Dead Tank Circuit Breakers

Dead Tank Circuit Breakers

Product Overview

We offer dead tank circuit breakers for applications from 72.5 kV to 550 kV with a service life of up to 50 years. Our DT circuit breakers deliver the greatest possible reliability – even in extreme environmental conditions across the globe.

Features & advantages

  • High short-circuit breaking currents possible (up to 90 kA with one interrupter unit)
  • High seismic withstand capability up to 0.5 g
  • Available with porcelain or composite insulators
  • Temperatures from -60 to 55°C with mixed gas solutions or various heating systems
  • Suitable for altitudes of up to 1,000 meters
  • Gas leakage rate of less than 0.1 % per year
  • Inspection after 12 and maintenance after 25 years
  • 10,000 switching operations are guaranteed
  • Product life time of up to 50 years
  • Easy installation and commissioning: only few assemblies
  • Installation, commissioning, service, training and technical advice from a single source
  • Guaranteed spare parts for all circuit breakers for a minimum of 25 years after delivery


More Information


+66 2 063 5262-3, +66 83 440 1404