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Gray painted steel electrical enclosure with screw-on cover, 7.79 in high, 7.53 in deep, 4.87 in wide, 18 ga, series 9991

SQUARE D

SQUARE D 9991UE7 Electrical Enclosure 7.79 in H 7.53 in D 4.87 in W 18 ga Steel Gray

SKU CH-X1BH-4TQ7P

Surface-mount steel enclosure, 7.79 in high by 4.87 in wide, NEMA 1 rated with screw-on solid cover

  • TypeElectrical Enclosures, Wireways & Covers
  • NEMA 1 rating protects indoor components
  • 18-gauge steel resists impact and corrosion
  • 79 in height fits tight wall spaces
  • 87 in width suits compact junction needs
  • Screw-latch cover secures wiring without tools

Compact Steel Enclosure for Indoor Wiring

The SQUARE D 9991UE7 is a painted steel enclosure rated NEMA 1 for indoor use. It protects electrical connections in dry environments where dust or water ingress is not a concern. The screw-on solid cover uses captive screws to prevent lost hardware during maintenance.

NEMA 1 Limits Indoor Protection Only

The NEMA 1 rating means this enclosure is not sealed against water, oil, or fine dust. It must not be installed outdoors, in wash-down areas, or where condensation forms. The screw closure provides basic security but does not create a gasketed seal for harsh conditions.

7.79 in Height Fits Small Component Counts

Internal space of 7.79 in height, 4.87 in width, and 7.53 in depth accommodates a few terminal blocks, relays, or a small DIN-rail assembly. The 18 ga steel walls resist casual impact but lack an interior panel, so all devices mount directly to the back wall. Larger contactors or multi-pole breakers will exceed the available volume.

Highlights

  • NEMA 1 rating protects indoor components
  • 18-gauge steel resists impact and corrosion
  • 79 in height fits tight wall spaces
  • 87 in width suits compact junction needs
  • Screw-latch cover secures wiring without tools

Specifications

BrandSQUARE D
TypeElectrical Enclosures, Wireways & Covers

Questions about this item

Should I choose the 7.79 in height or the 4.87 in width version?

The enclosure is a single model with fixed dimensions of 7.79 in height, 7.53 in depth and 4.87 in width; there are no alternative versions to select.

What does the NEMA 1 rating mean once the enclosure is installed?

NEMA 1 provides indoor protection against incidental contact with live parts and falling dirt, but it is not rated for water, oil or corrosive agents.

What standard governs the screw-on cover and what does it limit in practice?

The screw-on cover follows the NEMA 1 standard, which limits the enclosure to indoor use where only basic contact and dust protection are required.

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