Serviceline Industrial Sensors
Serviceline Explosion Protection

Switch Amplifier KHA6-SH-Ex1

  • 1-channel isolated barrier
  • 115/230 V AC supply
  • Input for approved dry contacts or SN/S1N sensors
  • Relay contact output
  • Fault indication output
  • Line fault detection (LFD)
  • Up to SIL 3 acc. to IEC 61508
  • Up to PL d acc. to EN/ISO 13849

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  KHA6-SH-Ex1

Product Description
230 V AC
General specifications
Signal typeDigital Input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Performance level (PL)PL d
Connectionterminals 22, 23, 24
Rated voltage85 ... 253 V AC , 45 ... 65 Hz
Rated current30 mA ± 5 mA
Power dissipation2.2 W
Power consumptionmax. 2.3 W
Connection sidefield side
Connectionterminals 10+, 12-
Open circuit voltage/short-circuit currentapprox. 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-energizedI < 2.1 mA and I > 5.9 mA
Relay energized2.8 mA < I < 5.3 mA
Response delay≤ 1 ms
Connection sidecontrol side
Connectionoutput I: terminals 13, 14 ; output II: terminals 15, 21 ; output III: terminals 16+, 17-
Output Irelay , signal
Contact loading253 V AC/1 A/cos φ ≥ 0.7; 24 V DC/1 A resistive load
Mechanical life50 x 106 switching cycles
Output IIrelay , signal
Contact loading253 V AC/1 A/cos φ ≥ 0.7; 24 V DC/1 A resistive load
Mechanical life50 x 106 switching cycles
Output IIIelectronic output, passive , fault signal
Rated voltage10 ... 30 V DC
Signal level1-signal: (L+) -2.5 V (7 mA, short-circuit proof) / 0-signal: blocked output
(Leakage current ≤ 10 mA)
Transfer characteristics
Switching frequency5 Hz
Display elementsLEDs
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Low voltage
Directive 2014/35/EUEN 61010-1:2010
Machinery Directive
Directive 2006/42/ECEN/ISO 13849-1:2008
Electromagnetic compatibilityNE 21:2011
Degree of protectionIEC 60529:2001
SafetyIEC/EN 61508:2010
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 280 g
Dimensions40 x 93 x 115 mm (1.6 x 3.7 x 4.5 inch) , housing type E
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-Type Examination CertificatePTB 00 ATEX 2043
MarkingEx-Hexagon II (1)GD [EEx ia] IIC [circuit(s) in zone 0/1/2]
InputEEx ia IIC
Voltage9.56 V
Current16.8 mA
Power41 mW (linear characteristic)
Maximum safe voltage253 V AC/DC (Attention! The rated voltage can be lower.)
Contact loading253 V AC/1 A/cos φ ≥ 0.7; 24 V DC/1 A resistive load
Maximum safe voltageoutput I/output II: 253 V AC/DC (Attention! Um is no rated voltage.)
Galvanic isolation
Input/Outputsafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Input/power supplysafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see

Documents: KHA6-SH-Ex1

ManualsLanguageFile TypeFile Size
ManualENGPDF3430 KB
Original Instructions/Functional Safety ManualENGPDF660 KB
HandbuchGERPDF3544 KB
Originalbetriebsanleitung/Handbuch Funktionale SicherheitGERPDF663 KB
Instruction manuals
ИнструкцииBULPDF62 KB
Návod k poużitíCZEPDF57 KB
Instruktions manualDANPDF55 KB
Instruction manualENGPDF49 KB
KasutusjuhendESTPDF53 KB
KäyttöohjeFINPDF53 KB
Manuel d'instructionsFRAPDF91 KB
BetriebsanleitungGERPDF51 KB
Οδηγίες χρήσηςGREPDF65 KB
HandleidingHOLPDF67 KB
Instruction manual / BetriebsanleitungHRVPDF65 KB
Használati útmutatóHUNPDF66 KB
Manuale di istruzioniITAPDF89 KB
Lietošanas pamācībaLAVPDF65 KB
Instrukciju vadovasLITPDF65 KB
Instrukcja obsługiPOLPDF68 KB
Manual de instruçõesPORPDF68 KB
Manual de utilizareRONPDF67 KB
Návod na poużitieSLKPDF126 KB
Manual de instruccionesSPAPDF91 KB


EPLANFile TypeFile Size
EPLAN Data Portal / EPLAN Data PortalLINK---
EPLAN macro P+F.KHA6-SH-Ex1 / EPLAN-Makro P+F.KHA6-SH-Ex1EDZ80 KB

Approvals+Certificates: KHA6-SH-Ex1

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0592APDF103 KB
EAC EAC TP TC 020/2011TC RU C-DE.MH04.B.00397PDF680 KB
Europe PTB ATEX Category (1) GDPTB 00 ATEX 2043PDF573 KB
Japan TIISTC 16041PDF270 KB
Russia Belarus Kazakhstan EAC EAC TP TC 012/2011EAEC RU C-DE.EX01.B.00102/19PDF9815 KB
Worldwide TÜV SÜD Functional Safety CertificatePM85769TPDF797 KB

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.