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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Hammond Manufacturing Junction Boxes Type 3R Hinge Cover - 12 x 10 x 6 - Steel/Gray
Datasheet
4May 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
2May Stock
Min.: 1
Mult.: 1

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

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

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

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

CHKO
Hammond Manufacturing Junction Boxes N1 Screw Cover - 10 x 8 x 6 - Steel/Gray
Datasheet
5May 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
2May 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
2May 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
1May Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 18 in 14 in 3 in 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover - 20 x 14 x 3 - Steel/Gray
Datasheet
2May Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 1.667 ft 1.167 ft 1.667 ft 1 CS
Hammond Manufacturing Junction Boxes N1 Screw Cover - 6 x 6 x 6 - Steel/Gray
Datasheet
5May 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
1May 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
1May 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
20Inaasahan 2/16/2026
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
1Inaasahan 2/19/2026
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
32Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
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
77Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
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
23Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
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
81Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
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
66Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Hinge Cover w/KO's - 18 x 12 x 4 - Steel/Gray
Datasheet
101Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
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
189Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 1
Mult.: 1

CHKO
Hammond Manufacturing Junction Boxes N1 Screw Cover - 12 x 12 x 6 - Steel/Gray
Datasheet
2,465Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
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
58Available ang Stock ng Pabrika
Available ang Higit Pang Impormasyon
Min.: 1
Mult.: 1

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