Pepperl+Fuchs KCD2-SR-Ex2 (185533) | 2-Channel NAMUR Switch

Pepperl+Fuchs KCD2-SR-Ex2 | 2-Channel Switch Amplifier for Inductive NAMUR Sensors – Part No. 185533

Overview

The KCD2-SR-Ex2 (185533) by Pepperl+Fuchs is a 2-channel isolated switch amplifier designed to interface with NAMUR-type inductive sensors or mechanical contacts located in hazardous areas. It transfers binary signals safely to control systems in the safe area, providing relay contact outputs for reliable switching.

This device operates on 24V DC and features SIL 2 (SC 3) certification according to IEC/EN 61508, making it ideal for safety-critical and general-purpose automation applications. It is suitable for use with proximity sensors and other field devices that require intrinsic safety.

Key Features

• Part Number: 185533

• Input Type: NAMUR sensors or mechanical contacts (Zone 0/1)

• Output Type: Relay contact (2 SPDT relays)

• Channels: 2 isolated channels

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

• Mounting: DIN rail, 12.5 mm housing width

• SIL 2 (SC 3) – Certified per IEC/EN 61508

• Line Fault Detection: Short circuit and open circuit monitoring

• Galvanic Isolation: 3-way isolation between input, output, and power

• Status LEDs: Input/output indicators for diagnostics

Technical Specifications

• Model: KCD2-SR-Ex2

• Manufacturer: Pepperl+Fuchs

• Part Number: 185533

• Input: NAMUR (IEC 60947-5-6)

• Output: 2 x SPDT relay contacts (max. 250 V AC / 2 A)

• Supply Voltage: 24 V DC (19.2–30 V)

• Power Consumption: ≤ 1 W

• Response Time: <10 ms

• Housing Width: 12.5 mm

• Operating Temp: –20 °C to +60 °C

• Mounting: DIN rail (EN 60715)

• Protection Rating: IP20

• Approvals: ATEX, IECEx, UL, SIL2, CE

Applications

• Hazardous Area Signal Transfer – From NAMUR inductive sensors to control rooms

• Intrinsic Safety Circuits – Zone 0/1 compatible field device connections

• Automation Systems – Input isolation for PLC/DCS integration

• SIL-Compliant Installations – Process safety applications requiring SIL 2

Why Choose the KCD2-SR-Ex2 (185533)?

• Two-channel operation with compact DIN housing

• Certified for SIL 2 applications with diagnostic monitoring

• Trusted performance for NAMUR proximity sensors in Ex zones

• Fast integration with Power Rail and safe area controls

Order Now

Pepperl+Fuchs KCD2-SR-Ex2 (185533) is in stock and available for global shipping. 

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