Eaton NJB041103 Junction Box - NEMA 3 4X 12 Enclosure
Part Number: NJB041103
Manufacturer
Eaton Crouse-Hinds
Part number
NJB041103
Quick Summary
NJB041103 junction box is a rugged, nonmetallic enclosure designed for electrical junctions in industrial control panels and harsh environments. The primary pain point it addresses is protecting wiring from moisture, dust, and impact while keeping installation straightforward and code-compliant. Constructed from Krydon fiberglass-reinforced polyester and rated for ordinary/non-hazardous locations, it carries NEMA ratings of 3, 4X, and 12 with NEC/CEC compliance to support safe, long-lasting deployments. For project efficiency and lower maintenance, the box’s compact size, 3/4 inch hub options, and lightweight construction translate into faster installations and easier field servicing. Taken together, this enclosure supports scalable, cost-effective protection for control circuitry in modern industrial facilities.
Product Information
Extended Description
NJB041103 Eaton Crouse-Hinds: Eaton Crouse-Hinds series NJB junction box, 3-1/4 x 11 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
NJB041103
UPC
782274088037
Product Length/Depth
3.25 in
Product Height
11 in
Product Width
2.75 in
Product Weight
2.45 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 11 x 2-3/4"
Hub size - max
3/4 in long sides, 3/4 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 - NJB041103
Feature Krydon fiberglass-reinforced polyester construction → Business Impact Excellent chemical resistance, high impact strength, and UV stability reduce replacement costs in harsh environments → Application Outdoor equipment, manufacturing lines, and facility infrastructure. Feature Enclosure size 3-1/4 x 11 x 2-3/4 inches with 3/4 inch hub options on long and short sides → Business Impact Flexible conduit routing with minimal fitment complexity; lowers need for adapters and supports standard 3/4" conduits → Application Control panels and field installations. Feature NEMA ratings 3, 4X, 12 and NEC/CEC compliance → Business Impact Proven protection against weather, dust, and corrosion; accelerates procurement and ensures regulatory alignment → Application Indoor/outdoor non-hazardous installations. Feature Lightweight at 2.45 lb and a basic enclosure design → Business Impact Easier handling, faster mounting, and reduced labor hours during installation and service → Application Quick turn-ups in tight spaces and portable setups. Feature Documentation availability including IF 388 installation sheet and catalog/spec sheets → Business Impact Streamlined commissioning, fewer wiring errors, and improved installer confidence → Application Engineering, procurement, and maintenance teams.
Get a Quick Quote for a Eaton Crouse-Hinds NJB041103
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton Crouse-Hinds NJB041103?
Enquire Now
FAQs
The NJB041103 supports up to 3/4 inch hubs on both the long and short sides, enabling straightforward conduit connections with standard 3/4 in fittings. This reduces the need for adapters and simplifies field wiring during panel installation and maintenance.
Yes. The enclosure complies with NEC/CEC standards and is rated for Ordinary/Non-Hazardous Locations. It is suitable for indoor and outdoor non-hazardous applications, including industrial control panels and equipment housings in harsh environments.
The box is made of Krydon fiberglass-reinforced polyester, delivering excellent chemical resistance, impact strength, and UV stability. These properties reduce maintenance costs and extend service life in demanding industrial settings.
Plan for the 3-1/4 x 11 x 2-3/4 inch footprint, use up to 3/4 inch conduits, and consider the lightweight 2.45 lb construction for easier mounting. Refer to IF 388 and the specified installation sheet for step-by-step guidance to ensure optimal gasket seating and NEMA protection.
The combination of durable Krydon material, proven NEMA protection (3, 4X, 12), and lightweight installation reduces downtime, extends component life, and lowers labor costs during installation and service, delivering lower total cost of ownership over the project life.