Pepperl+Fuchs KFD2-SRA-Ex4 |190176 4-Channel Relay Module, SIL 2

Pepperl+Fuchs KFD2-SRA-Ex4 | 4-Channel Intrinsically Safe Relay Interface – Part No. 190176

Overview

The KFD2-SRA-Ex4 (190176) from Pepperl+Fuchs is a 4-channel relay output interface module used to safely transmit control signals from the safe area to field devices in hazardous areas. Each channel features a form A (SPST NO) relay contact, suitable for switching solenoid valves, LED indicators, or audible alarms.

Designed for safety-critical operations, the device is SIL 2 certified per IEC/EN 61508, and features galvanic isolation, line fault detection, and a compact 40 mm DIN rail housing.

Key Features

• MFG Item Number: 190176

• Function: Relay output for hazardous area devices

• Channels: 4 independent relay outputs

• Relay Type: SPST (Form A, normally open)

• Rated Load: 250 V AC / 2 A or 30 V DC / 2 A

• Control Signal: 24 V DC logic input from safe area

• SIL 2 Certified – Systematic Capability SC 3

• Galvanic Isolation: Input, output, and power circuits isolated

• Mounting: DIN rail, 40 mm housing width

• LED Indicators: Channel status and diagnostics

Technical Specifications

• Model: KFD2-SRA-Ex4

• Item Number: 190176

• Relay Output: 4 x SPST (NO)

• Control Voltage: 24 V DC (20–30 V)

• Max Switching Current: 2 A

• Response Time: <10 ms

• Power Consumption: Approx. 2.6 W

• Isolation Voltage: 375 V AC

• Protection Class: IP20

• Temperature Range: –20 °C to +60 °C

• Mounting: DIN rail (EN 60715)

• Certifications: ATEX, IECEx, UL, CE, SIL 2

Applications

• Process Automation – Signal transmission from PLC to field devices

• Hazardous Areas – Intrinsically safe relay switching

• Safety Systems (SIS) – Control outputs in SIL 2 applications

• Alarm and Control Circuits – Switch indicators, buzzers, and valves

• Oil, Gas, and Chemical Industries – Reliable signal isolation and control

Why Choose the KFD2-SRA-Ex4 (190176)?

• 4-channel switching in a compact module

• SIL 2 compliance for safety-critical applications

• Independent channel control with galvanic isolation

• Trusted Pepperl+Fuchs reliability in harsh environments

Order Now

Pepperl+Fuchs KFD2-SRA-Ex4 (190176) is available for fast global delivery.

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