Switch Amplifier KHA6-SH-Ex1

Datasheet excerpt: Technical data of  KHA6-SH-Ex1

General specifications
Signal type		Digital Input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 3
Performance level (PL)		PL d
Supply
Connection		terminals 22, 23, 24
Rated voltage		85 ... 253 V AC , 45 ... 65 Hz
Rated current		30 mA ± 5 mA
Power dissipation		2.2 W
Power consumption		max. 2.3 W
Input
Connection side		field side
Connection		terminals 10+, 12-
Open circuit voltage/short-circuit current		approx. 8.4 V DC / approx. 11.7 mA
Lead resistance		≤ 50 Ω, in hazardous area cable capacitances and inductivities are to be taken into account
Switching point
	Relay de-energized	I < 2.1 mA and I > 5.9 mA
	Relay energized	2.8 mA < I < 5.3 mA
Response delay		≤ 1 ms
Output
Connection side		control side
Connection		output I: terminals 13, 14 ; output II: terminals 15, 21 ; output III: terminals 16+, 17-
Output I		relay , signal
	Contact loading	253 V AC/1 A/cos φ ≥ 0.7; 24 V DC/1 A resistive load
	Mechanical life	50 x 106 switching cycles
Output II		relay , signal
	Contact loading	253 V AC/1 A/cos φ ≥ 0.7; 24 V DC/1 A resistive load
	Mechanical life	50 x 106 switching cycles
Output III		electronic output, passive , fault signal
	Rated voltage	10 ... 30 V DC
	Signal level	1-signal: (L+) -2.5 V (7 mA, short-circuit proof) / 0-signal: blocked output (Leakage current ≤ 10 mA)
Transfer characteristics
Switching frequency		5 Hz
Indicators/settings
Display elements		LEDs
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
Machinery Directive
	Directive 2006/42/EC	EN/ISO 13849-1:2008
Conformity
Electromagnetic compatibility		NE 21:2011
Degree of protection		IEC 60529:2001
Safety		IEC/EN 61508:2010
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 280 g
Dimensions		40 x 93 x 115 mm (1.6 x 3.7 x 4.5 inch) , housing type E
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 2043
	Marking	II (1)GD [EEx ia] IIC [circuit(s) in zone 0/1/2]
	Input	EEx ia IIC
	Voltage	9.56 V
	Current	16.8 mA
	Power	41 mW (linear characteristic)
Supply
	Maximum safe voltage	253 V AC/DC (Attention! The rated voltage can be lower.)
Output
	Contact loading	253 V AC/1 A/cos φ ≥ 0.7; 24 V DC/1 A resistive load
	Maximum safe voltage	output I/output II: 253 V AC/DC (Attention! Um is no rated voltage.)
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
General information
Supplementary information		Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Documents: KHA6-SH-Ex1

CAD+CAE: KHA6-SH-Ex1

Approvals+Certificates: KHA6-SH-Ex1

Function: KHA6-SH-Ex1

This isolated barrier is used for intrinsic safety applications.

The device transfers digital signals (SN/S1N proximity sensors or approved dry contacts) from a hazardous area to a safe area.

The input controls 1 relay contact output with 3 NO contacts (1 output is in series to the both output relays for the safety function), 1 relay contact output with 1 NO contact, and 1 passive transistor output (fault indication output).

Unlike an SN/S1N series proximity sensor, a mechanical contact requires a 10 kΩ resistor to be placed across the contact in addition to a 1.5 kΩ resistor in series.

Lead breakage (LB) and short circuit (SC) conditions of the control circuit are continuously monitored.

During an fault condition, the fault indication output energizes and outputs I and II de-energize.

For safety applications up to SIL 3, output I must be used. For safety applications up to SIL 2, output I and output II can be used.