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HVR history
1855
1884-1920
1921
1932-1940
1953-1974
1999
2007

HVR history

Have a look at a company history of over 100 years

1855

The company C. Conradty was founded in Nuremberg by Conrad Conradty (1827-1901)  for producing pencils

1884-1920

Conradty developed Arc-Lamps, Graphite Electrodes and started with Carbon and Graphite specialized products

1921

Conradty started the production of the Si Metal Ceramic Compound Resistors

1932-1940

Conradty started the production of the Silicon Carbide Heating Elements and the Silicon Carbide Varistors

1953-1974

Conradty started the production of NTC/PTC Resistors and Zinc Oxide Varistors

1999

Foundation of Conradty Mechanical and Electrical GmbH as a separate division with the product lines Varistors, Resistors, Carbone and Graphite special products.

2007

HVR International GmbH took over the Varistor and Resistor production line from Conradty M&E

Welcome To HVR International

Our extensive programme includes the ideal component for your application.
We develop and manufacture parts according to your specification.
Our Testlab will assist to select the best solution for your application.

  • Si-Metal Ceramic Resistors (High Load, Non Inductive Compound Resistors)
  • VDR – Silicon Carbide non-linear Resistors (Varistors) (Non-Inductive Compound non-linear Resistor, voltage dependent for high and low voltage application)
  • Metal Oxide Varistors (voltage dependent resistors on a Zinc Oxide basis)
  • Silicon Carbide Heating Elements (High Temperature Resistor Heating Elements)

The HVR Group

The HVR Group of resistor technology companies comprises three manufacturing divisions. (klick on their name to enter their webpage)

 

  • HVR International Limited, located in Jarrow, Tyne and Wear, UK,
    specialises in Linear Carbon Ceramic Resistor
  • HVR Pentagon Limited, located in Birmingham, West Midlands, UK,
    manufactures a wide range of Wire Wound Power Resistor
  • HVR International GmbH, located in Roethenbach, Bavaria, DE,
    specialises in Nonlinear Silicon Carbide VaristorZinc Oxide Varistor
    and Si-Metal Ceramic Resistor

Meet Our Team

Ralf Vespermann
Ralf VespermannCEO
Ralf Vespermann is responsible for sales and marketing as well as the development of new products together with Gerhard Laugner and his team.
Gerhard Laugner
Gerhard LaugnerProduction & Techn. Manager
Gerhard Laugner is responsible for the technical support and the controlling of the production.
Sabine Pfeiffer
Sabine PfeifferHead of Domestic Sales
Sabine Pfeiffer is head of domestic sales and responsible for the controlling of the back office