Switch Amplifier KFD2-SOT3-Ex1.LB.IO

Description

The KFD2-SOT3-Ex1.LB.IO is a switch amplifier made by Pepperl+Fuchs .

It acts as an electronic interface for industrial applications, specifically in process automation environments.

KFD2-SOT3-Ex1.LB.IO

Here’s a breakdown of the product description, parameters, and application:

Product Description:

• Isolates signals: This means it electrically separates the input signal from the output signal, preventing electrical interference between them.
• Amplifies weak signals: It can boost the strength of a low-power input signal to a higher level suitable for further processing.
• Functions as a signal splitter: It can take a single input signal and duplicate it to two separate outputs.

Product Parameters:

• Supply voltage: 24 V DC
• Inputs: Supports dry contact (electrical switch) or NAMUR (industry standard for proximity sensors) sensors.
• Outputs: Two isolated passive transistor outputs, not polarity sensitive (can be connected either way).

Product Application:

This switch amplifier is typically used in industrial automation settings where:

• There’s a need to isolate signals to prevent electrical noise or ground loops from affecting the system.
• A weak signal from a sensor needs to be amplified for reliable transmission.
• A single sensor signal needs to be distributed to two control devices.

Some common applications include:

• Connecting sensors to Programmable Logic Controllers (PLCs) in industrial control systems.
• Interfacing with safety devices in hazardous areas.
• Distributing sensor signals to multiple monitoring or control points.

Datasheet excerpt: Technical data of  KFD2-SOT3-Ex1.LB.IO

General specifications
Signal type		Digital Input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 2
Systematic capability (SC)		SC 3
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		19 … 30 V DC
Ripple		≤ 10 %
Rated current		20 … 15 mA
Power dissipation		≤ 1 W including maximum power dissipation in the output
Input
Connection side		field side
Connection		terminals 1+, 2+, 3-
Rated values		acc. to EN 60947-5-6 (NAMUR), see manual for electrical data
Open circuit voltage/short-circuit current		approx. 10 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 ≥ 6.5 mA
Pulse/Pause ratio		min. 100 µs / min. 100 µs
Output
Connection side		control side
Connection		output I: terminals 7, 8 ; output II: terminals 10, 11
Rated voltage		30 V DC
Rated current		100 mA , short-circuit protected
Response time		≤ 200 µs
Signal level		1-signal: (external voltage) – 3 V max. for 100 mA 0-signal: blocked output (off-state current ≤ 10 µA)
Output I		signal ; Transistor
Output II		signal or fault message ; Transistor
Collective error message		Power Rail
Transfer characteristics
Switching frequency		≤ 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		basic 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 60 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)
Conformity
Electromagnetic compatibility		NE 21:2012 , EN 61326-3-2:2008
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) (W x H x D) , housing type B2
	Height	119 mm
	Width	20 mm
	Depth	115 mm
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificate		EXA 16 ATEX 0016 X
	Marking	II 3(1)G Ex nA [ia Ga] IIC T4 Gc  II (1)D [Ex ia Da] IIIC  I (M1) [Ex ia Ma] I
	Input	Ex ia
	Voltage	10.5 V
	Current	17.1 mA
	Power	45 mW (linear characteristic)
Supply
	Maximum safe voltage	253 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/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+AC:2020 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
UL approval		E106378
	Control drawing	116-0424 (cULus)
IECEx approval
	IECEx certificate	IECEx EXA 16.0009X
	IECEx marking	Ex nA [ia Ga] IIC T4 Gc , [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.