Eaton Crouse-Hinds NJB040704 Junction Box - NEMA 3 4X 12
Part Number: NJB040704
Manufacturer
Eaton Crouse-Hinds
Part number
NJB040704
Quick Summary
NJB junction box is a rugged enclosure designed to protect electrical connections in control panels and outdoor installations. End-user pain points include weathering, moisture ingress, and downtime from nonmetallic enclosures in harsh environments. With NEMA ratings 3, 4X and 12, NEC/CEC compliance, and suitability for ordinary locations, it supports reliable, compliant operation. Krydon fiberglass-reinforced polyester delivers lightweight durability and chemical resistance, reducing maintenance and replacement costs. Its 3-1/4 by 6-3/4 by 3-3/4 inch footprint and 1 inch hub entries on each side simplify panel layouts and wiring.
Product Information
Extended Description
NJB040704 Eaton Crouse-Hinds: Eaton Crouse-Hinds series NJB junction box, 3-1/4 x 6-3/4 x 3-3/4" enclosure size, Basic enclosure, Krydon fiberglass-reinforced polyester, 1" long sides, 1" short sides
Product Name
Eaton Crouse-Hinds series NJB junction box
Catalog Number
NJB040704
UPC
782274131160
Product Length/Depth
3.25 in
Product Height
6.75 in
Product Width
3.75 in
Product Weight
2.07 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
NEMA Rating
3 4X 12
Enclosure type
Basic Enclosure
Enclosure size
3-1/4 x 6-3/4 x 3-3/4"
Hub size - max
1 in long sides, 1 in short sides
Material
Krydon fiberglass-reinforced polyester
Crouse-Hinds series NJB and NC Nonmetallic Junction Boxes and Control Enclosures catalog page
IF 388 - NJB, NCS Krydon Enclosures
Eaton Specification Sheet - NJB040704
Material durability: The Krydon fiberglass-reinforced polyester construction provides UV resistance and chemical resistance, reducing maintenance needs and extending enclosure life in outdoor or harsh indoor environments. Business impact: Lower lifecycle costs and fewer service calls due to corrosion or weathering. Application: Control panels in wash-down zones, chemical processing lines, or outdoor equipment housings benefit from long-term reliability. Size and form factor: The 3-1/4 x 6-3/4 x 3-3/4 inch basic enclosure fits compact control panels and space-constrained installations. Business impact: Saves floor space and simplifies enclosure mounting, reducing installation time and cabling complexity. Application: Small automation interfaces and terminal blocks in confined electrical closets or machine housings. Standards and protection: NEMA ratings 3, 4X, and 12 with NEC/CEC compliance ensure suitability for ordinary locations. Business impact: Guarantees regulatory alignment, asset protection, and insurance compatibility. Application: Non-hazardous environments needing reliable ingress protection and standard compliance. Hub and access: Maximum 1 inch hub entries on both long and short sides support standard wiring assortments and straightforward sealant application. Business impact: Accelerates wiring and reduces leak paths, improving commissioning speed. Application: Entry for power, signal, and control wiring in compact control panels. Weight and handling: Weighing about 2.07 pounds, the enclosure combines toughness with easy handling and reduced shipping costs. Business impact: Lower labor and transport costs during installation and maintenance. Application: Field replacements or retrofits where weight is a factor.
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FAQs
For the NJB040704, plan for up to 1 inch hub entries on each long and short side and ensure mounting on a stable surface. Use appropriate sealants and gaskets to maintain basic weather sealing in ordinary locations. The lightweight Krydon enclosure simplifies on-site handling and reduces installation time without sacrificing protection in dry or mildly damp environments.
Krydon material offers strong UV resistance and chemical compatibility, minimizing surface degradation and maintaining enclosure integrity over time. This translates to fewer repainting cycles, less maintenance downtime, and better protection for sensitive electrical components in outdoor or wash-down areas.
Yes. The enclosure is designed for Ordinary/Non-Hazardous Locations and carries NEMA ratings 3, 4X, and 12, aligning with NEC/CEC standards. It provides dependable protection for nonhazardous control panels and wiring in indoor or sheltered outdoor settings, helping compliance and reducing risk of moisture ingress.
The NJB040704 carries NEMA ratings 3, 4X, and 12 and adheres to NEC/CEC standards. It is intended for ordinary locations, offering nonmetallic construction with Krydon material to meet typical industrial enclosure requirements while delivering reliable ingress protection and regulatory compatibility.
The combination of Krydon material, lightweight design (about 2.07 lb), and corrosion resistance reduces maintenance and replacement costs. Faster installation due to 1 inch hub entries and straightforward mounting translates to lower labor costs. Over the life of the equipment, the enclosure contributes to lower downtime and improved system reliability.