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125 amp changeover switch 240V mains generator transfer metal amendment 3 125A

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1 x 125 amp 240 volt changeover switch in metal enclosure. Metal clad box with flip up door. Off-white colour.
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About Transfer Switch Generators

A transfer switch generator is most commonly used as a backup generator, but can serve other purposes. The switch itself may be automatic or may require manual use, and when connected to a generator, it gives the user the opportunity to switch from mains supply to generator supply. Using an automatic switch and a diesel generator means that, if there is no mains electricity available from the grid, the automatic switch will convert a system to the use of the diesel generator. An automatic transfer switch generator is normally used to automatically switch power supplies when specific conditions are met. These are normally used to protect against power surges or a loss of power, and are implemented in instances where losing power can lead to loss. Industrial machinery, refrigeration units, and hospital equipment are some examples of typical automatic switch applications. A manual transfer switch does not require the same sensors and systems as an automatic switch. This means that the system itself will normally be less expensive to set up, as the user effectively switches from one power source to another. However, in the case of backup generators, it is important that switching to the backup also requires the disconnection from the mains, otherwise the electrical system can overload. It is possible to purchase complete transfer switch generators that include all the sensors and circuitry, ready for installation. Alternatively, for those that already have a generator, or require a specific set-up that is not offered as part of a complete system, individual switches and other components may be purchased.