Eaton FD42378-12 Wall Mounted Disconnect Enclosure - NEMA 12
Part Number: FD42378-12
Quick Summary
FD42378-12 is a wall-mounted disconnect enclosure by Eaton, designed to protect electrical disconnects in industrial control panels. A common pain point is balancing quick service access with robust protection in dusty, busy environments. UL 508A, CSA C22.2 and NEMA ratings confirm its electrical safety, with robust corrosion resistance and dependable gasketing. For installers, this translates to faster, compliant mounting on walls with external feet and seamless gasket alignment, while operators gain safer access. Built with carbon steel, B-Line series design is suitable for wall-mount installations in manufacturing environments. Its 14 gauge wall thickness and 42x37 in footprint provide sturdy, long-term protection in plant floors. Seamless poured in-place gasket helps keep dust and moisture out.
Product Information
Extended Description
FD42378-12 Eaton: Eaton B-Line series wall mounted disconnect enclosure, 42" height, 8" length, 37" width, NEMA 12, Hinged cover, FD12 enclosure, Wall mount, Medium single door, External mounting feet, Carbon steel, Seamless poured in-place gasket
Product Name
Eaton B-Line series wall mounted disconnect enclosure
Catalog Number
FD42378-12
UPC
782051406627
Product Length/Depth
8 in
Product Height
42 in
Product Width
37 in
Product Weight
109.1 lb
Certifications
UL 508A CSA C22.2. NEMA
Material
Carbon steel
Wall thickness
14 gauge
Finish color
Painted
Color
ANSI 61 gray
Style
Medium single door
Model
FD12 enclosure
Cover type
Hinged
Mounting method
Wall
Mounting hole details
External mounting feet
Closure type
Hinged
Special features
Removable cover,recessed pullring,handle provision
NEMA Rating
12
Country of origin
US
Feature: NEMA 12-rated enclosure constructed from carbon steel with a 14 gauge wall provides rugged protection in harsh plant environments. Business impact: This level of protection reduces dust ingress and moisture exposure, extending component life and lowering maintenance costs. Application: Use in factory floors and control panels where reliable protection and long service intervals matter. Feature: Generous interior footprint at 42 in height by 37 in width, with 8 in depth, supports multiple disconnect assemblies and wiring runs. Business impact: Easier cabling and service access translates to shorter installation times and faster changeouts. Application: Suitable for medium single-door configurations in industrial automation cabinets. Feature: Hinged cover with external mounting feet and removable cover plus recessed pull ring and handle provision. Business impact: Fast, tool-free access for maintenance; safer operation; reduces downtime. Application: Field retrofit and routine servicing of disconnect assemblies. Feature: Seamless poured-in-place gasket and ANSI 61 gray painted finish. Business impact: Enhanced ingress protection and durable appearance reduce corrosion risk and simplify regulatory compliance. Application: Indoor installations in dusty or dirty environments. Feature: Compliance with UL 508A, CSA C22.2, and NEMA Rating 12 ensures regulatory alignment. Business impact: Simplifies procurement audits and keeps projects on schedule. Application: Industrial electrical protection equipment in manufacturing and processing facilities.
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FAQs
Install on a solid wall using the external mounting feet, with proper clearances for door swing and service access. Ensure indoor placement in a controlled environment, and use compatible mounting hardware and gaskets to maintain NEMA 12 protection and gasket integrity during servicing.
The enclosure measures 42 in high, 37 in wide, and 8 in deep, weighs approximately 109.1 lb, and is made from 14 gauge carbon steel with a painted ANSI 61 gray finish. It features a hinged cover, external mounting feet, and a recess pull-ring for safe service access, with NEMA 12 protection.
Yes. The FD42378-12 carries UL 508A and CSA C22.2 certifications, aligning with safety and performance requirements for industrial control equipment, and it is rated NEMA 12 for indoor dust and moisture control in harsh environments.
No. The NEMA 12 rating is intended for indoor use in dusty or mildly dirty environments. For outdoor or weather-exposed applications, select a enclosure with appropriate IP/NEMA ratings and weather sealing beyond NEMA 12.
It reduces downtime through quick, tool-free maintenance with a hinged cover and recessed pull ring, ensures regulatory compliance via UL/CSA,NEMA alignment, and protects critical disconnects from dust and moisture with a seamless gasket—leading to longer service intervals and lower total cost of ownership.