dc vehicle dc vehicle
DC circuit breaker DC circuit breaker DC circuit breaker Disconnector Disconnector Disconnector Rectifier DC motor

Sécheron develops and manufactures electrical equipment to meet the needs of the mining and metals industries. We provide a broad range of products and solutions for high-voltage circuits to ensure the safe, reliable, and efficient operation of equipment like the DC machine drives found in hoists, grinding mills, and rolling mills. Our products and solutions ensure:

  • Protection and safety: DC circuit breakers protect the armature of the DC machine from overload and short circuit currents, safely disconnecting the DC machine from the rectifier in the event of a fault; unlike a fuse, the DC circuit breaker is simply reclosed after a mains shutdown to ensure maximum uptime. Our disconnect switch ensures safety maintenance.
  • Flexibility: All breakers are available with either an electric or magnetic holding mechanism; the magnetic mechanism remains closed without a control current. An optional indirect release can be used as an independent tripping unit for increased flexibility.
  • Reliability: All breakers are available with a direct overcurrent release that can be adjusted to higher thresholds than the accepted short-time overload current during start-up and load changes to avoid nuisance tripping during operation; in the event of a severe system fault, the direct-overcurrent release rapidly opens the main contacts to interrupt the short circuit current even at maximum supply voltage.

Main benefits

  • Expert knowledge of electrical safety solutions
  • A wide range of products and solutions
  • Choose from standard or custom solutions
  • System design and integration
  • Extensive testing for high uptime
  • Specialist customer support technicians
  • Proven designs accepted worldwide


  • Supply program industry