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KFU8-SR-Ex2.W, Switch Amplifier

Mfr.: Pepperl+Fuchs Process Automation

Mfr. Model #: KFU8-SR-Ex2.W

[ Ships within 1 day ]


10 in stock

  • $310.00
    Unit price per 

Switch Amplifier KFU8-SR-Ex2.W

  • 2-channel isolated barrier
  • Universal usage at different power supplies
  • 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

This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area.

The proximity sensor or switch controls a form C changeover relay contact for the safe area load. The normal output state can be reversed using switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field circuit.

During an error condition, the relays revert to their de-energized state and the LEDs indicate the fault according to NAMUR NE44.

 

Datasheet excerpt: Technical data of  KFU8-SR-Ex2.W

General specifications
Signal type Digital Input
Functional safety related parameters
Safety Integrity Level (SIL) SIL 2
Systematic capability (SC) SC 3
Supply
Connection terminals 14, 15
Rated voltage 19 ... 30 V DC / 90 ... 253 V AC 50 ... 60 Hz
Power dissipation/power consumption ≤ 1.3 W / ≤ 1.3 W ; 3.6 VA
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
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
Transfer characteristics
Switching frequency ≤ 10 Hz
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
Indicators/settings
Display elements LEDs
Control elements DIP switch
Configuration via DIP switches
Labeling space for labeling at the front
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
Conformity
Electromagnetic compatibility NE 21:2017 , EN 61326-3-1:2017 , EN IEC 61326-3-2:2018 , EN IEC 61326-1:2021 (industrial locations)
Degree of protection IEC 60529:1989+A1:1999+A2:2013
Input EN 60947-5-6:2000
Ambient conditions
Ambient temperature -40 ... 60 °C (-40 ... 140 °F)
extended ambient temperature range up to 70 °C (158 °F), refer to manual for necessary mounting conditions
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
Data for application in connection with hazardous areas
EU-type examination certificate FIDI 22 ATEX 0029 X
Marking Ex-Hexagon II 3(1)G Ex ec nC [ia Ga] IIC T4 Gc
Ex-Hexagon II (1)D [Ex ia Da] IIIC
Ex-Hexagon I (M1) [Ex ia Ma] I
Input Ex ia
Voltage 10.5 V
Current 13 mA
Power 34 mW (linear characteristic)
Supply
Maximum safe voltage 253 V AC (Attention! Um is no rated voltage.)
Output
Maximum safe voltage 253 V AC (Attention! The rated voltage can be lower.)
Galvanic isolation
Input/input not available
Input/Output safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Input/power supply safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
Directive 2014/34/EU EN IEC 60079-0:2018 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012 ,
EN IEC 60079-15:2019
International approvals
UL approval E106378
Control drawing 116-0489
Contact loading 250 V AC/2 A/cos φ > 0.75; 126.5 V AC/4 A/cos φ > 0.75; 30 V DC/2 A resistive load
IECEx approval
IECEx certificate IECEx FIDI 22.0003X
IECEx marking Ex ec nC [ia Ga] IIC T4 Gc , [Ex ia Da] IIIC , [Ex ia Ma] I
General information
Supplementary information Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

 

Classifications

System Classcode
ECLASS 13.0 27210121
ECLASS 12.0 27210121
ECLASS 11.0 27210121
ECLASS 10.0.1 27210121
ECLASS 9.0 27210121
ECLASS 8.0 27210121
ECLASS 5.1 27210121
ETIM 9.0 EC001485
ETIM 8.0 EC001485
ETIM 7.0 EC001485
ETIM 6.0 EC001485
ETIM 5.0 EC001485
UNSPSC 12.1 32101514

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