Commercial Electrical Enclosures with Knockouts

Hammond Manufacturing Commercial Electrical Enclosures with Knockouts are ideal for commercial building construction and light industrial needs. These UL-listed enclosures are available in several NEMA ratings, including Type 1 and Type 3R. The Type 1 enclosures are suitable for use as a junction, pull, or switch box in general-purpose indoor commercial applications, while the Type 3R junction boxes provide protection against rain, sleet, snow, and dripping water. Hammond Manufacturing Commercial Electrical Enclosures feature knockouts on the bottom of the enclosure or on all four sides for design flexibility.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Type
Material
Color
Length
Width
Height
IP Rating
NEMA Rating
Series
Hammond Manufacturing Junction Boxes Type 3R Screw Cover - 10 x 8 x 4 - Steel/Gray
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Galvanized Steel Gray 4 in 8 in 10 in IP24 3R C3RSC
Hammond Manufacturing Junction Boxes Type 3R Hinge Cover - 12 x 10 x 6 - Steel/Gray
Datasheet
4In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 10 in 12 in IP24 3R C3RHCRSM
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 10 x 10 x 6 - Steel/Gray
Datasheet
2In Stock
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 12 x 10 x 4 - Steel/Gray
Datasheet
1In Stock
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 12 x 12 x 6 - Steel/Gray
Datasheet
1In Stock
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 6 x 6 x 4 - Steel/Gray
Datasheet
1In Stock
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 8 x 6 x 4 - Steel/Gray
Datasheet
1In Stock
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Screw Cover - 10 x 8 x 6 - Steel/Gray
Datasheet
5In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 6 in 8 in 10 in IP20 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover - 16 x 14 x 3 - Steel/Gray
Datasheet
2In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 1.167 ft 1.333 ft IP20 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover - 18 x 12 x 4 - Steel/Gray
Datasheet
2In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 1.5 ft 12 in 4 in 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover - 18 x 14 x 3 - Steel/Gray
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 18 in 14 in 3 in 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover - 6 x 6 x 6 - Steel/Gray
Datasheet
5In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 6 in 6 in 6 in 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover - 8 x 6 x 4 - Steel/Gray
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 4 in 6 in 8 in IP20 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover w/KO's - 12 x 12 x 6 - Galv
Datasheet
1In Stock
Min.: 1
Mult.: 1

12 in 12 in CSKOG
Hammond Manufacturing Junction Boxes Type 3R Hinge Cover - 12 x 12 x 10 - Steel/Gray
Datasheet
20Expected 2026-02-16
Min.: 1
Mult.: 1

Screw Cover Steel Gray 12 in 12 in IP24 3R C3RHCRSM
Hammond Manufacturing Junction Boxes N1 Screw Cover w/KO's - 10 x 10 x 4 - Galv
Datasheet
1Expected 2026-02-19
Min.: 1
Mult.: 1

10 in 10 in CSKOG
Hammond Manufacturing Junction Boxes Type 3R Screw Cover - 10 x 10 x 6 - Steel/Gray
Datasheet
32Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Galvanized Steel Gray 10 in 10 in 10 in 3R C3RSC
Hammond Manufacturing Junction Boxes Type 3R Screw Cover - 12 x 8 x 6 - Steel/Gray
Datasheet
77Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Galvanized Steel Gray 12 in 8 in 12 in 3R C3RSC
Hammond Manufacturing Junction Boxes Type 3R Screw Cover - 18 x 12 x 8 - Steel/Gray
Datasheet
23Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 1.5 ft 12 in 1.5 ft 3R C3RSC
Hammond Manufacturing Junction Boxes Type 3R Screw Cover - 18 x 18 x 4 - Steel/Gray
Datasheet
81Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Galvanized Steel Gray 1.5 ft 1.5 ft 1.5 ft 3R C3RSC
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 12 x 8 x 4 - Steel/Gray
Datasheet
66Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 18 x 12 x 4 - Steel/Gray
Datasheet
101Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Steel Gray 1.5 ft 12 in 1.5 ft IP30 1 CHKO
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 6 x 6 x 3.5 - Steel/Gray
Datasheet
189Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Screw Cover - 12 x 12 x 6 - Steel/Gray
Datasheet
2,465Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 6 in 12 in 12 in IP20 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover - 12 x 8 x 4 - Steel/Gray
Datasheet
58Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 4 in 8 in 12 in IP20 1 CS