southsparks
Junior Member
Does anybody know of any replacement for a MEM 203 MB3 Type 3 triple-pole breaker to replace a suspect one, bearing in mind that they are obsolete, and other than
getting a pre-owned one off E-Bay, I'm hoping somebody will know of one still available, of a different make perhaps, out there, that can be fitted to the
obsolete board. Would a breaker for the Memshield 2 or the later Memshield 3 fit? Other than buying them and taking a chance, I would prefer to know
in advance, of one that would fit, as it controls an important three-phase boiler supply, and a failure of one phase will cause serious heating problems. There was a loss
of supply this morning, but the maintenance staff managed to get boilers going by turning breaker off, and re-setting, so sounds like a poor contact, probably due to
breaker being in service since 1991, and as far as I know, not been operated before. No fault currents involved, so its not a matter of damaged contacts. I have injected
some contact-cleaner to breaker, and it may well be OK now, but they would prefer there being a "spare" on site, just in case.
Thanks, Southsparks.
getting a pre-owned one off E-Bay, I'm hoping somebody will know of one still available, of a different make perhaps, out there, that can be fitted to the
obsolete board. Would a breaker for the Memshield 2 or the later Memshield 3 fit? Other than buying them and taking a chance, I would prefer to know
in advance, of one that would fit, as it controls an important three-phase boiler supply, and a failure of one phase will cause serious heating problems. There was a loss
of supply this morning, but the maintenance staff managed to get boilers going by turning breaker off, and re-setting, so sounds like a poor contact, probably due to
breaker being in service since 1991, and as far as I know, not been operated before. No fault currents involved, so its not a matter of damaged contacts. I have injected
some contact-cleaner to breaker, and it may well be OK now, but they would prefer there being a "spare" on site, just in case.
Thanks, Southsparks.