NLS | 4 Pole RCD/MCB Enclosure Cover IP66 | Clear Lockable Lid
Cover only – no base included.
The NLS 30891 is a 4 pole RCD/MCB enclosure cover with a clear front lid, rated IP66 for dust and high pressure water. The 30891 is supplied as a cover only, with no enclosure base included, and fits compatible 4 pole industrial enclosure bases. The sealed, lockable design keeps the circuit protection inside visible without opening the enclosure.
Outdoor switchboard enclosures take a beating. UV degradation, impact damage and repeated opening crack the lid or flatten the gasket long before the circuit protection behind it fails. Replacing an entire enclosure over one damaged lid consumes unnecessary parts and installation labour. A cover only replacement restores the IP66 ingress rating without removing the base from the wall or re-terminating any circuit.
The clear front lid lets an electrician identify breaker positions and a tripped RCD from outside the enclosure, reducing how often the board opens on an exposed installation. The lockable lid restricts access to circuit protection on tenanted and multi trade sites while keeping every device visible for inspection. Carrying a spare four pole cover converts a cracked lid into an immediate replacement instead of a return visit.
Features
- 4 pole cover — the 30891 covers a four module opening and fits compatible RCD and MCB enclosure bases of the same size.
- Clear front lid — transparent panel lets you read breaker labels and check switch positions without breaking the seal.
- IP66 rating — dust tight and rated against high pressure water jets, so the cover suits outdoor and washdown locations.
- Sealed design — the lid closes onto the enclosure to maintain the ingress rating once the cover is fitted correctly.
- Lockable lid — restricts access to circuit protection on tenanted, public and multi trade sites.
- Cover only supply — the NLS 30891 ships without an enclosure base, so it is a replacement or build up part rather than a complete board.
- White and clear finish — white surround with a clear viewing panel, matching standard industrial enclosure bodies.
- Replacement part — swaps onto an existing base so a damaged lid does not force a full enclosure change out.
- Light on the truck — packaged weight of 0.260kg makes the 30891 easy to carry as a spare on service vehicles.
- Industrial grade housing — designed for switchboard, plant room and exposed site work rather than decorative indoor use.
- Warranty backed — covered by a one year domestic and one year commercial warranty from the invoice date.
Where to use
- Switchboard maintenance — replacing cracked, faded or damaged covers on existing four pole enclosures during routine service work.
- Outdoor enclosures — pool plant, pump sheds and external walls where the board sits exposed to rain and sun.
- Industrial installations — factory and workshop sub boards that need a sealed cover over circuit protection.
- Washdown areas — food processing and wash bays where the IP66 rating of the 30891 handles direct hosing.
- Rural and shed boards — sheds, pump houses and machinery sheds where dust ingress shortens the life of an unsealed cover.
- Tenanted and public sites — the lockable lid keeps circuit protection out of reach in rental properties and common areas.
- Construction site boards — temporary supply enclosures that need a visible, sealed cover through the build.
- Coastal installations — exposed sites where a failed seal lets salt laden air reach the devices behind the lid.
The NLS 30891 is a cover only and does not include an enclosure base, DIN rail or circuit protection devices. It is not a complete switchboard and cannot be installed on its own. The IP66 rating applies to a correctly assembled enclosure, so the cover is not rated for submersion and must not be used with a damaged or mismatched base.
