Discuss Mcb or Rcd Must be all from the same manufacturer in the Australia area at ElectriciansForums.net
Many DIN mount MCB's are made to compatible size specs but admittedly there's a few that aren't compatible with each other. In SA there's no issues about mixing and matching makes within reason but here it's very unusual to use a pre-made panel in a house unless it's a low-cost developement, nearly all our domestic DB's (CU's) are custom built by the installer.
There are a number of different types of Distribution Boards.Sometimes a panel have many types and names of mcb and rcd.Like hager,abb,legrand etc.
Is this true, That all mcb and rcd on a panel must be from the same manufacturer? If yes then why is that?
There are a number of different types of Distribution Boards.
One type, refered to as a Consumer Unit is type tested, with a selection of devices fitted. It is then rated in it's entirety at 16.5kA, even though the devices fitted may only be rated individually at 3kA, 6kA, 10kA etc.
These types are only rated at 16.5kA if the devices fitted are those used in the type testing. In effect only those of the same manufacturer as manufactured the CU.
Other DBs, such as are often used in industrial and commercial installations, are not type tested, these are not rated at 16.5kA, so there is no restriction against using devices manufactured by someone other than the manufacturer of the DB.
Reply to Mcb or Rcd Must be all from the same manufacturer in the Australia area at ElectriciansForums.net
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