Pepperl+Fuchs KFD2-SR2-Ex2.W Switch Amplifier (203355)

Name: Pepperl+Fuchs KFD2-SR2-Ex2.W Switch Amplifier (203355)
SKU: KFD2-SR2-Ex2.W
Price: 229.94 GBP
Availability: InStock

£229.94 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-SR2-Ex2.W
Type	Intrinsically Safe Switch Amplifier
Supply Voltage	19 … 30 V DC
Rated Current	≤ 50 mA
Input Type	NAMUR sensor or dry contact
Output Type	Relay contact output
Dimensions	20 x 119 x 115 mm (W x H x D)
Connection	Screw terminals
Mounting	35 mm DIN rail (EN 60715)
Open Circuit Voltage	Approx. 8 V DC

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SKU: KFD2-SR2-Ex2.W Category: Pepperl+Fuchs Modules Tag: KFD2-SR2-Ex2.W Brand: Pepperl+Fuchs

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Pepperl+Fuchs KFD2-SR2-Ex2.W Switch Amplifier (203355)

The P&F KFD2-SR2-Ex2.W is a 2-channel intrinsically safe switch amplifier designed to safely transmit digital signals from NAMUR sensors or dry contacts in hazardous areas to relay outputs in safe zones. Featuring reversible logic, integrated line fault detection, dual relay outputs, and Power Rail support for collective error messaging, the unit is certified up to SIL 2 (SC 3) for dependable use in process automation environments.

Technical Specifications

Model	KFD2-SR2-Ex2.W
Type	Intrinsically Safe Switch Amplifier
Input Type	NAMUR sensor or dry contact
Output Type	Relay contact 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. 8 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 mA
Pulse/Pause Ratio	Min. 20 ms

Output Specifications

Output Terminals	I: 7, 8, 9 \| II: 10, 11, 12
Output Type	Relay contact
Minimum Switching Current	2 mA @ 24 V DC
Switching Delay	Approx. 20 ms (On/Off)
Mechanical Life	10 7 switching cycles
Contact Rating	250 V AC / 2 A (cos φ > 0.75) 126.5 V AC / 4 A (cos φ > 0.75) 40 V DC / 2 A resistive

Power & Configuration

Supply Voltage	19 … 30 V DC
Rated Current	≤ 50 mA
Power Dissipation	≤ 1 W
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)
Output/Power Supply	Reinforced (300 Veff)
Output/Output	Reinforced (300 Veff)

Environmental & Mechanical

Operating Temperature	-40 … 70 °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 (1)G [Ex ia Ga] IIC / II (1)D [Ex ia Da] IIIC / I (M1) [Ex ia Ma] I
IECEx Marking	Ex ia Ga IIC / Ex ia Da IIIC / Ex ia Ma I / Ex ec nC IIC T4 Gc
FM/UL Approval	Yes (FM19US0207X, UL E106378)
Certificates	PTB 00 ATEX 2080, TÜV 99 ATEX 1493 X, IECEx PTB 11.0034, IECEx TUN 19.0013X
Max Safe Voltage (Um)	253 V AC / 125 V DC (signal), 40 V DC (fault)

Frequently Asked Questions

How can I check whether KFD2-SR2-Ex2.W 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-SR2-Ex2.W 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-SR2-Ex2.W-Datasheet.pdf

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Pepperl+Fuchs KFD2-SR2-Ex2.W Switch Amplifier (203355)