Pepperl+Fuchs KFA5-SR2-EX1.W 103371

Manufacturer

Pepperl+Fuchs

Name

KFA5-SR2-EX1.W

Part number

103371

Country

Germany

Type

Switch Amplifier

Weight (g)

172

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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. The proximity sensor or switch controls a form C changeover relay contact for the safe area load. The barrier output changes state when the input signal changes state. The normal output state can be reversed using switch S1. Switch S3 is used to enable or disable line fault detection of the field circuit. During an error condition, relays 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 V AC , 45 ... 65 Hz
Power consumption	1 W
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 &le, 0.1 mA , short-circuit I > 6 mA
Pulse/Pause ratio	min. 20 ms / min. 20 ms
Output
Connection side	control side
Connection	terminals 7, 8, 9
Output	signal, relay
Contact loading	253 V AC/2 A/cos &phi, > 0.7, 126.5 V AC/4 A/cos &phi, > 0.7, 40 V DC/2 A resistive load
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
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 21:2006
Degree of protection	IEC 60529:2001
Input	EN 60947-5-6:2000
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 00 ATEX 2081
	Marking	II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
	Input	Ex ia
	Voltage	10.6 V
	Current	19.1 mA
	Power	51 mW (linear characteristic)
Supply
	Maximum safe voltage	126.5 V AC (Attention! Um is no rated voltage.)
Output
	Contact loading	253 V AC/2 A/cos &phi, > 0.7, 126.5 V AC/4 A/cos &phi, > 0.7, 40 V DC/2 A resistive load
	Maximum safe voltage	253 V AC (Attention! The rated voltage can be lower.)
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 60079-11:2012
International approvals
FM approval
	Control drawing	116-0035
UL approval
	Control drawing	116-0145
CSA approval
	Control drawing	116-0047
IECEx approval	IECEx PTB 11.0031
	Approved for	[Ex ia Ga] IIC, [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.