Pepperl+Fuchs KFD2-SOT3-Ex2 | 2-Channel Intrinsically Safe Switch

Pepperl+Fuchs KFD2-SOT3-Ex2 | 2-Channel Intrinsically Safe Switch Amplifier

Overview

The KFD2-SOT3-Ex2 (262108) is a dual-channel isolated switch amplifier from Pepperl+Fuchs, designed to transmit digital signals from hazardous area field devices to the safe area. Compatible with NAMUR sensors or dry contacts, this unit provides passive transistor outputs and supports SIL 2 functional safety.

Its compact design and fast response time make it ideal for process automation, chemical plants, and safety-critical systems requiring intrinsic safety compliance.

Key Features

• Input Type: NAMUR sensor or mechanical contact (2 channels)

• Output Type: Passive transistor (open collector)

• SIL Compliance: SIL 2 (SC3) per IEC/EN 61508

• Line Fault Detection: Short-circuit/open circuit detection (LFD)

• Mode Configuration: DIP-switch programmable (light/dark-on, LFD enable/disable)

• Power Supply: 24 V DC via terminals or Power Rail

• Mounting: DIN rail

Technical Specifications

• Model: KFD2-SOT3-Ex2

• Manufacturer Part Number: 262108

• Supply Voltage: 19–30 V DC

• Input Characteristics:

  • U₀ ≈ 10 V DC

  • I₀ ≈ 8 mA

  • Switching Threshold: 1.2 mA (ON), 2.1 mA (OFF)

• Output Rating:

  • Max 30 V DC

  • Max 100 mA (per output)

  • Short-circuit protected

• Response Time: < 200 µs

• Protection Class: IP20

• Ambient Temp Range: -20 °C to +60 °C

• Dimensions: 20 mm (W) × 119 mm (H) × 115 mm (D)

• Mounting Method: DIN rail (per EN 60715)

Applications

• Signal transfer from hazardous areas to PLC/DCS systems

• Oil & gas and petrochemical industries

• Explosion-proof instrumentation panels

• Safety-critical automation and control circuits

Why Choose the KFD2-SOT3-Ex2?

• Intrinsic safety certified with fast signal processing

• Compact, reliable, and DIN rail mountable

• Dual-channel efficiency in a single housing

• Easy configuration via DIP switches

Order Now

Fast shipping and worldwide delivery available.mplifier, NAMUR input, SIL 2, passive transistor output, DIN rail, intrinsic safety.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply