Pepperl+Fuchs KFU8-CRG2-Ex1.D Power Supply (255622)

The Pepperl Fuchs KFU8 CRG2 Ex1 D is a universal 1-channel isolated barrier and transmitter power supply for intrinsic safety applications. It supports 2-wire and 3-wire transmitters as well as 2-wire current sources and offers flexible current output (0/4–20 mA), dual relay outputs, and programmable alarm functions. The unit can be configured via keypad or PACTware and is suitable for hazardous areas up to SIL 2.

Technical Specifications

Model: KFU8-CRG2-Ex1.D
Function: Isolated barrier / transmitter power supply
Input Signal: 0/4–20 mA (2-wire, 3-wire transmitters or current sources)
Output Signal: 0/4–20 mA active current source
Relay Outputs: 2 contact outputs (configurable)
Power Supply: 20–90 V DC or 48–253 V AC
Power Consumption: 2.2 W / 4 VA
Fault Signal: NAMUR NE43 compliant (≤3.6 mA, ≥21.5 mA)

Functional Features

• Alarm Configuration: High/low alarm thresholds with adjustable delay (0–250 s)
• Linearization: Custom curve correction up to 20 points
• Configuration: Via keypad or PACTware (FDT/DTM)
• Display: LED indicators with physical unit display
• Diagnostics: Line fault detection (LFD), sensor error detection

Mechanical & Installation

• Mounting: DIN rail 35 mm (EN 60715)
• Dimensions: 40 × 119 × 115 mm (W × H × D)
• Weight: Approx. 300 g
• Housing Type: C2, IP20-rated

Compliance & Safety

• Safety Integrity Level: SIL 2 (IEC/EN 61508, IEC/EN 61511)
• ATEX Marking: II (1)G / II (1)D / I (M1) [Ex ia]
• IECEx Certification: Yes (IECEx TUN 09.0007)
• FM & cFMus Approved: Yes (Control drawing 16-554FM-12)
• CE / RoHS: Fully compliant

Electrical Isolation

• Galvanic Isolation: Reinforced isolation (300 Veff) between input/output/power
• Output Load: Max. 650 Ω (analog output)
• Relay Contact Rating: 250 V AC / 2 A or 40 V DC / 2 A (resistive)

Key Features & Benefits

✅ Universal Compatibility. Accepts both 2-wire and 3-wire sensors, as well as current sources.

✅ Dual Relay Alarms. Fully configurable for high/low thresholds.

✅ Flexible Power Supply. Operates on wide AC/DC voltage ranges.

✅ Integrated Diagnostics. LFD and NAMUR-compliant fault signaling.

✅ SIL 2 Certified. Suitable for safety-instrumented process loops.

📦 Order the Pepperl+Fuchs KFU8-CRG2-Ex1.D Today from Drive Outlet Megastore

Power, monitor, and protect your process instrumentation with the Pepperl+Fuchs KFU8-CRG2-Ex1.D — a rugged transmitter supply and isolated barrier solution with global certifications and SIL 2 functionality.

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Intrinsically Safe. Universally Compatible. Drive Outlet Megastore Certified.