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    • Short-circuit and earth fault indicators for underground cables
      • Fault location with network monitoring
        • ComPass Bs 2.0
        • ComPass B 2.0
        • ComPass D
      • Fault location with direction display
        • Sigma D++
        • Sigma D+
        • Sigma D
      • Fault location without direction indicator
        • Sigma F+E 3 2.0
        • Sigma F+E 2.0
        • Sigma 2.0
        • Sigma L series
      • Current and voltage sensors
        • Phase current sensors
        • Voltage sensors
        • Summation current sensor
      • Further products
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    • Overhead line indicator
      • with remote signaling
        • Smart Navigator 2.0
      • without remote signal
        • Navigator LM | Navigator LM HV
        • Navigator LED + Flag
      • Accessories
    • Voltage detectors and detecting systems
      • Integrated systems
        • Wega 1
        • Wega 1 LV
        • Wega 2
        • Wega 2 V
        • Wega T1/ Wega T1 Vario
        • Wega Rail Series
        • Wega 1 LV
      • Phase comparator for integrated systems
        • Orion M1
        • Orion 3.1
      • Pluggable systems
        • LRM-ST | HR-ST
      • Mobile voltage tester
        • FL-I
        • Comet series
      • Mobile voltage tester for railroad overhead lines
        • BO-A 2.0
        • BO-A AC/DC
      • Mobile phase comparator
        • Compare 2.0
        • PG II
    • Remote monitoring
      • Control room connection
        • iHost
      • for short-circuit and earth fault indicators
        • Reporter 3.0
    • Earthing devices
      • Earthing and short-circuiting devices
        • Three-phase
        • Single pole
        • Short circuiting bars
      • Line connection points
      • Line clamps
      • Earth connection points
      • Earth potential connections
    • Substation accessories
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  • Home page
  • Products
    • Short-circuit and earth fault indicators for underground cables
      • Fault location with network monitoring
        • ComPass Bs 2.0
        • ComPass B 2.0
        • ComPass D
      • Fault location with direction display
        • Sigma D++
        • Sigma D+
        • Sigma D
      • Fault location without direction indicator
        • Sigma F+E 3 2.0
        • Sigma F+E 2.0
        • Sigma 2.0
        • Sigma L series
      • Current and voltage sensors
        • Phase current sensors
        • Voltage sensors
        • Summation current sensor
      • Further products
      • Accessories
    • Overhead line indicator
      • with remote signaling
        • Smart Navigator 2.0
      • without remote signal
        • Navigator LM | Navigator LM HV
        • Navigator LED + Flag
      • Accessories
    • Voltage detectors and detecting systems
      • Integrated systems
        • Wega 1
        • Wega 1 LV
        • Wega 2
        • Wega 2 V
        • Wega T1/ Wega T1 Vario
        • Wega Rail Series
        • Wega 1 LV
      • Phase comparator for integrated systems
        • Orion M1
        • Orion 3.1
      • Pluggable systems
        • LRM-ST | HR-ST
      • Mobile voltage tester
        • FL-I
        • Comet series
      • Mobile voltage tester for railroad overhead lines
        • BO-A 2.0
        • BO-A AC/DC
      • Mobile phase comparator
        • Compare 2.0
        • PG II
    • Remote monitoring
      • Control room connection
        • iHost
      • for short-circuit and earth fault indicators
        • Reporter 3.0
    • Earthing devices
      • Earthing and short-circuiting devices
        • Three-phase
        • Single pole
        • Short circuiting bars
      • Line connection points
      • Line clamps
      • Earth connection points
      • Earth potential connections
    • Substation accessories
  • About us
    • The company
    • Our team
    • Locations
    • References
    • Certification and standards
  • Career
    • Vacancies
    • Values & Benefits
    • Experienced professionals
    • Pupils | Students
    • Stories
  • Service & Support
    • Downloads
    • Contact person
    • Maintenance test
    • Product inquiry
    • Complaint
    • Product discontinuations
  • Latest news
    • News
    • Blog
    • Trade fairs & events
  • Products
    • Short-circuit and earth fault indicators for underground cables
      • Fault location with network monitoring
        • ComPass Bs 2.0
        • ComPass B 2.0
        • ComPass D
      • Fault location with direction display
        • Sigma D++
        • Sigma D+
        • Sigma D
      • Fault location without direction indicator
        • Sigma F+E 3 2.0
        • Sigma F+E 2.0
        • Sigma 2.0
        • Sigma L series
      • Current and voltage sensors
        • Phase current sensors
        • Summation current sensor
        • Voltage sensors
      • Further products
      • Accessories
    • Overhead line indicator
      • with remote signaling
        • Smart Navigator 2.0
      • without remote signal
        • Navigator LM | Navigator LM HV
        • Navigator LED + Flag
      • Accessories
    • Voltage detectors and detecting systems
      • Integrated systems
        • Wega 1
        • Wega 1 V
        • Wega 2
        • Wega 2 V
        • Wega T1/ Wega T1 Vario
        • Wega Rail Series
        • Wega 1 LV
      • Phase comparator for integrated systems
        • Orion M1
        • Orion 3.1
      • Pluggable systems
        • LRM-ST | HR-ST
      • Mobile voltage tester
        • Comet series
        • FL-I
      • Mobile voltage tester for railroad overhead lines
        • BO-A 2.0
        • BO-A AC/DC
      • Mobile phase comparator
        • Compare 2.0
        • PG II
    • Remote monitoring
      • Control room connection
        • iHost
      • for short-circuit and earth fault indicators
        • Reporter 3.0
    • Earthing devices
      • Earthing and short-circuiting devices
        • Three-phase
        • Single pole
        • Short circuiting bars
      • Line connection points
      • Line clamps
      • Earth connection points
      • Earth potential connections
    • Substation accessories
    • Short-circuit and earth fault indicators for underground cables
      • Fault location with network monitoring
        • ComPass Bs 2.0
        • ComPass B 2.0
        • ComPass D
      • Fault location with direction display
        • Sigma D++
        • Sigma D+
        • Sigma D
      • Fault location without direction indicator
        • Sigma F+E 3 2.0
        • Sigma F+E 2.0
        • Sigma 2.0
        • Sigma L series
      • Current and voltage sensors
        • Phase current sensors
        • Summation current sensor
        • Voltage sensors
      • Further products
      • Accessories
    • Overhead line indicator
      • with remote signaling
        • Smart Navigator 2.0
      • without remote signal
        • Navigator LM | Navigator LM HV
        • Navigator LED + Flag
      • Accessories
    • Voltage detectors and detecting systems
      • Integrated systems
        • Wega 1
        • Wega 1 V
        • Wega 2
        • Wega 2 V
        • Wega T1/ Wega T1 Vario
        • Wega Rail Series
        • Wega 1 LV
      • Phase comparator for integrated systems
        • Orion M1
        • Orion 3.1
      • Pluggable systems
        • LRM-ST | HR-ST
      • Mobile voltage tester
        • Comet series
        • FL-I
      • Mobile voltage tester for railroad overhead lines
        • BO-A 2.0
        • BO-A AC/DC
      • Mobile phase comparator
        • Compare 2.0
        • PG II
    • Remote monitoring
      • Control room connection
        • iHost
      • for short-circuit and earth fault indicators
        • Reporter 3.0
    • Earthing devices
      • Earthing and short-circuiting devices
        • Three-phase
        • Single pole
        • Short circuiting bars
      • Line connection points
      • Line clamps
      • Earth connection points
      • Earth potential connections
    • Substation accessories

    From energy technology to the railroad sector: discover our wide range of products for your station and application.

  • About us
    • The company
    • Our team
    • Locations
    • References
    • Certification and standards
    • The company
    • Our team
    • Locations
    • References
    • Certification and standards

    Medium-voltage technology – Made in Germany. For over 75 years, we have been working hand in hand with our customers for a more efficient and secure grid.

  • Career
    • Vacancies
    • Values & Benefits
    • Experienced professionals
    • Pupils | Students
    • Stories
    • Vacancies
    • Values & Benefits
    • Experienced professionals
    • Pupils | Students
    • Stories

    With us, you can expect an attractive working environment with exciting tasks in the field of electrical engineering. Find out more about your career at Horstmann.

  • Service & Support
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    • Maintenance test
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    • Contact person
    • Downloads
    • Maintenance test
    • Product inquiry
    • Complaint
    • Product discontinuations

    Horstmann customer service is there for you. Here you will find the right contact person and helpful information about our products.

  • Latest news
    • News
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    • News
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    • Trade fairs & events
    NEU

    Find out more about the latest news about our products, companies, trade fair dates and a variety of blog posts.

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Author: Public-Name-HM-KK

Safety and efficiency by retrofitting a transformer station

Anwenderbeispiel Wega T1 Electro Trading

Electro Trading is modernizing a transformer station at Landskrona Energi to increase safety and efficiency for the future.

What are the most frequently asked questions about BO-A AC/DC?

Häufig gestellte Fragen zu BO-A AC/DC

What is the measurement range of the voltage detector? How does the display work? Does it have DB approval?

Successful cooperation with MAXETA in Norway

We regularly introduce our partners. Today it’s MAXETA’s turn.

Personal News – New Export Sales Manager

Personal News - Vincenet Vogt befördert

Vincent Dominik Vogt takes over responsibility for international sales as the new Export Sales Manager, thereby strengthening Horstmann’s global market presence.

CSOR – The current sensor for earth cables

CSOR - der Stromsensor für Massekabel

The new CSOR current sensor enables simple and safe monitoring of earth cables – regardless of the cable type.

Carnival: living community, sharing joy

Horstmann Team verkleidet sich an Altweiber

A day dedicated to togetherness, joie de vivre and cherished customs.

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Horstmann Schriftzug (Logo) in Weiß

PASSION FOR PERFECTION

Your strong partner in the field of medium-voltage technology

Products

  • Short-circuit and earth fault indicators for underground cables
    • Fault location with network monitoring
      • ComPass Bs 2.0
      • ComPass B 2.0
      • ComPass D
    • Fault location with direction display
      • Sigma D++
      • Sigma D+
      • Sigma D
    • Fault location without direction indicator
      • Sigma F+E 3 2.0
      • Sigma F+E 2.0
      • Sigma 2.0
      • Sigma L series
    • Current and voltage sensors
      • Phase current sensors
      • Summation current sensor
      • Voltage sensors
    • Further products
    • Accessories
  • Overhead line indicator
    • with remote signaling
      • Smart Navigator 2.0
    • without remote signal
      • Navigator LM | Navigator LM HV
      • Navigator LED + Flag
    • Accessories
  • Voltage detectors and detecting systems
    • Integrated systems
      • Wega 1
      • Wega 1 V
      • Wega 2
      • Wega 2 V
      • Wega T1/ Wega T1 Vario
      • Wega Rail Series
      • Wega 1 LV
    • Phase comparator for integrated systems
      • Orion M1
      • Orion 3.1
    • Pluggable systems
      • LRM-ST | HR-ST
    • Mobile voltage tester
      • Comet series
      • FL-I
    • Mobile voltage tester for railroad overhead lines
      • BO-A 2.0
      • BO-A AC/DC
    • Mobile phase comparator
      • Compare 2.0
      • PG II
  • Remote monitoring
    • Control room connection
      • iHost
    • for short-circuit and earth fault indicators
      • Reporter 3.0
  • Earthing devices
    • Earthing and short-circuiting devices
      • Three-phase
      • Single pole
      • Short circuiting bars
    • Line connection points
    • Line clamps
    • Earth connection points
    • Earth potential connections
  • Substation accessories
  • Short-circuit and earth fault indicators for underground cables
    • Fault location with network monitoring
      • ComPass Bs 2.0
      • ComPass B 2.0
      • ComPass D
    • Fault location with direction display
      • Sigma D++
      • Sigma D+
      • Sigma D
    • Fault location without direction indicator
      • Sigma F+E 3 2.0
      • Sigma F+E 2.0
      • Sigma 2.0
      • Sigma L series
    • Current and voltage sensors
      • Phase current sensors
      • Summation current sensor
      • Voltage sensors
    • Further products
    • Accessories
  • Overhead line indicator
    • with remote signaling
      • Smart Navigator 2.0
    • without remote signal
      • Navigator LM | Navigator LM HV
      • Navigator LED + Flag
    • Accessories
  • Voltage detectors and detecting systems
    • Integrated systems
      • Wega 1
      • Wega 1 V
      • Wega 2
      • Wega 2 V
      • Wega T1/ Wega T1 Vario
      • Wega Rail Series
      • Wega 1 LV
    • Phase comparator for integrated systems
      • Orion M1
      • Orion 3.1
    • Pluggable systems
      • LRM-ST | HR-ST
    • Mobile voltage tester
      • Comet series
      • FL-I
    • Mobile voltage tester for railroad overhead lines
      • BO-A 2.0
      • BO-A AC/DC
    • Mobile phase comparator
      • Compare 2.0
      • PG II
  • Remote monitoring
    • Control room connection
      • iHost
    • for short-circuit and earth fault indicators
      • Reporter 3.0
  • Earthing devices
    • Earthing and short-circuiting devices
      • Three-phase
      • Single pole
      • Short circuiting bars
    • Line connection points
    • Line clamps
    • Earth connection points
    • Earth potential connections
  • Substation accessories

About us

  • The company
  • Our team
  • Locations
  • References
  • Certification and standards
  • The company
  • Our team
  • Locations
  • References
  • Certification and standards

Contact us

Dipl.-Ing. H. Horstmann GmbH

Humboldtstrasse 2 – 10
42579 Heiligenhaus
Phone +49 2056 976-0
info@horstmanngmbh.com

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