Type 3/12/4 Mild Steel Junction Boxes

Hammond Manufacturing Type 3/12/4 Mild Steel Junction Boxes are designed for use as a wiring box, terminal or pull box, and junction box in indoor and outdoor applications. These steel junction boxes comply with IEC 60529 and IP66 ratings and NEMA Type 3, 4, and 12. The C3SC series junction boxes are UL 508A listed; Type 3, 4, 12 and cULus listed per CSA C22.2 No 94; Type 3, 4, 12. These junction boxes 

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NEMA Rating
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Hammond Manufacturing Junction Boxes N3 SCREW COVER - 16X16X8 - GRA
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 16 in 8 in 16 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 18X18X6 - GRA
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 18 in 6 in 18 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 10X10X6 - GRA
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 10 in 6 in 10 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 12X12X4 - GRA
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 12 in 4 in 12 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 6X6X4 - GRAY
Datasheet
1In Stock
2Expected 2026/07/09
Min.: 1
Mult.: 1

Screw Cover Steel Gray 6 in 4 in 6 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 6X6X6 - GRAY
Datasheet
1In Stock
2Expected 2026/07/09
Min.: 1
Mult.: 1

Screw Cover Steel Gray 6 in 6 in 6 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 12X12X6 - GRA
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 12 in 6 in 12 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 16X12X6 - GRA
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 12 in 6 in 16 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 8X8X4 - GRAY
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 8 in 4 in 8 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 8X8X8 - GRAY
Datasheet
1In Stock
Min.: 1
Mult.: 1

Screw Cover Steel Gray 8 in 8 in 8 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 8X6X4 - GRAY
Datasheet
3Expected 2026/08/06
Min.: 1
Mult.: 1

Screw Cover Steel Gray 6 in 4 in 8 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 24X20X8 - GRA
Datasheet
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Screw Cover Steel Gray 20 in 8 in 24 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 24X24X10 - GR
Datasheet
More Info Available

Screw Cover Steel Gray 24 in 10 in 24 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 24X24X6 - GRA
Datasheet
More Info Available

Screw Cover Steel Gray 24 in 6 in 24 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 24X24X8 - GRA
Datasheet
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Screw Cover Steel Gray 24 in 8 in 24 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 30X30X12 - GR
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Screw Cover Steel Gray 30 in 12 in 30 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 36X36X12 - GR
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Screw Cover Steel Gray 36 in 12 in 36 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 10X10X4 - GRA
Datasheet
18Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 10 in 4 in 10 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 10X8X4 - GRAY
Datasheet
14Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 8 in 4 in 10 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 12X10X6 - GRA
Datasheet
24Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 10 in 6 in 12 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 16X16X6 - GRA
Datasheet
18Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 16 in 6 in 16 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 20X20X8 - GRA
Datasheet
23Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 20 in 8 in 20 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 8X8X6 - GRAY
Datasheet
14Factory Stock Available
More Info Available
Min.: 1
Mult.: 1

Screw Cover Steel Gray 8 in 6 in 8 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 24X24X12 - GR
Datasheet
More Info Available

Screw Cover Steel Gray 24 in 12 in 24 in Screw IP66 3, 4, 12 UL 508A C3SC
Hammond Manufacturing Junction Boxes N3 SCREW COVER - 12X12X8 - GRA
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

Screw Cover Steel Gray 12 in 8 in 12 in Screw IP66 3, 4, 12 UL 508A C3SC