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What do the LED's mean on the 400/630Amp NSX switches?

The NSX630/400 switches do have part of a 'de-tuned' micrologic trip unit to provide self protection.  Under certain light conditions then the LED's can be seen under the surface of the label of the switch.  These LED's have no meaning as the device is a switch and will not break a fault. They are just remnants of the micrologic.
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