Serviceline Industrial Sensors
Serviceline Explosion Protection

AS-Interface repeater VAR-KE3-TERM

  • Minimum delay of signal
  • Line lengthening by 100 m (max. 2 repeater in series)
  • Galvanic isolation between AS-Interface segments A and B
  • No parameterization
  • Need no specific address on the AS-Interface bus
  • Housing with removable terminals
  • The integrated terminator permits up to 200 m network lengths on Segment A

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  VAR-KE3-TERM

Product Description
AS-Interface advanced repeater with terminator
General specifications
AS-Interface specificationV3.0
Required master specification≥ V2.0
UL File NumberE223772 only from low voltage, limited energy source (SELV or PELV) or listed Class 2 source
Functional safety related parameters
MTTFd155 a
Indicators/operating means
switches the segment A terminator on/off
LED FAULT SEG ASegment A error display; red LED
red: communication error
LED FAULT SEG BSegment B error display; red LED
red: communication error
LED PWR SEG AAS interface voltage segment A; green LED
LED PWR SEG BAS-Interface voltage segment B; green LED
LED TERMSegment A bus terminator switched on
LED U>26VSegment A voltage > 26 V
LED U>18,5VSegment A voltage > 18.5 V
Electrical specifications
Insulation voltage≥ 500 V
Rated operating voltage26.5 ... 31.6 V from AS-Interface
Rated operating current60 mA (per strand element), 120 mA (total)
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 62026-2:2013 EN 61000-6-2:2005, EN 61000-6-4:2007 EN 61000-6-3:2001 IEC 62026-2:2008
Approvals and certificates
UL approvalAn isolated source with a secondary open circuit voltage of ≤ 30 VDC with a 3 A maximum over current protection. Over current protection is not required when a Class 2 source is employed. UL mark does not provide UL certification for any functional safety rating or aspects of the device.
Ambient conditions
Ambient temperature0 ... 55 °C (32 ... 131 °F)
Storage temperature-25 ... 75 °C (-13 ... 167 °F)
Mechanical specifications
Degree of protectionIP20 according to EN 60529
Connectionremovable terminals, terminal connection ≤ 2.5 mm2
HousingPA 66-FR
MountingDIN mounting rail


ECLASS 11.027040301
ECLASS 10.0.127040301
ECLASS 9.027040301
ECLASS 8.027040301
ECLASS 5.127040301
ETIM 8.0EC001449
ETIM 7.0EC001449
ETIM 6.0EC001449
ETIM 5.0EC002540


CADFile TypeFile Size
3-D model / 3-D-ModellSTP4525 KB
CAD Portal / CAD PortalLINK---

Approvals+Certificates: VAR-KE3-TERM

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2454APDF163 KB
US CA ULE223772LINK---

Associated Products: VAR-KE3-TERM

Accessory of
AS-Interface power extenderfa

Function: VAR-KE3-TERM

The Advanced-Repeater VAR-KE3-TERM galvanically separates two AS-Interface circuits, and conditions the AS-Interface signals electrically, which extends the cable length by 100 m. The Advanced-Repeater includes a Bus Termination, permitting a line extension of up to 200 m. The Bus Termination is switchable. Two repeaters can be cascaded, resulting in a maximum cable length of 300 m. With one Bus Termination included in line, the maximum circuit extension is up to approximately 600 m.

The Advanced-Repeater features an alignment between sender and receiver that has been optimized even further and offers a shorter delay when the signals pass through the Advanced-Repeater.

The Advanced-Repeater does not require any parameterisation and no own address in the AS-Interface; the overall number of slaves (31 or 62) per branch remains unchanged.

The housing, only 22.5 mm in width, takes up little place in the switch cabinet. The module is mounted by snapping it on to the 35 mm mounting rail in keeping with European standard EN 50022. Pluggable screw terminals are used for connection. This method of mounting permits easy removal during initial operation or servicing.

On account of the galvanic separation, each segment requires a power supply unit or a power extender.

Two LEDs indicate the correct polarity of the AS-Interface cables; two LEDs indicate any communication errors in the respective AS-Interface circuits.

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AS-Interface Product Range

Get to know our full range of AS-Interface products.