Switch Amplifier KFD2-SRA-Ex4

• 4-channel isolated barrier
• 24 V DC supply (Power Rail)
• Dry contact or NAMUR inputs
• 50 % less wiring, 2:1 technology
• Relay contact output
• Line fault detection (LFD)
• Reversible mode of operation

技术参数  KFD2-SRA-Ex4

General specifications
Signal type		Digital Input
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		19 ... 30 V DC
Ripple		≤ 10 %
Rated current		45 ... 70 mA
Power dissipation		1.2 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
Pulse/Pause ratio		min. 35 ms / min. 35 ms (non-AC operation) min. 70 ms / min. 70 ms (AC operation)
Line fault detection		breakage I ≤ 0.15 mA , short-circuit I > 6 mA
Output
Connection side		control side
Connection		output I: terminals 7, 8 ; output II: terminals 8, 9 ; output III: terminals 10, 11 ; output IV: terminals 11, 12
Output I ... IV		Signal I ... Signal IV ; relay
Contact loading		253 V AC/2 A /cos φ > 0.7; 40 V DC/2 A resistive load;
Energized/De-energized delay		approx. 30 ms / approx. 30 ms
Mechanical life		5 x 106 switching cycles
Collective error message		Power Rail
Transfer characteristics
Switching frequency		≤ 10 Hz (non-AC operation) ≤ 3 Hz (AC operation)
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		basic 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		ZELM 99 ATEX 0009
	Marking	II (1)G [Ex ia Ga] IIC  II (1)D [Ex ia Da] IIIC  I (M1) [Ex ia Ma] I
	Input	Ex ia IIC
	Voltage	10 V
	Current	14 mA
	Power	35 mW (linear characteristic)
Supply
	Maximum safe voltage	40 V DC (Attention! Um is no rated voltage.)
Output
	Contact loading	230 V AC + 10 % / 2 A / 100 VA / cos φ ≥ 0.7; 40 V DC / 2 A resistive load
Fault indication output
	Maximum safe voltage	40 V DC
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 , EN 60079-26:2007 , EN 50303:2000
International approvals
UL approval
	Control drawing	116-0145
IECEx approval		IECEx TUN 04.0003
	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.
Accessories
Optional accessories		- power feed module KFD2-EB2(.R4A.B)(.SP) - universal power rail UPR-03(-M)(-S) - profile rail K-DUCT-BU(-UPR-03) - terminal module F-KD-Ex2 - terminal module F-KDR-Ex2