Lynx non-combustible enclosure?

How does the Lynx comply with Regulation 421.1.201of the 18th Edition of the Wiring regulations which requires all consumer units and similar switchgear assemblies to have their enclosures constructed of a non-combustible (not flame-retardant) material?

Doesn’t need to as its below 50v.

Where does it say that?

Not applicable
See

and

Those are product standards, not installation standards.

The Low Voltage Directive (2014/35/EU) mandates safety requirements for electrical equipment operating within specific voltage ranges, including flame retardant properties for certain components like batteries used in fire and security systems. Specifically, it often requires flame-retardant batteries, typically with a UL 94 V-2 or better flammability rating, to be used within fire enclosures. This ensures the safety of products entering the market by addressing potential fire hazards.

Indeed it does. But it does nothing to ensure the safety of installations using said products. BS7671 does that.

It fully complies with the relevant industry standards appropriate for this type of equipment. Therefore, your original questions regarding its non-combustible has been answered.

422.2.2 In conditions BD2, BD3 or BD4, switchgear or controlgear shall be accessible only to authorized persons. If switchgear or controlgear is placed in an escape route, it shall be enclosed in a cabinet or an enclosure constructed of non-combustible or not readily combustible material.
When it comes to switchgear and the requirement for non-combustible materials, BS 7671 (The IET Wiring Regulations) has specific stipulations to enhance fire safety, particularly in escape routes and domestic settings.
BS 7671 (Regulation 421.1.201) requires that consumer units and similar switchgear in domestic premises have non-combustible enclosures or be enclosed in a non-combustible cabinet to contain potential fires.
In protected escape routes, switchgear or controlgear needs to be in a non-combustible or not readily combustible enclosure. For situations classified as BD2, BD3, or BD4, access to this equipment should be restricted to authorized personnel. These conditions relate to the density of occupation and difficulty of evacuation IET Electrical. Equipment necessary for evacuation, like fire alarm call points, is exempt from these enclosure rules.
Generally, live conductors must be enclosed in non-combustible materials to prevent fire risks. Wiring systems, especially in escape routes, need non-combustible fixings to prevent collapse during a fire. Fire safety in buildings requires collaboration, with the electrical designer or installer responsible for complying with BS 7671 and ensuring the safety of escape routes.

Dave

You don’t seem to have grasped the distinction between product standards and installation standards.
https://uk.rs-online.com/web/content/discovery/ideas-and-advice/electrical-wiring-regulations-guide

I simply cannot believe the number of people that are mounting their Victron equipment within and upon plywood sheeting.

I was taught from my childhood that all electrical equipment must be mounted on no flammable surfaces.

Victron in their installation manual warns that the inverter must not be mounted on or near anything that is flammable.

Plywood (marinised or otherwise) is considered highly flammable.

Have you clarified that the Lynx distributor falls within the definition of “consumer units and similar switchgear assemblies” in the regulations / British Standard.

Getting official confirmation , but “if it quacks like a duck . . . . “

Could be a duck hunter..