Nilight 50452RV 30A Generator Inlet Box, NEMA L5-30P

The Nilight 50452RV generator inlet box is listed as a 30A, 125V NEMA L5-30P unit for connecting a compatible generator cord. Four pre-drilled entry points, a cover-mounted LED indicator and a metal enclosure are intended to simplify installation and outdoor backup-power wiring.

At a glance

Four pre-drilled openings are described for routing wiring from different sides of the box.
The green cover indicator is claimed to illuminate when power is connected correctly.
A flip-style cover with internal weatherproofing foam is described for outdoor placement.
The listing claims ETL testing and compliance with applicable safety standards.

Price

$29.59Save 20%

Reference price: ~~$36.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

Pre-drilled cable-entry openings may reduce the need to make new openings in the enclosure.
The indicator provides a visible status cue, which can be useful in dim conditions.
Metal construction and a powder-coated finish are specified.

Technical specifications

9 specifications

Identity and connection
Brand	Nilight
Model	50452RV
Connector listed in title and product details	NEMA L5-30P
Rated voltage and current	Rated for 30AMP 125V
Advertised maximum load	Rated for 30A 125V, 3750W.

Construction and installation
Material	Metal
Finish	Powder Coated
Installation type	Screw-In
Enclosure entry points	There are 4 pre-drilled holes on the box, no need to drill holes

What to know before buying

Listing details to confirm

The listing is inconsistent about the connector: the title and main details specify three-prong NEMA L5-30P at 125V, while an A+ panel describes four-prong NEMA L14-30P at 125/250V and 7500W. Confirm the selected unit's plug type and rating before matching it to a generator cord or wiring system. The outdoor and ETL statements are listing claims, not independently verified here.

What’s in the box

30 AMP Generator Power Inlet BoxIncluded
3 mounting screwsCheck selected pack
Installation guidanceCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Generator backup wiring that requires a 30A, 125V NEMA L5-30P inlet, once the exact selected configuration is confirmed.
Installers who want pre-drilled cable-entry openings and a visible connection indicator.

Less suited to

Buyers whose setup requires a four-prong NEMA L14-30P, 125/250V inlet unless the selected configuration is confirmed to match.
Anyone seeking a plug-and-play solution without electrical installation.

Nilight 50452RV 30A Generator Inlet Box, NEMA L5-30P · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.8 / 5 · 86 ratings

5 stars87%87%
4 stars8%8%
3 stars4%4%
2 stars0%0%
1 star1%1%

Customer feedback describes the inlet box as working well and easy to install. That feedback may matter to buyers looking for a straightforward installation, but it does not resolve the listing's conflicting L5-30P and L14-30P specifications. Aggregate ratings are generally favorable, with some lower ratings also present, and do not establish why customers rated it that way.

Positive themes

Customers describe the box as working well.
Customers describe installation as easy.

Frequently asked questions

What connector does the Nilight 50452RV use?

The title and main listing details say NEMA L5-30P, but an A+ panel describes NEMA L14-30P. Verify the connector on the selected listing before purchase.

What electrical rating is listed?

The main product details state 30AMP at 125V. An A+ panel separately claims 30A at 125/250V and 7500W for the L14-30P version, so do not assume those specifications apply to the titled configuration.

Does the inlet box have pre-drilled cable entries?

Yes. The listing describes four pre-drilled openings around the enclosure.

What comes with the inlet box?

The explicit included-components field lists the inlet box. A feature description additionally claims three mounting screws and installation guidance, so check the selected listing for those items.