A blanking member (13), for use with an electrical loadcentre bus bar mounting assembly, which is moulded of synthetic plastics material and is generally I-shaped in plan. A stepped reduded thickness portion (47) is formed at one end for locating beneath a portion of a way barrier to one side thereof, in use. A barbed tang portion (49) is formed at the other end for locking beneath a further portion of the way barrier to the other side thereof, such that the body (46) of the member locates over input terminals located in the way barrier to prevent finger access thereto, in use.
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