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/EN 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

General specifications
Signal typeDigital Input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Systematic capability (SC)SC 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 µA)
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)
Machinery Directive
Directive 2006/42/ECEN/ISO 13849-1:2015
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


ECLASS 11.027210121
ECLASS 10.0.127210121
ECLASS 9.027210121
ECLASS 8.027210121
ECLASS 5.127210121
ETIM 8.0EC001485
ETIM 7.0EC001485
ETIM 6.0EC001485
ETIM 5.0EC001485
UNSPSC 12.132101514

Documents: KHA6-SH-Ex1

ManualsLanguageFile TypeFile Size
Original Instructions/Functional Safety ManualENGPDF660 KB
System Manual ENGPDF3524 KB
Originalbetriebsanleitung/Handbuch Funktionale SicherheitGERPDF663 KB
SystemhandbuchGERPDF3557 KB
Original Instructions/Functional Safety ManualHUNPDF2028 KB
Instruction manuals
ИнструкцииBULPDF143 KB
Návod k poużitíCZEPDF138 KB
Instruktions manualDANPDF136 KB
Instruction manualENGPDF142 KB
KasutusjuhendESTPDF133 KB
KäyttöohjeFINPDF133 KB
Manuel d'instructionsFRAPDF137 KB
BetriebsanleitungGERPDF142 KB
Οδηγίες χρήσηςGREPDF144 KB
HandleidingHOLPDF137 KB
Instruction manual / BetriebsanleitungHRVPDF136 KB
Használati útmutatóHUNPDF137 KB
Manuale di istruzioniITAPDF136 KB
Lietošanas pamācībaLAVPDF136 KB
Instrukciju vadovasLITPDF137 KB
Instrukcja obsługiPOLPDF138 KB
Manual de instruçõesPORPDF137 KB
Manual de utilizareRONPDF137 KB
ИнструкцииRUSPDF143 KB
Návod na poużitieSLKPDF137 KB
Navodila za uporaboSLVPDF135 KB
Manual de instruccionesSPAPDF137 KB
ManualSWEPDF134 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-0592BPDF78 KB
EAC Pepperl+Fuchs EAC TP TC 020/2011EAEC N RU D-DE.PA01.B.95500/21PDF748 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

Associated Products: KHA6-SH-Ex1

Matching System Components
Cable trunking is integrated in the mounting profile, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Standard length 1.8 m (5.8 ft), simple to customize to application space, With mounting aidspa
3-pin screw terminal, For KF modules of K-System, Packaging unit: 5 pieces greenpa
3-pin screw terminal, For KF modules of K-System, Packaging unit: 5 pieces bluepa
Coding of K-System terminal blocks, Coding of LB/FB-System front sockets, Packaging unit: 20 x 6 coding pinspa

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.