Switch Amplifier KFD2-SR2-Ex1.W

1-channel isolated barrier
24 V DC supply (Power Rail)
Dry contact or NAMUR inputs
Relay contact output
Line fault detection (LFD)
Reversible mode of operation
Up to SIL 2 acc. to IEC 61508/IEC 61511

技术参数 KFD2-SR2-Ex1.W

General specifications
Signal type		Digital Input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 2
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		19 30 V DC
Ripple		≤ 10 %
Rated current		≤ 35 mA
Power dissipation		≤ 0.7 W
Power consumption		≤ 0.7 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 ≤ 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		250 V AC/2 A/cos φ > 0.75; 126.5 V AC/4 A/cos φ > 0.75; 40 V DC/2 A resistive load
Minimum switch current		2 mA / 24 V DC
Energized/De-energized delay		approx. 20 ms / approx. 20 ms
Mechanical life		107 switching cycles
Collective error message		Power Rail
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 21:2017 , EN 61326-3-1:2017 , EN IEC 61326-3-2:2018
Degree of protection		IEC 60529:1989+A1:1999+A2:2013
Functional safety		IEC/EN 61508:2010
Input		EN 60947-5-6:2000
Ambient conditions
Ambient temperature		-20 70 °C (-4 158 °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 2080
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	10.5 V
Current	13 mA
Power	34 mW (linear characteristic)
Supply
Maximum safe voltage	253 V AC / 125 V DC (Attention! Um is no rated voltage.)
Output
Maximum safe voltage	253 V AC (Attention! The rated voltage can be lower.)
Fault indication output
Maximum safe voltage	40 V DC (Attention! Um is no rated voltage.)
Certificate		PF 08 CERT 0803
Marking	II (3)G [Ex ic Gc] IIC
Input		Ex ic
Voltage	10.5 V
Current	13 mA
Power	34 mW (linear characteristic)
Certificate		TÜV 99 ATEX 1493 X
Marking	II 3G Ex ec nC IIC T4 Gc
Output
Contact loading	50 V AC/4 A/cos φ > 0.7; 40 V DC/2 A resistive load
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 IEC 60079-0:2018 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012 , EN IEC 60079-15:2019
International approvals
FM approval
FM certificate	FM19US0207X
Control drawing	116-0035
UL approval		E106378
Control drawing	116-0473 (cULus)
Contact loading	250 V AC/2 A/cos φ > 0.75; 126.5 V AC/4 A/cos φ > 0.75; 30 V DC/2 A resistive load
Ambient temperature	-20 60 °C (-4 140 °F)
IECEx approval
IECEx certificate	IECEx PTB 11.0034 , IECEx TUN 19.0013X
IECEx marking	[Ex ia Ga] IIC [Ex ia Da] IIIC [Ex ia Ma] I Ex ec nC IIC T4 Gc