Serviceline Industrial Sensors
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AS-Interface sensor/actuator module VBA-4E4A-KE-ZE/R

  • Housing with removable, mechanical and color coded terminals
  • Communication monitoring
  • Inputs for 2- and 3-wire sensors
  • Isolated relay output
  • Addressing jack
  • Selectable supply to the sensors: External or from the module
  • Function display for bus, internal sensor supply, inputs, and outputs

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  VBA-4E4A-KE-ZE/R

Product Description
KE switch cabinet module, 4 inputs (PNP) and 4 relay outputs
General specifications
Node typeA/B node
AS-Interface specificationV3.0
Required gateway specification≥ V3.0
IO code7
ID codeA
ID1 code7
ID2 code7
UL File NumberE106378
Indicators/operating means
LED FAULTFault display; Red LED
red: Communication fault or address is 0
red, flashing: Overload, internal input supply
LED INTInternal input supply active; LED green
LED PWRAS-Interface voltage; LED green
LED INswitching state (input); 4 LED yellow
LED OUTSwitching state (output); 4 LED yellow
Electrical specifications
Auxiliary voltage (input)12 ... 30 V DC PELV
Rated operating voltage26.5 ... 31.6 V from AS-Interface
Rated operating current≤ 35 mA (no sensors)/max. 210 mA
Surge protectionO1 ... O4: Over voltage category II
UEXT, Ue: Over voltage category III, safe isolated power supplies (PELV)
Number/Type4 inputs for 2- or 3-wire sensors (PNP), DC
Supplyfrom AS-Interface (switch position INT, default settings) or external UEXT (switch position EXT)
Voltage21 ... 31 V DC (INT)
Current loading capacity≤ 150 mA, overload- and short-circuit protected (INT)
Input current≤ 8 mA (limited internally)
Switching pointaccording to DIN EN 61131-2 (Type 2)
0 (unattenuated)≤ 2 mA
1 (attenuated)≥ 4 mA
Signal delay< 2 ms (input/AS-Interface)
Number/Type4 relay outputs, normally open
Nominal load
Per contact2 A / 30 V DC (acc. UL max. 24 V DC); 2 A / 253 V AC
Per module8 A
Control circuit≤ 8 mA per relay (from AS-Interface)
Switching delay< 10 ms (AS-Interface/contact)
Usage categoryDC-13 and AC-14
Mechanical5 x 106
Electrical0.2 x 106 (250 V AC, 2 A, cos φ = 0.4)
Galvanic isolation
Input/Outputsafe isolation, rated insulation voltage 300 V AC
Input/AS-InterfaceSwitch position INT: None Switch position EXT: reinforced insulation, rated insulation voltage 66 V DC
Output/Outputbasic insulation, rated insulation voltage 300 V AC
Output/AS-Interfacesafe isolation, rated insulation voltage 300 V AC
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 62026-2:2013 EN 61000-6-4:2007 EN 61326-1:2006
Low voltage
Directive 73/23/EECEN 60947-1:2007
Standard conformity
Galvanic isolationEN 60947-1:2007
Degree of protectionEN 60529:2000
Fieldbus standardEN 62026-2:2013
InputEN 61131-2:2004
Emitted interferenceEN 61000-6-4:2007
AS-InterfaceEN 62026-2:2013
Noise immunityEN 61000-6-2:2005, EN 61326-1:2006, EN 62026-2:2013
Ambient conditions
Ambient temperature-25 ... 60 °C (-13 ... 140 °F)
Storage temperature-25 ... 85 °C (-13 ... 185 °F)
Relative humidity85 % , noncondensing
Climatic conditionsFor indoor use only
Altitude≤ 2000 m above MSL
Pollution degree2
Mechanical specifications
Degree of protectionIP20
Connectionremovable terminals
rated connection capacity:
rigid/flexible (with and without wire-end ferrules): 0.25 mm2 ... 2.5 mm2
for multiple-wire connection with two wires of equal cross-section:
flexible with twin wire-end ferrules: 0.5 mm2 ... 1.5 mm2
HousingPA 66-FR
Mass170 g
Height99 mm
Width22.5 mm
Length102 mm
MountingDIN mounting rail
Tightening torque of clamping screws0.5 Nm ... 0.6 Nm


ECLASS 13.027242604
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: VBA-4E4A-KE-ZE/R


The VBA-4E4A-KE-ZE/R AS-Interface I/O module is a cabinet module with 4 inputs and 4 relay outputs. The only 22.5 mm width housing requires not much space in the switch cabinet. The module is installed by snapping on the 35 mm DIN Rail in accordance with EN 50022.

The connection is made through plug-in terminals. For the inputs and outputs 4-way-terminal blocks (inputs black, outputs red) are used. The connection of the AS-Interface is made via a 2-way-terminal block (yellow). In order to avoid exchanges, the terminals for inputs and outputs as well as AS-Interface are coded mechanically.

The power supply of the inputs and the connected sensors can be made as required via the internal supply of the module (AS-Interface) or via an external voltage source. The switching is carried out by means of a switch that is positioned at the side of the module. The selection of the internal input supply is indicated via the LED INT. The current switching state of each input and output is indicated by the resp. LED IN and OUT.


The device is equipped with a communication monitoring, which switches the outputs to their de-energized state, when there is no AS-Interface communication with the module for more than 40 ms.

An overloading of the internal input supply will be reported via the function 'peripheral error' to the AS-Interface master. The communication via the AS-Interface remains intact.

Design / Simulation: VBA-4E4A-KE-ZE/R

Language Selection:
CADLanguageFile TypeFile Size
CAD Portal / CAD PortalALLLINK---

Approvals: VBA-4E4A-KE-ZE/R

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Canada UL cULE106378 cUL (QUZW7)ALLLINK---
Worldwide AS-International Association AS-Interface48502ALLPDF577 KB

Associated Products: VBA-4E4A-KE-ZE/R


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