Pepperl Fuchs KFD2-STC5-2

SMART Transmitter Power Supply

MPN: KFD2-STC5-2
Category: K-System (DIN Rail Mounting, Highly Functional)

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What is the Pepperl Fuchs KFD2-STC5-2?

2-channel signal conditioner

24 V DC supply (Power Rail)

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

Output 4 mA ... 20 mA current sink/current source

Terminals with test points

Up to SIL 2 acc. to IEC/EN 61508

2-channel signal conditioner, 24 V DC supply (Power Rail), Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources, Output 4 mA ... 20 mA current sink/current source, Terminals with test points, Up to SIL 2 acc. to IEC/EN 61508, Housing width: 20 mm, Number of channels: 2-channel, HART communication, Test sockets, Safety Integrity Level (SIL): SIL 2, Rated voltage: 18 ... 30 V DC, Field device: 2-wire transmitter, Field device [2]: 3-wire transmitter, Field device [3]: current source

Specifications

General specifications

Order code (Pepperl+Fuchs part number)	203646
Signal type	Analog input
Lifecycle	Active (current Pepperl+Fuchs product)

Functional safety related parameters

Safety Integrity Level (SIL)

SIL 2

Supply

Connection	Power Rail or terminals 14+, 15-
Rated voltage	18 ... 30 V DC Ur
Ripple	within the supply tolerance
Power dissipation	≤ 1.4 W at maximum load
Power consumption	≤ 2.6 W at maximum load

Input

Connection side	field side
Connection	terminals 1+, 2-, 3; 4+, 5-, 6
Input signal	4 ... 20 mA
Open circuit voltage/short-circuit current	terminals 1+, 3; 4+, 6: 23 V / 25 mA
Input resistance	max. 265 Ω terminals 2-, 3; 5-, 6 , max. 330 Ω terminals 1+, 3; 4+, 6
Available voltage	≥ 16 V at 20 mA ; ≥ 20 V at 4 mA , terminals 1+, 3; 4+, 6

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: band width with 1 Vpp signal 0 ... 7.5 kHz (-3 dB) safe area to hazardous area: band width with 1 VSS signal 0.3 ... 7.5 kHz (-3 dB)
Settling time	500 µs
Rise time/fall time	100 µs

Galvanic isolation

Input/Output	basic insulation according to IEC 61010-1, rated insulation voltage 300 Veff
Input/power supply	basic insulation according to IEC 61010-1, rated insulation voltage 300 Veff
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 ... 70 °C (-4 ... 158 °F)

Mechanical specifications

Degree of protection	IP20
Connection	screw terminals
Mass	approx. 150 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

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 (3)

KFD2-STC5-2: frequently asked questions

When can KFD2-STC5-2 be shipped?

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