Pepperl Fuchs KFD2-STC5-Ex1.2O

SMART Transmitter Power Supply

MPN: KFD2-STC5-Ex1.2O
Category: K-System (DIN Rail Mounting)

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What is the Pepperl Fuchs KFD2-STC5-Ex1.2O?

1-channel isolated barrier

24 V DC supply (Power Rail)

Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources

Signal splitter (1 input and 2 outputs)

Dual output 4 mA ... 20 mA current sink/current source

Terminals with test points

Up to SIL 2 (SC 3) acc. to IEC/EN 61508

1-channel isolated barrier, 24 V DC supply (Power Rail), Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources, Signal splitter (1 input and 2 outputs), Dual output 4 mA ... 20 mA current sink/current source, Terminals with test points, Up to SIL 2 (SC 3) acc. to IEC/EN 61508, Housing width: 20 mm, Number of channels: 1-channel, HART communication, Test sockets, Safety Integrity Level (SIL): SIL 3, Systematic capability (SC): SC 3, Rated voltage: 18 ... 30 V DC

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	239214
Signal type	Analog input
Lifecycle	Active (current Pepperl+Fuchs product)

Functional safety related parameters

Safety Integrity Level (SIL)	SIL 3
Systematic capability (SC)	SC 3

Supply

Connection	Power Rail or terminals 14+, 15-
Rated voltage	18 ... 30 V DC Ur
Ripple	within the supply tolerance
Power dissipation	≤ 1 W at maximum load
Power consumption	≤ 1.7 W at maximum load

Input

Connection side	field side
Connection	terminals 1+, 2-, 3
Input signal	4 ... 20 mA
Open circuit voltage/short-circuit current	terminals 1+, 3: 23 V / 25 mA
Input resistance	max. 265 Ω terminals 2-, 3 , max. 330 Ω terminals 1+, 3
Available voltage	≥ 16 V at 20 mA ; ≥ 20 V at 4 mA , terminals 1+, 3

Output

Connection side	control side
Connection	terminals 7+, 8-, 9-; 10+, 11-, 12- (sink) terminals 7-, 8+, 9+; 10-, 11+, 12+ (source) see additional information
Load	0 ... 600 Ω
Output signal	4 ... 20 mA (overload > 25 mA)
Ripple	max. 50 µA rms
External supply (loop)	2 ... 30 V DC If the external voltage is > 19 V, a load ≥ ((V - 19) / 0.02) Ω is required. V represents the value of the external voltage. The internal 250 Ω resistor at terminals 9 and 12 can be used as a load.

Transfer characteristics

Deviation	at 20 °C (68 °F), 4 ... 20 mA≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
Influence of ambient temperature	≤ 0.25 µA/K
Frequency range	field side into the control side: bandwidth with 0.5 Vpp signal 0 ... 7.5 kHz (-3 dB) control side into the field side: bandwidth with 0.5 Vpp signal 0.3 ... 7.5 kHz (-3 dB)
Settling time	500 µs
Rise time/fall time	100 µs

Galvanic isolation

Output/power supply	functional insulation, rated insulation voltage 50 V AC
Output/Output	functional insulation, rated insulation voltage 50 V AC

Indicators/settings

Display elements	LED
Labeling	space for labeling at the front

Directive conformity

Electromagnetic compatibility: Directive 2014/30/EU

EN 61326-1:2013 (industrial locations)

Conformity

Electromagnetic compatibility	NE 21:2012 EN 61326-3-2:2008
Degree of protection	IEC 60529:2001
Protection against electrical shock	UL 61010-1:2012

Ambient conditions

Ambient temperature

-20 ... 60 °C (-4 ... 140 °F) extended ambient temperature range up to 70 °C (158 °F), refer to manual for necessary mounting conditions

Mechanical specifications

Degree of protection	IP20
Connection	screw terminals
Mass	approx. 200 g
Dimensions	20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) (W x H x D) , housing type B2
Mounting	on 35 mm DIN mounting rail acc. to EN 60715:2001

Data for application in connection with hazardous areas

EU-type examination certificate	CML 17 ATEX 2031X
Marking	II (1)G [Ex ia Ga] IIC [exsign] II (1)D [Ex ia Da] IIIC [exsign] I (M1) [Ex ia Ma] I
Input	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Supply: Maximum safe voltage	250 V (Attention! The rated voltage can be lower.) Um
Equipment	terminals 1+, 3-
Voltage	26.2 V Uo
Voltage	27.25 V Uq
Current	93 mA Io
Power	634 mW Po
Equipment	terminals 2-, 3
Voltage	30 V Ui
Current	115 mA Ii
Power	max 1 W Pi
Voltage	2 V Uo
Current	8.5 mA Io
Power	4.3 mW Po
Equipment	terminals 1+, 2 / 3-
Voltage	26.2 V Uo
Voltage	27.25 V Uq
Current	115 mA Io
Power	784 mW Po
Certificate	CML 17 ATEX 3030X
Marking	II 3G Ex ec IIC T4 Gc
Galvanic isolation: Input/Output	safe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V
Galvanic isolation: Input/power supply	safe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V
Directive conformity: Directive 2014/34/EU	EN IEC 60079-0:2018+AC:2020 , EN 60079-7:2015+A1:2018 , EN IEC 60079-11:2024

International approvals

UL approval	E106378
Control drawing	116-0439 (cULus)
IECEx approval: IECEx certificate	IECEx CML 17.0016X
IECEx approval: IECEx marking	[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I Ex ec IIC T4 Gc

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 (10)

KFD2-STC5-Ex1.2O: frequently asked questions

When can KFD2-STC5-Ex1.2O be shipped?

KFD2-STC5-Ex1.2O 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 KFD2-STC5-Ex1.2O 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 KFD2-STC5-Ex1.2O 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 KFD2-STC5-Ex1.2O, subject to availability and destination.