Pepperl Fuchs KFU8-UFC-Ex1.D

Frequency Converter with Trip Values

MPN: KFU8-UFC-Ex1.D
Category: K-System (DIN Rail Mounting)

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What is the Pepperl Fuchs KFU8-UFC-Ex1.D?

1-channel isolated barrier

Universal usage at different power supplies

Input for NAMUR sensors or dry contacts

Input frequency 1 mHz ... 5 kHz

Current output 0/4 mA ... 20 mA

Relay contact and transistor output

Start-up override

Line fault detection (LFD)

Up to SIL 2 acc. to IEC/EN 61508 / IEC/EN 61511

1-channel isolated barrier, Universal usage at different power supplies, Input for NAMUR sensors or dry contacts, Input frequency 1 mHz ... 5 kHz, Current output 0/4 mA ... 20 mA, Relay contact and transistor output, Start-up override, Line fault detection (LFD), Up to SIL 2 acc. to IEC/EN 61508 / IEC/EN 61511, Housing width: 40 mm, Number of channels: 1-channel, Trip relay, Start-up override, Frequency conversion, Rotation speed monitoring, Pulse divider

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	231197
Signal type	Digital Input
Lifecycle	Active (current Pepperl+Fuchs product)

Functional safety related parameters

Safety Integrity Level (SIL)

SIL 2

Supply

Connection	terminals 23, 24
Rated voltage	20 ... 90 V DC / 48 ... 253 V AC 50 ... 60 Hz Ur
Power dissipation/power consumption	≤ 2 W ; 2.5 VA / 2.2 W ; 3 VA

Interface

Programming interface

programming socket

Input

Connection side	field side
Connection	Input I: intrinsically safe: terminals 1+, 3- Input II: non-intrinsically safe: terminals 13+, 14-
Input I	sensor acc. to EN 60947-5-6 (NAMUR) or mechanical contact
Pulse duration	> 50 µs
Input frequency	0.001 ... 5000 Hz
Line fault detection	breakage I ≤ 0.15 mA; short-circuit I > 6.5 mA
Input II	startup override: 1 ... 1000 s, adjustable in steps of 1 s
Active/Passive	I > 4 mA (for min. 100 ms) / I < 1.5 mA
Open circuit voltage/short-circuit current	18 V / 5 mA

Output

Connection side	control side
Connection	output I: terminals 10, 11, 12 output II: terminals 16, 17, 18 outout III: terminasl 19+, 20- output IV: terminals 8+, 7-
Output I, II	signal, relay
Contact loading	250 V AC / 2 A / cos φ ≥ 0.7 ; 40 V DC / 2 A
Mechanical life	5 x 107 switching cycles
Energized/De-energized delay	approx. 20 ms / approx. 20 ms
Output III	electronic output, passive
Contact loading	40 V DC
Signal level	1-signal: (L+) - 2.5 V (50 mA, short-circuit/overload proof) 0-signal: switched off (off-state current ≤ 10 µA)
Output IV	analog
Current range	0 ... 20 mA or 4 ... 20 mA
Open loop voltage	max. 24 V DC
Load	max. 650 Ω
Fault signal	downscale I ≤ 3.6 mA , upscale ≥ 21.5 mA (acc. NAMUR NE43)

Transfer characteristics

Input I: Measuring range	0.001 ... 5000 Hz
Input I: Resolution	0.1 % of the measurement value , ≥ 0.001 Hz
Input I: Accuracy	0.1 % of the measurement value , > 0.001 Hz
Input I: Measuring time	< 100 ms
Input I: Influence of ambient temperature	0.003 %/K (30 ppm)
Output I, II: Response delay	≤ 200 ms
Output IV: Resolution	< 10 µA
Output IV: Accuracy	< 20 µA
Output IV: Influence of ambient temperature	0.005 %/K (50 ppm)

Galvanic isolation

Input I/other circuits	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output I, II/other circuits	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Mutual output I, II, III	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output III/power supply	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output III/start-up override	basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 Veff
Output III/IV	basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 Veff
Output IV/power supply	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Start-up override/power supply	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Interface/power supply	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Interface/output III	basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 Veff

Indicators/settings

Display elements	LEDs , display
Control elements	Control panel
Configuration	via operating buttons via PACTware
Labeling	space for labeling at the front

Directive conformity

Electromagnetic compatibility: Directive 2014/30/EU	EN 61326-1:2013 (industrial locations)
Low voltage: Directive 2014/35/EU	EN 61010-1:2010

Conformity

Electromagnetic compatibility	NE 21:2006
Degree of protection	IEC 60529:2001
Input	EN 60947-5-6:2000

Ambient conditions

Ambient temperature

-20 ... 60 °C (-4 ... 140 °F)

Mechanical specifications

Degree of protection	IP20
Connection	screw terminals
Mass	300 g
Dimensions	40 x 119 x 115 mm (1.6 x 4.7 x 4.5 inch) (W x H x D) , housing type C2
Mounting	on 35 mm DIN mounting rail acc. to EN 60715:2001

Data for application in connection with hazardous areas

EU-type examination certificate	TÜV 99 ATEX 1471
Marking	II (1)G [Ex ia Ga] IIC [exsign] II (1)D [Ex ia Da] IIIC [exsign] I (M1) [Ex ia Ma] I
Supply: Maximum safe voltage	253 V AC / 125 V DC (Attention! Um is no rated voltage.) Um
Input I	terminals 1+, 3-: Ex ia
Voltage Uo	10.1 V
Current Io	13.5 mA
Power Po	34 mW (linear characteristic)
Input II	terminals 13+, 14- non-intrinsically safe
Maximum safe voltage Um	40 V (Attention! The rated voltage can be lower.)
Output I, II	terminals 10, 11, 12; 16, 17, 18 non-intrinsically safe
Maximum safe voltage	253 V (Attention! The rated voltage can be lower.) Um
Contact loading	253 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load (TÜV 99 ATEX 1471)
Output III	terminals 19+, 20- non-intrinsically safe
Maximum safe voltage Um	40 V (Attention! Um is no rated voltage.) Um
Output IV	terminals 8+, 7- non-intrinsically safe
Maximum safe voltage	40 V DC (Attention! Um is no rated voltage.) Um
Interface	RS 232
Maximum safe voltage	40 V (Attention! Um is no rated voltage.) Um
Galvanic isolation: Input I/other circuits	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity: Directive 2014/34/EU	EN IEC 60079-0:2018 , EN 60079-11:2012

International approvals

FM approval: Control drawing	16-538FM-12
IECEx approval: IECEx certificate	IECEx TUN 04.0007
IECEx approval: IECEx marking	[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I

General information

Supplementary information

Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Downloads & documentation

Official documents from Pepperl Fuchs, downloaded directly from the manufacturer.

Data sheets & manuals

CAD & dimension drawings

Certificates (8)

KFU8-UFC-Ex1.D: frequently asked questions

When can KFU8-UFC-Ex1.D be shipped?

KFU8-UFC-Ex1.D is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up KFU8-UFC-Ex1.D in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

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For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for KFU8-UFC-Ex1.D, subject to availability and destination.