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Home ProductsPEPPERL FUCHS Isolated Barrier

Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier

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Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier

Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier
Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier

Large Image :  Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier

Product Details:
Place of Origin: Germany
Brand Name: PF
Certification: ATEX
Model Number: KFD2-SR2-EX2.W
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: Negotiate
Packaging Details: carton
Delivery Time: stock
Payment Terms: T/T, Alipay, Paypal
Supply Ability: 100pcs per month
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Detailed Product Description
Manufacture: Pepperl+Fuchs Model: KFD2-SR2-EX2.W
Signal Type: Digital Input Rated Voltage: 20 ... 30 V DC
Power Dissipation: 1 W Switching Frequency: ≤ 10 Hz
Display Elements: LEDs Shipping Weight: 1 Kg
Highlight:

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pepperl fuchs kfd2 sr2 ex2 w

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pepperl and fuchs kfd2 sr2 ex2 w

Product Details:
Manufacturer : Pepperl+Fuchs
Product No. : KFD2-SR2-EX2.W
Product Type : Switch Amplifier
 
Features:

  • 2-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Dry contact or NAMUR inputs
  • Relay contact output
  • Line fault detection (LFD)
  • Reversible mode of operation
  • Up to SIL 2 (SC 3) acc. to IEC/EN 61508

 
Function
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals from NAMUR sensors or dry contacts from the hazardous area to the non-hazardous area.
The proximity sensor or the mechanical contact controls the control side load for a relay contact output. The device output changes the state when the input signal changes the state.
Via switches the mode of operation can be reversed and the line fault detection can be switched off.
During a fault condition, the relay reverts to its de-energized state and the LEDs indicate the fault according to NAMUR NE 44.
If the device is operated via Power Rail, additionally a collective error message is available.
 
Technical data

1. General specifications
    Signal type: Digital Input
2. Functional safety related parameters
    Safety Integrity Level (SIL): SIL 2
    Systematic capability (SC): SC 3
3. Supply
    Connection: Power Rail or terminals 14+, 15-
    Rated voltage: 19 ... 30 V DC
    Ripple: ≤ 10 %
    Rated current: ≤ 50 mA
    Power dissipation: ≤ 1 W
    Power consumption: ≤ 1 W
4. Input
    Connection side: field side
    Connection: terminals 1+, 2+, 3-; 4+, 5+, 6-
    Rated values: acc. to EN 60947-5-6 (NAMUR)
    Open circuit voltage/short-circuit current: approx. 8 V DC / approx. 8 mA
    Switching point/switching hysteresis: 1.2 ... 2.1 mA / approx. 0.2 mA
    Line fault detection: breakage I ≤ 0.1 mA , short-circuit I > 6 mA
    Pulse/Pause ratio: min. 20 ms / min. 20 ms
5. Output
    Connection side: control side
    Connection: output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12
    Output I, II: signal, relay
    Contact loading: 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 load
    Minimum switch current: 2 mA / 24 V DC
    Energized/De-energized delay: approx. 20 ms / approx. 20 ms
    Mechanical life: 107 switching cycles
    Collective error message: Power Rail
6. Transfer characteristics
    Switching frequency: ≤ 10 Hz
7. Galvanic isolation
    Input/Output: reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
    Input/power supply: reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
    Output/power supply: reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
    Output/Output: reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
8. Indicators/settings
    Display elements: LEDs
    Control elements: DIP switch
    Configuration: via DIP switches
    Labeling: space for labeling at the front
9. Directive conformity
    Electromagnetic compatibility
       Directive 2014/30/EU: EN 61326-1:2013 (industrial locations)
    Low voltage
       Directive 2014/35/EU: EN 61010-1:2010+A1:2019+A1:2019/AC:2019 
 

Pepperl+Fuchs KFD2-SR2-EX2.W Switch Amplifier 2 Channel Isolated Barrier 0
 
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Company Introduction:
Achievers Automation Limited has more than 10 years experience in the market of Industrial Automation, specialized in reselling factory sealed Probe, Sensor, DCS,isolator barrier, HMI, PLC,Adapter,Profibus connector and cable from Brands as BENTLY NEVADA, Endress+Hauser, YOKOGAWA,MTL,Allen-Bradley, Pepperl+Fuchs,Rosemount, ASCO, Schneider, Lenze, Pro-face, Mitsubishi, Omron, Lenze, Delta, Honeywell, Siemens and etc. If you have any request, please do not hesitate to contact us.
 
FAQ of Achievers
Q:Are the Products Genuine OEM Units?
A: These items have been certified by Achievers Automation Limited to be genuine OEM Units obtained through OEM or independent third-party channels.
Q:How will you arrange shipment?
A: We can arrange shipment based on your request. We have cooperated forwader who can arrange shipment via FedEx, DHL,TNT with good price.
Q:What is the warranty of goods?
A: One-year Warranty.

 

Ratings & Review

Overall Rating

5.0
Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings
5 stars
100%
4 stars
0%
3 stars
0%
2 stars
0%
1 stars
0%

All Reviews

N
Noor
Gabon Jun 4.2026
Helpful (1)
We purchased batches of Wenglor I18N003(55254652) for conveyor positioning; flush mounting fits our M18 bore perfectly, stable 5mm detection without false triggering.
C
cc
Lesotho May 21.2026
Helpful (1)
I’ve used this M12 sensor-actuator cable across 3 automotive assembly lines for 18 months, and it’s been flawless. The PUR jacket handles constant oil, coolant, and heavy robotic bending without cracking or hardening. 5m length is perfect for most cell layouts—no excess slack or tension. M12 connectors click in solid, gold-plated contacts stay corrosion-free, and IP67/IP69K sealing stands up to high-pressure washdowns. Zero signal drops, zero unplanned downtime. Worth every penny over generic cables. Highly recommend for harsh industrial environments.
T
tt
Austria May 20.2026
Helpful (1)
We’ve installed the NBN3-F31K-Z8-K on our pneumatic actuator stations for over a year, and it’s been totally reliable. The 3 mm sensing range is spot-on for detecting small metal targets, with consistent accuracy and almost no hysteresis. Its IP67-rated PBT housing handles oil, dust and occasional water splashes without issues—ideal for our factory floor. The sensor’s compact block design mounts directly to standard actuators, saving time and brackets. Two yellow LEDs clearly show sensor and valve status, making troubleshooting a breeze. With 6–60 V DC wide voltage input, 500 Hz switching frequency, and -25°C to 70°C working range, it fits most industrial setups. Reverse polarity protection is a nice safety touch. A solid, well-built sensor worth the investment.
Tag:

SMART Transmitter Power Supply,

PEPPERL FUCHS SMART Transmitter Power Supply,

PEPPERL FUCHS Inductive Sensor

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