Eaton Crouse-Hinds NJB040703 Junction Box - NEMA 3 4X 12

Part Number: NJB040703
Manufacturer
Eaton Crouse-Hinds
Part number
NJB040703

Quick Summary

Eaton Crouse-Hinds NJB040703 Junction Box is a rugged nonmetallic enclosure designed to protect electrical terminations in industrial environments. When field conditions demand reliable sealing and easy access to wiring, installers grapple with moisture ingress, corrosion, and wiring congestion; this Krydon enclosure helps reduce risk and simplify maintenance. It carries NEMA ratings 3, 4X and 12 under NEC/CEC standards for Ordinary/Non-Hazardous Locations, ensuring safe operation across indoor and outdoor applications. The lightweight design streamlines installation while delivering long-term durability in demanding plants and outdoor cabinets. With standard 3/4 in hub compatibility and a compact footprint, it supports scalable panel builds and predictable lifecycle costs for maintenance teams and procurement alike.

Product Information

Extended Description

NJB040703 Eaton Crouse-Hinds: Eaton Crouse-Hinds series NJB junction box, 3-1/4 x 6-3/4 x 2-3/4" enclosure size, Basic enclosure, Krydon fiberglass-reinforced polyester, 3/4" long sides, 3/4" short sides
Product Name
Eaton Crouse-Hinds series NJB junction box
Catalog Number
NJB040703
UPC
782274098616
Product Length/Depth
3.25 in
Product Height
6.75 in
Product Width
2.75 in
Product Weight
1.9 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 2-3/4"
Hub size - max
3/4 in long sides, 3/4 in short sides
Material
Krydon fiberglass-reinforced polyester
Feature: Krydon fiberglass-reinforced polyester construction provides high chemical resistance and weather durability. Business Impact: Extends service life in outdoor and harsh indoor environments, reducing replacement cycles and maintenance costs. Application: Suitable for outdoor control panels, pump houses, and wash-down areas where exposure to moisture and chemicals is routine. Feature: NEMA Rating 3, 4X and 12 certification delivers comprehensive protection. Business Impact: Compliance with industry standards minimizes risk of equipment downtime and supports safe, code-compliant installations. Application: Ideal for industrial facilities, food and beverage plants, and outdoor conveyors where nonmetallic enclosures are preferred. Feature: Enclosure is classified for Ordinary/Non-Hazardous Locations. Business Impact: Lower total cost of ownership due to reduced licensing and simpler procurement in non-hazardous zones. Application: IT jacks, control panels, and field-wabricated junctions in general plant areas. Feature: Basic enclosure type with 3/4 in hub capacity on both long and short sides. Business Impact: Simplifies wiring and conduit planning, enabling faster field terminations. Application: Field wiring jobs and panel installations where flexible conduit routing is required. Feature: Dimensions 3-1/4 x 6-3/4 x 2-3/4 in with a weight of 1.9 lb. Business Impact: Compact, lightweight form factor reduces handling risk and allows easy mounting in tight spaces. Application: Control panels and equipment closets with limited depth and height constraints. Feature: Krydon material supports compatibility with standard fittings and accessories. Business Impact: Reduces need for specialized components, improving install time and ensuring reliable seals with conventional hardware. Application: Retrofit projects and new installations in plant environments where standard fittings are used.

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FAQs

NJB040703 measures 3.25 in deep, 6.75 in high, and 2.75 in wide, with a weight of 1.9 lb. It uses Krydon fiberglass-reinforced polyester for durability and supports 3/4 in hub entries on both long and short sides, aligning with typical conduit fittings for seamless field wiring.
Yes. The enclosure is rated for Ordinary/Non-Hazardous Locations and complies with NEC/CEC standards, providing reliable protection for electrical terminations in standard industrial environments without requiring hazardous-location certifications.
The NJB040703 features NEMA ratings 3, 4X and 12, indicating suitable protection against dust, water ingress, and corrosion. It is designed for ordinary locations under NEC/CEC compliance, making it a dependable choice for general-purpose control panels and field installations.
Common applications include field wiring, industrial control panels, and outdoor or damp environments in manufacturing facilities. The nonmetallic Krydon enclosure is ideal where lightweight handling, corrosion resistance, and ease of installation are priorities for rapid deployment and maintenance.
Plan for 3/4 in hub entries on both long and short sides, ensure compatibility with standard fittings, and verify space constraints given its 3-1/4 x 6-3/4 x 2-3/4 in footprint. The enclosure’s fiberglass-reinforced polyester resists chemicals and UV exposure, supporting longer service life with minimal maintenance.