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Replacement breaker for old Memshield One disboard MEM 203 MB3
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<blockquote data-quote="southsparks" data-source="post: 458074" data-attributes="member: 157"><p>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</p><p></p><p>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</p><p></p><p>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</p><p></p><p>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</p><p></p><p>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</p><p></p><p>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</p><p></p><p>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.</p><p></p><p>Thanks, Southsparks.</p></blockquote><p></p>
[QUOTE="southsparks, post: 458074, member: 157"] 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. [/QUOTE]
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Replacement breaker for old Memshield One disboard MEM 203 MB3
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