Pepperl+Fuchs KFD0-SCS-EX1.55 240495

Manufacturer

Pepperl+Fuchs

Name

KFD0-SCS-EX1.55

Part number

240495

Country

Germany

Type

Repeater

Weight (g)

134

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This isolated barrier is used for intrinsic safety applications. It is loop powered and isolates a 4 mA ... 20mA signal for transmitters and positioners and is HART compatible. With a noticeably lower power loss compared to active isolator modules, the barriers 5 V drop makes it suitable for transmitter applications with unstable power sources between 20 V DC ... 30 V DC. Line fault detection of the field circuit is possible if the control loop in the safe area is monitored for overscale or underscale conditions of the 4 mA ... 20mA range. The module can also be used for controlling solenoid valves and discrete outputs, such as LEDs. In this case, terminals 8- and 9+ are driven with a 24 V signal.

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General specifications
Signal type	Analog input/analog output
Functional safety related parameters
Safety Integrity Level (SIL)	SIL 2
Supply
Rated voltage	loop powered
Power dissipation	0.2 W
Control circuit
Connection	terminals 8-, 9+
Voltage	max. 30 V DC
Current	4 ... 20 mA (quiescent current < 0.5 mA)
Power dissipation	150 mW at 20 mA and Uin < 24 V
Field circuit
Connection	terminals 1+, 2 / 3-
Voltage	&ge, 16 V for supply voltage > 21 V
Current	4 ... 20 mA (linear transmission 1 ... 22 mA)
Load	&le, 800 &Omega, (at 20 mA)
Transfer characteristics
Voltage drop	see note
Influence of ambient temperature	< 0.5 µ,A/K
Damping	approx. 3 dB
Rise time	&le, 20 µ,s at 0 &Omega,, &le, 600 µ,s with 800 &Omega, load
Indicators/settings
Labeling	space for labeling at the front
Directive conformity
Electromagnetic compatibility
	Directive 2014/30/EU	EN 61326-1:2013 (industrial locations)
Conformity
Electromagnetic compatibility	NE 21:2007
Degree of protection	IEC 60529:2001
Ambient conditions
Ambient temperature	-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection	IP20
Connection	screw terminals
Mass	approx. 120 g
Dimensions	20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) , 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 02 ATEX 2064
	Marking	II (2)G [EEx ib] IIC
Certificate	PF 11 CERT 0902 X
	Marking	II 3G Ex nA IIC T4 Gc
Directive conformity
	Directive 2014/34/EU	EN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval	device with FM approval on request