Quick change-over
August 1st 2006

ABB's OT change-over switch enables quick change-over to back-up electrical supplies should a power failure occur. It is suitable for applications that demand a constant supply of power, including GenSets, banks and utility operations.

Based on the company's OT switch range, the change-over model is available in both component and enclosed versions from 160 to 800A, and fully-rated up to 690V.

In the event of a primary electrical circuit failure, the switch can be disconnected from the primary circuit and connected to the emergency back-up system, ensuring minimal disruption to power supply should a power surge occur.

Manually operated, the OT change-over switch range is of compact design and is said to be up to 35% smaller than its OETL predecessor, enabling the unit to be installed in confined spaces.

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