop the Pepperl+Fuchs KFD2-SH-Ex1 (Part No. 40903) 1-channel intrinsically safe isolation barrier. This high-performance K-System switch amplifier connects hazardous area sensors to safe zones, featuring relay and error outputs, 20-35V DC supply, and ATEX/FM approvals for maximum industrial safety.