CD Motor Operating Mechanisms

CD Motor Operating Mechanisms
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Our range of motor operating mechanisms is designed to ensure the best performances and reliability, which are the result of our 60-year old experience.

Over 100,000 disconnectors and switchers installed in more than 100 countries worldwide and operated by our mechanisms are the guarantee of best-buys.

CD Motor Operating Mechanisms

The versatility of the CD motor operating mechanisms allows multiple options for operation, and adaptation to specific requirements.

Reliability and Maintenance

  • The design is mechanically non-reversible, to prevent any unwanted motion of the disconnector, under the effect of wind, electrodynamic or other external efforts.
  • The housing is made of aluminium alloy, to prevent any corrosion, and guarantees a high protection degree (IP 44, or higher upon request).
  • An anti-condensation heater prevents harmful moisture condensation inside the cabinet.
  • The external components are either aluminium alloy or hot dip galvanized or stainless steel.

To ensure the best dependability on site, the CD has undergone the most severe test conditions:

  • extra low temperatures down to -50 °C
  • heavy wetting
  • extended mechanical endurance (exceeding IEC standard requirements)

Due to its lifetime greased gearbox, no maintenance is required on the CD motor operating mechanisms.

Optional and Safety

The electrical operation of the disconnector through the CD mechanism can be done remotely, or from local push buttons. A local/remote selector prevents any interference between the two control modes. The applicable voltage range extends from 85% to 110% of the rated voltage.

The manual operation of the disconnector is possible by the means of a manual handle. The insertion of the handle is allowed only if the electrical interlocks are permissive and the pushbutton is energized and operated. This action also switches off automatically the

For more information

Other COELME-EGIC Documents


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