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Asco 4000 Auxiliary Contact Set 14AB/14BB

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SKU: 4000-14AB/14BB Category Tag Brand:

The Asco 4000 Auxiliary Contact Set Accessory 14AB/14BB offers an additional contact set to indicate switch position on standard 30-400A Asco 4000 transfer switches.


  • Offers one additional auxiliary contact set to indicate switch position.
  • Max of three total sets allowed with two contact sets coming standard with the switch.
  • For standard 30-400A Asco 4000 transfer switches (not available for 150-400A Closed and Delayed Transition switches).

For 600-4000A Asco 4000 transfer switches, including Closed and Delayed Transition switches, order Accessory 14AC/14BC.

Factory-installed. Must be ordered with an Asco 4000 transfer switch, if required.

Accessory Number



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