Pepperl+Fuches KFD2-SH-Ex1.T.OP Switch Amplifier, 1-channel isolated barrier, 24 V DC supply (Power Rail), input for approved dry contacts or SN/S1N.
This isolated barrier is used for intrinsic safety applications.
The device transfers digital signals (SN/S1N proximity sensors or approved dry contacts) from a hazardous area to a safe area.
The input controls one active voltage output and one relay contact output with a NO contact.
Unlike an SN/S1N series proximity sensor, a mechanical contact requires a 10 kā¦ resistor to be placed across the contact in addition to a 1.5 kā¦ resistor in series.
Lead breakage (LB) and short circuit (SC) conditions of the control circuit are continuously monitored.
During an fault condition, the fault indication output and the outputs I and II de-energize.
For safety applications up to SIL3, output I must be used. For safety applications up to SIL2, output I and output II can be used.
Technical Data
General specifications
Signal type Digital Input
Functional safety related parameters
Safety Integrity Level (SIL) SIL 3
Performance level (PL) PL d
Supply
Connection Power Rail or terminals 14+, 15-
Rated voltage Ur 20 ... 30 V DC
Ripple ā¤ 10 %
Rated current Ir ā¤ 100 mA
Power dissipation 1.5 W
Power consumption max. 1.7 W
Input
Connection side field side
Connection terminals 4+, 6-
Open circuit voltage/short-circuit current approx. 8.4 V DC / approx. 11.7 mA
Lead resistance max. 50 Ī© , cable capacitances and inductances must be observed in hazardous
areas
Switching point
Relay de-energized I < 2.1 mA and I > 5.9 mA , output switched off
Relay energized 2.8 mA < I < 5.3 mA , output switched on
Response delay ā¤ 1 ms
Output
Connection side control side
Connection output I: terminals 7+, 8- ; output II: terminals 9, 10 ; output III: terminals 11, 12
Output I active voltage output, short-circuit proof
0-signal: 0 V
1-signal: 19 V DC at 15 mA ... 31 V DC at no-load
fault: 0 V
Output II relay
Contact loading 48 V AC/DC
250 mA
Mechanical life ā¤ 20 x 106 switching cycles
Output III relay , fault signal
Contact loading 48 V AC/DC
250 mA
Mechanical life ā¤ 20 x 106 switching cycles
Transfer characteristics
Switching frequency
Output I ā¤ 50 Hz
Output II ā¤ 5 Hz
Output III ā¤ 5 Hz
Indicators/settings
Display elements LEDs
Labeling space for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EU EN 61326-1:2013 (industrial locations)
Machinery Directive
Directive 2006/42/EC EN/ISO 13849-1:2015
Conformity
Electromagnetic compatibility NE 21:2017 , EN 61326-3-2:2008
Degree of protection IEC 60529:2001
Safety IEC/EN 61508:2010
Ambient conditions
Ambient temperature -20 ... 60 Ā°C (-4 ... 140 Ā°F)
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
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificate PTB 00 ATEX 2041
Marking 1 II (1)GD [Ex ia] IIC [circuit(s) in zone 0/1/2]
Input Ex ia IIC
Voltage Uo 9.56 V
Current Io 16.8 mA
Power Po 41 mW (linear characteristic)
Supply
Maximum safe voltage Um 40 V AC/DC (Attention! The rated voltage can be lower.)
Output
Contact loading 48 V AC/DC
250 mA
Maximum safe voltage Um 60 V AC/DC (Attention! The rated voltage can be lower.)
Certificate TĆV 99 ATEX 1493 X
Marking 1 II 3G Ex ec nC IIC T4 Gc
Galvanic isolation
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 60079-0:2012+A11:2013 , EN 60079-7:2015 , EN 60079-11:2012
International approvals
IECEx approval
IECEx certificate IECEx PTB 21.0010
IECEx TUN 19.0013X
IECEx marking [Ex ia Ga] IIC
[Ex ia Da] IIIC
Ex ec nC IIC T4 Gc
