I'm after some practical guidance on what might be needed for putting together components into a DIN rail enclosure, and ensuring a conformant end product. I'm aware of regulation 536.4.203 in BS7671 which pushes responsibility for conformance assessment of any integration of components into an enclosure to BS EN 61439 to the assembler unless it is done all from one manufacturer in accordance with that manufacturer's instructions. For custom assemblies, this will rarely be the case, so practically what needs to be done for the conformity assessment?
Our use case for this is assembling a simple set of components - RCD, SP Isolators (as functional switches), BS88 fuseholders (for circuit protection) and neon indicators to provide a switching unit for replacing older dimmed circuit control with switched hard power circuits to feed new-fangled LED lights. We might find a single manufacturer to do all of this in one of their own enclosures, but we might not. If not, what would we need to do without spending tens of thousands on external testing?
The documentation required for a technical file to back up an associated Declaration of Conformity doesn't look to be too bad. I guess we would need copies of the relevant sections of 61439 and review those requirements, recording how we have assessed conformity with each and relying on manufacturer data sheets.
Thanks in advance,
Jason.
