ALPHA Elektrotechnik AG

Established over 90 years ago in Nidau, Switzerland, ALPHA Elektrotechnik Ltd is a company steeped in tradition.

Having started out in the power transmission business selling disconnectors for medium- and high-voltage networks, ALPHA-ET now also takes care of an independent business area — cable solutions — for the transfer of energy in the high-voltage networks of modern railways.

ALPHA-ET disconnectors have been used around the world for a number of decades and have proved to be very efficient under a wide range of conditions. Power transmission to high-speed trains works reliably and guarantees the safe operation of trains around the world. 

The reliability of the products and their safe application over many years are key hallmarks of their quality. Added to this is the outstanding level of service provided with the products by our long-serving employees, as well as on-site installation and training sessions.

Niklaus Wengistrasse 64, 2540 Grenchen

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ALPHA Elektrotechnik AG

T connector

Bolted T-connectors are the standard cable termination for the connection to transformers, motors, switchgears and other components. With the appropriate mating parts it is also possible to realise...

ALPHA Elektrotechnik AG

Center Break Disconnector CBD

The reliable all-rounder. Flexible in use, whether standing, hanging or vertically mounted, our Center Break Disconnector is adapted to your needs and can be equipped with a comprehensive set of ad...

ALPHA Elektrotechnik AG

Earthing Switch EF

Suitable for busbar earthing as well as for neutral point applications, our EF is specifically designed for your application and can be adapted to fit in existing systems. Available for short ci...

ALPHA Elektrotechnik AG

Line switch FSM

Available for rated currents up to 630A and short circuit currents up to 63/25kA, 1s

ALPHA Elektrotechnik AG

Vertical Break Disconnector TFS

Available for rated currents up to 3'150A and short circuit currents up to 100/40kA, 1s

ALPHA Elektrotechnik AG


With the mobile partial discharge equipment EGT-75 from ALPHA-ET, our customer can test the high voltage cable solution after assembling and mounting on the train.

ALPHA Elektrotechnik AG


ALPHA-ET offers a wide range of services in Traction business for train manufacturers, service providers and train operators.

ALPHA Elektrotechnik AG


For disconnectors we provide FIRST CLASS SERVICE to ensure long-life, secure and reliable operation of the installed equipment. A team of qualified experts will support you in all necessary step...

ALPHA Elektrotechnik AG

Jumper cable

In general, a distinction is made between fully insulated and partly insulated jumper cables. Both cables are manufactured according to customers’ needs. They are optimized for the use in traction ...

ALPHA Elektrotechnik AG

Flexible termination - ESF 40S

The flexible cable termination ESF 40S is a dry, slip-on termination for modular assembly. It largely consists of prefabricated, slip-on silicone components. The use of silicone sheds makes it idea...

ALPHA Elektrotechnik AG

Pluggable terminations CCS and ESF-S

CCS cable termination The CONNEX Connection System is a dry pluggable cable termination for cable to cable connections of all kind. The connectors on the equipment-side are designed to meet EN 5...

ALPHA Elektrotechnik AG

Post insulator

The ALPHA silicone rubber post insulators are used for a wide range of high voltage applications. They support the cable terminations, busbars and other equipment of the HV-cabling on trains. Stand...

ALPHA Elektrotechnik AG

Rigid termination - ESF RS / DS

The rigid cable termination ESF RS and DS are dry, slip-on terminations for modular assembly. They largely consist of one compact, prefabricated, slip-on silicone component. The use of silicone sh...

  • Swissrail Industry Association
  • Taubenstrasse 32
  • CH-3011 Bern

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