KFD2-SR2-EX1.W PEPPERL FUCHS Isolated Barrier
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Product Details:
Features:
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 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 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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