Pepperl+Fuchs KFD2-ST3-Ex2 Switch Amplifier (262111)

Name: Pepperl+Fuchs KFD2-ST3-Ex2 Switch Amplifier (262111)
SKU: KFD2-ST3-Ex2
Price: 241.44 GBP
Availability: InStock

£241.44 inc VAT

In Stock · Delivered in 3–5 Working Days

Estimated UK delivery time, subject to order confirmation, courier services and destination. International delivery times vary.

Technical SpecificationsPepperl+Fuchs

Model	KFD2-ST3-Ex2
Type	Intrinsically Safe Switch Amplifier
Supply Voltage	19 … 30 V DC
Rated Current	100 mA
Input Type	NAMUR sensor or dry contact
Output Type	Active transistor output
Dimensions	20 x 119 x 115 mm (W x H x D)
Connection	Screw terminals
Switching Frequency	≤ 5 kHz
Mounting	35 mm DIN rail (EN 60715)

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SKU: KFD2-ST3-Ex2 Category: Pepperl+Fuchs Modules Tag: KFD2-ST3-Ex2 Brand: Pepperl+Fuchs

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Pepperl+Fuchs KFD2-ST3-Ex2 Switch Amplifier (262111)

The P&F KFD2-ST3-Ex2 is a 2-channel intrinsically safe switch amplifier designed for transferring digital signals from NAMUR sensors or dry contacts in hazardous areas to active transistor outputs in safe zones. Featuring configurable logic reversal, line fault detection, and rapid switching, this SIL 2 rated unit offers dependable signal transmission and diagnostics in demanding process automation environments.

Technical Specifications

Model	KFD2-ST3-Ex2
Type	Intrinsically Safe Switch Amplifier
Input Type	NAMUR sensor or dry contact
Output Type	Active transistor output
Channels	2
Mounting	35 mm DIN rail (EN 60715)

Input Specifications

Connection Terminals	1+, 2+, 3-; 4+, 5+, 6-
Standard	EN 60947-5-6 (NAMUR)
Open Circuit Voltage	Approx. 10 V DC
Short-Circuit Current	Approx. 8 mA
Switching Point	1.2 … 2.1 mA
Hysteresis	Approx. 0.2 mA
Line Fault Detection	Break ≤ 0.1 mA, Short ≥ 6.5 mA
Pulse/Pause Ratio	Min. 100 µs

Output Specifications

Output Terminals	I: 7+ \| II: 9+
Output Type	Active transistor
Rated Voltage	30 V DC
Rated Current	100 mA
Response Time	≤ 200 µs
Switching Frequency	≤ 5 kHz
Signal Levels	1-Signal: Supply voltage – 3 V max @ 100 mA 0-Signal: Off-state current ≤ 10 µA

Power & Configuration

Supply Voltage	19 … 30 V DC
Rated Current	15 … 20 mA + I out
Power Dissipation	≤ 900 mW
Power Rail Support	Yes
Visual Indicators	LEDs (NAMUR NE 44)
Configuration	DIP switch configurable

Galvanic Isolation

Input/Output	Reinforced (300 Veff)
Input/Power Supply	Reinforced (300 Veff)

Environmental & Mechanical

Operating Temperature	-20 … 60 °C
Degree of Protection	IP20
Connection	Screw terminals
Dimensions	20 x 119 x 115 mm (W x H x D)
Weight	Approx. 150 g

Certifications & Safety

SIL Rating	SIL 2 (SC 3) per IEC/EN 61508
ATEX Marking	II 3(1)G Ex nA [ia Ga] IIC T4 Gc / II (1)D [Ex ia Da] IIIC / I (M1) [Ex ia Ma] I
IECEx Marking	Ex nA [ia Ga] IIC T4 Gc / [Ex ia Da] IIIC / [Ex ia Ma] I
Certificates	EXA 16 ATEX 0016 X, IECEx EXA 16.0009X
Max Safe Voltage (Um)	253 V AC

Frequently Asked Questions

How can I check whether KFD2-ST3-Ex2 is the correct replacement?

Check the exact manufacturer part number, electrical ratings, interface type, mounting and equipment compatibility against your existing equipment and the manufacturer’s datasheet.

How quickly can KFD2-ST3-Ex2 be delivered?

This product is listed as in stock, with estimated UK delivery in 3–5 working days. Delivery depends on order confirmation, courier services and destination.

Where can I check specifications and compatibility?

Review the specification information above and the product’s Downloads or Data Sheets tab, where documents are supplied. Our team can help check part numbers and installation compatibility.

What warranty does Drive Outlet Megastore offer?

Drive Outlet offers its own 2-year return-to-base warranty unless otherwise stated. Manufacturer warranties may not apply; please review the Terms and Conditions before ordering.

Weight	0.15 kg

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KFD2-ST3-Ex2-Datasheet.pdf

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Pepperl+Fuchs KFD2-ST3-Ex2 Switch Amplifier (262111)