If you have older PSX breakers without the trip delay config option, you can send them back to DCC Specialties for the upgrade free of charge; you will have to pay for shipping both ways.
I've tried sending them an email and got this reply,....
|There was a temporary problem delivering your message to info@....
This has turned into a repeat message. Is there another email address I should be using,...or someone else I should contact about this 'upgrade??