Pepperl+Fuchs KFA5-SOT2-EX2 233751

Manufacturer

Pepperl+Fuchs

Name

KFA5-SOT2-EX2

Part number

233751

Country

Germany

Type

Switch Amplifier

Weight (g)

176

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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. Each proximity sensor or switch controls a passive transistor output for the safe area load. The normal output state can be reversed using switch S1 for channel I and switch S2 for channel II. Switch S3 enables or disables line fault detection of the field circuit. During an error condition, the transistors revert to their de-energized state and LEDs indicate the fault according to NAMUR NE44.

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General specifications
Signal type	Digital Input
Functional safety related parameters
Safety Integrity Level (SIL)	SIL 2
Supply
Connection	terminals 14, 15
Rated voltage	103.5 ... 126.5 V AC , 45 ... 65 Hz
Power dissipation	1 W
Power consumption	max. 1.5 W
Input
Connection side	field side
Connection	terminals 1+, 2+, 3-, 4+, 5+, 6-
Rated values	acc. to EN 60947-5-6 (NAMUR), see system description for electrical data
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 &le, 0.1 mA , short-circuit I > 6 mA
Output
Connection side	control side
Connection	output I: terminals 7, 8 , output II: terminals 8, 9
Switching voltage	max. 40 V
Switching current	max. 100 mA , short-circuit protected
Signal level	1-signal: switching voltage - 2.5 V max. at 10 mA switching current or 3 V max. at 100 mA switching current 0-signal: switched off (off-state current &le, 10 µ,A)
Output I, II	signal , electronic output, passive
Transfer characteristics
Switching frequency	&le, 5 kHz
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	not available
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
Conformity
Electromagnetic compatibility	NE 21:2012
Degree of protection	IEC 60529
Ambient conditions
Ambient temperature	-20 ... 60 °C (-4 ... 140 °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) , 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 98 ATEX 2164
	Marking	II (1) G [Ex ia] IIC II (1) D [Ex ia] IIIC
	Input	Ex ia IIC, Ex ia IIIC
	Voltage	10.5 V
	Current	13 mA
	Power	34 mW (linear characteristic)
Supply
	Maximum safe voltage	126.5 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 60079-0:2012+A11:2013 , EN 60079-11:2012
International approvals
UL approval
	Control drawing	116-0145
CSA approval
	Control drawing	116-0047
General information
Supplementary information	Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.