KFD2-SR2-EX1.W PEPPERL FUCHS Isolated Barrier

Product Details:
Manufacturer : Pepperl+Fuchs
Product No. : KFD2-SR2-EX1.W
Product Type : Transformer Isolated Barriers

Features:

• 1-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: ≤ 35 mA

    Power dissipation: ≤ 0.7 W

    Power consumption: ≤ 0.7 W

4. Input

    Connection side: field side

    Connection: terminals 1+, 2+, 3-

    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: terminals 7, 8, 9

    Output: 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 V_eff

    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 V_eff

8. Indicators/settings

    Display elements: LEDs

    Control elements: DIP switch

    Configuration: via DIP switches

    Labeling: space for labeling at the front

9. Conformity

    Electromagnetic compatibility: NE 21:2017 , EN 61326-3-1:2017 , EN IEC 61326-3-2:2018

    Degree of protection: IEC 60529:1989+A1:1999+A2:2013

    Functional safety: IEC/EN 61508:2010

    Input: EN 60947-5-6:2000

10. Ambient conditions

    Ambient temperature: -40 ... 70 °C (-40 ... 158 °F)

11. Mechanical specifications

    Degree of protection: IP20

    Connection: screw terminals

    Mass: approx. 150 g

    Dimensions: 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) (W x H x D) , housing type B2

       Height: 119 mm

       Width: 20 mm

       Depth: 115 mm

    Mounting: on 35 mm DIN mounting rail acc. to EN 60715:2001

 

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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.