Pepperl Fuchs KFD2-UFC-Ex1.D Frequency Converter (231194)
P&F KFD2-UFC-Ex1.D is a 1-channel frequency converter and trip amplifier designed for use in intrinsically safe environments. It supports NAMUR sensors or dry contacts with input frequencies from 1 mHz to 5 kHz, converting digital input signals into adjustable analog 0/4–20 mA outputs. With integrated relay, transistor outputs, line fault detection, and startup override, it is ideal for alarm, monitoring, and control functions in Ex-rated zones.
Technical Specifications
- Model: KFD2-UFC-Ex1.D
- Function: Frequency Converter with Trip Values
- Channels: 1
- Input Signal: NAMUR sensors or dry contacts
- Input Frequency: 0.001 … 5000 Hz
- Analog Output: 0/4 … 20 mA
- Relay Outputs: 2 changeover relays (terminals 10–12, 16–18)
- Transistor Output: 1 passive electronic (terminals 19+, 20-)
- Power Supply: 20 … 30 V DC (Power Rail or terminals 23+, 24-)
- Mounting: 35 mm DIN rail (EN 60715)
- Connection Type: Screw terminals
Electrical Features
- Line Fault Detection: NAMUR-compliant (NE43)
- Start-Up Override: 1 … 1000 s (adjustable)
- Relay Contact Rating: 253 V AC / 2 A, 40 V DC / 2 A
- Analog Load: Max. 650 Ω
- Resolution: 0.1% of value / < 10 µA (analog)
- Accuracy: < 20 µA analog / 0.1% frequency
- Response Time: < 200 ms
- Configuration: Via control panel or PACTware
Environmental Conditions
- Temperature Range: -20 … 60 °C
- Protection: IP20
- Weight: Approx. 300 g
- Dimensions: 40 x 119 x 115 mm (W x H x D)
- Housing Type: C2
- Approvals: ATEX, IECEx, UL
Hazardous Area Compliance
- Zone Classification: Zone 0, 1, 2 / Div. 1, 2
- ATEX Marking: II (1) G [Ex ia Ga] IIC / II (1) D [Ex ia Da] IIIC
- IECEx Marking: [Ex ia Ga] IIC, [Ex ia Da] IIIC, Ex nA IIC T4 Gc
- SIL Rating: SIL 2 compliant (IEC/EN 61508 / 61511)
Key Features & Benefits
✅ Versatile I/O: Supports NAMUR or mechanical contacts, with relay, transistor, and analog outputs.
✅ Trip Alarm & Amplifier: Integrated trip value display and switching logic.
✅ Adjustable Start Delay: Configurable start-up override from 1 to 1000 seconds.
✅ HART-Compatible: Seamless integration with Ex field sensors and diagnostic tools.
✅ SIL 2 Safety: Designed for use in safety-instrumented systems.
📦 Buy Pepperl+Fuchs KFD2-UFC-Ex1.D from Drive Outlet Megastore
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An advanced frequency converter with alarms, HART compatibility, and SIL 2 certification — ideal for frequency-based process control in hazardous areas.
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