Serviceline Industrial Sensors
Serviceline Explosion Protection

AS-Interface safety module VAA-2E2A-KE1P-S/E2

  • 2 safe inputs for mechanical contacts such as EMERGENCY-STOP switch
  • Housing with removable terminals
  • Communication monitoring
  • Power supply of outputs from the external auxiliary voltage
  • Power supply of inputs from the module
  • Function display for bus, ext. auxiliary voltage, inputs and outputs
  • Output overload monitoring
  • Switchable internal logic operation of the inputs and outputs via parameter bit
  • Addressing jack

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  VAA-2E2A-KE1P-S/E2

Product Description
KE1-Safety module for the control cabinet
2 safety-related inputs and
2 conventional electronic outputs
General specifications
Node typeSafety-Slave
AS-Interface specificationV2.1
Required gateway specification≥ V2.1
UL File NumberE223772
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Performance level (PL)PL e
MTTFd200 a
Indicators/operating means
LED FAULTerror display; LED red
red: communication error or address is 0
red flashing: Output supply overload
LED PWRAS-Interface voltage; LED green
LED AUXext. auxiliary voltage UAUX ; LED green
LED INswitching state (input); 2 LED yellow
LED OUTSwitching state (output); 2 LED yellow
Electrical specifications
Auxiliary voltage (output)20 ... 30 V DC PELV
Rated operating voltage26.5 ... 31.6 V from AS-Interface
Rated operating current≤ 70 mA
Protection classIII
Surge protectionUAUX, Ue: overvoltage category II, safe isolated power supplies (PELV)
Number/Type2 safety-related inputs for mechanical contacts, crossed-circuit monitored:
2 single-channel contacts: up to category 2/PL c to ISO 13849-1 or
1 2-channel contact: up to category 4/PL e to ISO 13849-1
Cable length must not exceed 300 m per input.
Supplyfrom AS-Interface
Voltage20 ... 30 V DC pulsed
Current loading capacityinput current limited ≤ 15 mA,
overload and short-circuit resistant
Number/Type2 conventional electronic outputs, PNP
Supplyfrom external auxiliary voltage UAUX
Voltage≥ (UAUX - 0.5 V)
Current0.5 A per output
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 62026-2:2013 EN 61496-1:2004
Standard conformity
Insulation coordinationEN 50178:1998
Electromagnetic compatibilityEN 61000-6-2:2005, EN 61000-4-5:2005 1 kV asymmetric, criterion B, EN 61000-6-4:2007
Degree of protectionEN 60529:2000
Fieldbus standardEN 62026-2:2013
Electrical safetyEN 50178:1998 IEC 60204-1:2007
Emitted interferenceEN 61000-6-4:2007
AS-InterfaceEN 62026-2:2013
Functional safetyEN ISO 13849-1:2015 up to PL e, IEC 61508:2010 and IEC 62061:2005/A2:2015 up to SIL 3
StandardsNFPA 79:2002
Programming instructions
IO code7
ID codeB
ID1 codeF
ID2 code0
Data bits (function via AS-Interface)InputOutput
D0 dyn. safety code 1 OUT 1
D1 dyn. safety code 1 OUT 2
D2 dyn. safety code 2 -
D3 dyn. safety code 2 -
Parameter bits (programmable via AS-i)function
P0Logic operation:
P0 = 1 (default settings): The outputs are controlled via AS-Interface.
P0 = 0: The outputs are controlled via AS-Interface or the inputs. The corresponding output is activated on opening the contacts of an input.
P1not used
P2not used
P3not used
Ambient conditions
Ambient temperature-25 ... 50 °C (-13 ... 122 °F)
Storage temperature-25 ... 85 °C (-13 ... 185 °F)
Relative humidity85 % , noncondensing
Climatic conditionsFor indoor use only
Altitude≤ 2000 m above MSL
Shock and impact resistance10 g, 16 ms in 6 spatial directions 1000 shocks
Vibration resistance0.75 mm 10 ... 57 Hz , 5 g 57 ... 150 Hz, 20 cycles
Pollution degree2
Mechanical specifications
Degree of protectionIP20
Connectionremovable spring terminals
Conductor cross-section 0,25 ... 2,5 mm2
HousingPA 66-FR
Mass80 g
Height99.6 mm
Width22.5 mm
Length48.5 mm
MountingDIN mounting rail
Tightening torque of clamping screws0.5 Nm ... 0.6 Nm


ECLASS 13.027272603
ECLASS 12.027242604
ECLASS 11.027242604
ECLASS 10.0.127242604
ECLASS 9.027242604
ECLASS 8.027242604
ECLASS 5.127242604
ETIM 9.0EC001599
ETIM 8.0EC001599
ETIM 7.0EC001599
ETIM 6.0EC001599
ETIM 5.0EC001599
UNSPSC 12.139121535

Details: VAA-2E2A-KE1P-S/E2


The VAA-2E2A-KE1-S/E2 is an AS-Interface safety module with 2 safety-related inputs and 2 conventional outputs. A dual channel mechanical switch or in each case a single channel mechanical switch can be connected to the two safety-related inputs. The outputs are conventional electronic outputs, which may be loaded in total with 1 A (max. 0,5 A per output).

The housing, only 22.5 mm in width and 48.5 mm in height, takes up little place in the switch cabinet. The module features an integrated addressing jack is mounted by snapping onto the 35 mm DIN rail in accordance with EN 50022. Plug-in terminals are used for connection. A 4-way terminal block (black) is used for the inputs. The AS-Interface is connected via a double terminal block (yellow).

The current switching state of each channel is indicated by an LED, located on the module's top side. Similarly, an LED is provided to monitor the AS-Interface communication and to indicate that the module has the address 0. If a communication error occurs, the outputs are de-energized (only P0=1).

When single channel force-directed mechanical switches are connected, up to Performance level c in accordance with EN ISO 13849-1 can be achieved, given the appropriate wiring and selection of switch.

When a two-channel force-directed mechanical switch is connected, up to Performance level e in accordance with EN ISO 13849-1 can be achieved, given the appropriate wiring and selection of switch.

As per approval in accordance with IEC 61508 and IEC 62061 up to SIL 3 can be achieved.

Both inputs of the module are assigned. The two channels of the mechanical switch are monitored for a cross circuit. LEDs are also provided to indicate AS-Interface voltage and external power supply.

Product Documentation: VAA-2E2A-KE1P-S/E2

Language Selection:
ManualsLanguageFile TypeFile Size
Instruction Manual VAA-2E2A-KE1-S/E2ENGPDF1634 KB

Approvals: VAA-2E2A-KE1P-S/E2

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Declaration of Conformity
EU-Declaration of conformityTDOC-4494BENGENGPDF197 KB

Associated Products: VAA-2E2A-KE1P-S/E2


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