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Pepperl+Fuchs KFD2-EB2.R4A.B

by Pepperl+Fuchs

OverviewThe Pepperl+Fuchs KFD2-EB2.R4A.B (part number 189784) is a sophisticated redundant power module engineered to provide a stable and continuous 24V DC power supply to DIN rail-mounted equipment within intrinsically safe control systems. Developed for environments demanding high availability, this device supports a dual input system, guaranteeing that connected isolators and barriers receive up to 4 Amperes without interruption. Its robust construction and advanced functionalities make it an essential component for industrial automation, particularly where uptime and safety are paramount. The KFD2-EB2.R4A.B integrates smoothly into existing infrastructure, enhancing system integrity.Key Features Dual Redundancy: Accepts two separate 24 V DC power sources, protecting against power outages and ensuring ongoing system functionality. High Current Output: Delivers up to 4 A to the Power Rail, adequate for numerous interface modules. Broad Input Voltage Range: Functions efficiently with input voltages between 20 V DC and 30 V DC, adjusting to various power sources. Integrated Fault Detection: Includes a relay output for remote error alerts and clear LED indicators (Green for power, Red for fault) for immediate status assessment. Compact Design: A slim 20 mm width enables dense mounting on 35 mm DIN rails, maximizing panel space. Replaceable Fuse: Features an accessible 5 A glass fuse, simplifying maintenance tasks and reducing downtime. Wide Operating Temperature: Reliably operates in challenging conditions, with an ambient temperature range of -40 °C to +60 °C, extendable to +70 °C with proper air circulation. Technical Specifications Model: KFD2-EB2.R4A.B Part Number: 189784 Input Voltage: 20 to 30 V DC Output Current: 4 A max. to Power Rail Output Voltage: ≥ input voltage - 0.6 V Fuse Rating: 5 A replaceable (glass) Power Dissipation: ≤ 2.4 W Fault Relay Output: Max 30 V AC / 2 A or 40 V DC / 2 A; configurable for NO or NC switching; Delay: ~20 ms energized/de-energized Indicators: Green LED (Power ON), Red LED (Error / fault) Ambient Temperature Range: -40 °C to +60 °C (extendable to 70 °C with vertical spacing) Protection Class: IP20 Mounting: 35 mm DIN rail (EN 60715) Dimensions: 20 mm (W) × 119 mm (H) × 115 mm (D) Weight: Approximately 150 g ApplicationsThe Pepperl+Fuchs KFD2-EB2.R4A.B redundant power supply is highly adaptable for numerous industrial settings where consistent power and reliability are crucial: Process Control Panels: Provides dependable and redundant power to critical DIN rail isolators, signal conditioners, and field devices, ensuring continuous process operation. Hazardous Area Installations: Specifically designed for safe deployment in Zone 2 hazardous areas, offering enhanced safety and operational integrity for intrinsically safe circuits with Power Rail systems. Redundant Safety Systems: Essential for safety-critical applications requiring fail-safe power delivery, contributing to the overall reliability and compliance of safety instrumented systems. Modular Automation Racks: Supports large-scale signal distribution setups in complex automation environments, effectively powering numerous interface modules and ensuring system stability. Critical Infrastructure: Indispensable for applications in power generation, water treatment, oil & gas, and chemical processing where any power interruption can have significant consequences. Why Choose?Selecting the Pepperl+Fuchs KFD2-EB2.R4A.B redundant power supply module represents an investment in superior reliability and uninterrupted operations. This module stands out due to its dual 24 V DC input capability, offering a robust defense against single-point power failures. With its generous 4 A output to the Power Rail, it can confidently power a substantial number of components, making it a cornerstone for resilient industrial systems.Order NowEnhance the reliability of your industrial automation systems today. Contact us for pricing and availability of the Pepperl+Fuchs KFD2-EB2.R4A.B redundant power supply module.FAQWhat is the primary function of the KFD2-EB2.R4A.B module?This module provides a redundant 24V DC power supply to DIN rail-mounted devices within intrinsically safe control systems, ensuring continuous operation even during power fluctuations or failures.Can this module be used in hazardous environments?Yes, the KFD2-EB2.R4A.B is designed for safe deployment in Zone 2 hazardous areas, offering enhanced safety for intrinsically safe circuits.What is the maximum output current capability?The module can deliver up to 4 Amperes to the Power Rail, sufficient for powering numerous interface modules.Does it have fault indication?Yes, it features integrated fault monitoring with a relay output for remote indication and local LED indicators (Green for Power OK, Red for Fault) for immediate status assessment.Is the fuse replaceable?Yes, it includes an accessible 5 A replaceable glass fuse, simplifying maintenance and minimizing downtime.

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