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Pepperl Fuchs KFA5-DWB-Ex1.D

Rotation Speed Monitor

MPN: KFA5-DWB-Ex1.D
Category: K-System (DIN Rail Mounting)

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What is the Pepperl Fuchs KFA5-DWB-Ex1.D?

1-channel isolated barrier

115 V AC supply

Dry contact or NAMUR inputs

Input frequency 1 mHz ... 5 kHz

2 relay contact outputs

Start-up override

Configurable by keypad

Line fault detection (LFD)

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

1-channel isolated barrier, 115 V AC supply, Dry contact or NAMUR inputs, Input frequency 1 mHz ... 5 kHz, 2 relay contact outputs, Start-up override, Configurable by keypad, 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, Rotation speed monitoring, Safety Integrity Level (SIL): SIL 2, Rated voltage: 115 V AC +/- 10 %, Field device: NAMUR sensor, Field device [2]: volt-free contact

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	231208
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	115 V AC +/- 10 % Ur
Rated current	30 mA Ir
Power dissipation/power consumption	≤ 2 VA / 2 VA

Input

Connection side	field side
Connection	Input I: intrinsically safe: terminals 1+, 3- Input II: non-intrinsically safe: terminals 13+, 14-
Input I	acc. to EN 60947-5-6 (NAMUR), see manual for electrical data
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 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
Output I, II	signal, relay
Contact loading	253 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

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

Galvanic isolation

Input I/other circuits	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output I, II against eachother	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
Start-up override/power supply	reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Indicators/settings

Display elements	LEDs , display
Control elements	Control panel
Configuration	via operating buttons
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

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 1408
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 (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
Certificate	TÜV 02 ATEX 1885 X
Marking	II 3G Ex nA nC IIC T4 Gc
Output I, II: Contact loading	50 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load
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 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010

International approvals

FM approval: Control drawing	16-538FM-12
UL approval	E223772
IECEx approval: IECEx certificate	IECEx TUN 03.0000
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)

KFA5-DWB-Ex1.D: frequently asked questions

When can KFA5-DWB-Ex1.D be shipped?

KFA5-DWB-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 KFA5-DWB-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.

Is express delivery available?

Yes — mention it when you request a quote for KFA5-DWB-Ex1.D and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

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 KFA5-DWB-Ex1.D, subject to availability and destination.