Experts in LV Switchgear upgrades.......
It has come to our attention that there are ACB replacements on the market that utilises an old ACB chassis whilst mounting new FIXED ACB on to it. The old chassis then plugs into the existing cluster contacts.
THE OLD CLUSTER CONTACTS AND CONTACT SPRINGS ARE PART OF THE FIXED CASSETTE AND ARE NOT REPLACED
We are of the opinion that an ACB replacement should replace all of the old parts including old cluster contacts and springs. The ExEllison COMPLETE replacement introduces a new truly fully withdrawable ACB including the fixed cassette. Simply plugging in a new front does not replace critical components.
Old cluster contacts and springs shown with chassis removed for clarity.
ExEllison's COMPLETE ACB replacement provides a new withdrawable cassette as we go right back to the busbars
Plugging in a new ACB into an old chassis only does half the job!
You don't want your ACB cassette to end up like this after a plug-in retro-fit ACB………
The danger of retaining old cluster contacts,
springs and racking mechanisms.
DON'T BE CONFUSED BY INFERIOR RETROFIT PRODUCTS!
'As a consulting engineer tasked by Grampian NHS Trust with renewal of circuit breakers spread over three
hospitals in Aberdeen, I have to say I did anticipate a nerve-wracking time given the critical nature of the installations with regard
to acute patient care.
Looking back I can honestly say that the works were carried out better than I dared hope. To have
some 16 air circuit breakers replaced in-situ without a glitch was a real achievement, especially considering the complex control
circuitry involved with mains/generator change-over controls etc.'