Eaton 420 EMT Comb - NEC/CEC Certified
Part Number: 420-G1
Quick Summary
Eaton 420 EMT Comb is a reliable EMT to rigid conduit coupling designed for fast electrical installations in industrial enclosures. A common pain point is mismatched fittings and slow assembly that raise labor costs and risk non-compliance with codes. This coupling is designed to meet NEC/CEC standards and carries certification for ordinary/non-hazardous locations, with Canadian UL verification, ensuring cross-border acceptance. The zinc-plated steel construction delivers durability in typical factory environments while keeping a light footprint. As part of the Crouse-Hinds series, this 420 EMT Comb with a set-screw design supports rapid panel builds and simplifies procurement for OEMs and service teams.
Product Information
Extended Description
420-G1 Eaton: Eaton Crouse-Hinds series EMT combination coupling, EMT (set screw) to rigid (set screw), Zinc plated steel, Combination type, 1/2"-1/2"
Product Name
Eaton Crouse-Hinds series EMT combination coupling
Catalog Number
420
UPC
784564104205
Product Length/Depth
2.38 in
Product Height
1 in
Product Width
1 in
Product Weight
0.17 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
EMT
Style
Combination
Combination type
EMT (set screw) to rigid (set screw)
Trade size
1/2"-1/2"
Material
Zinc plated steel
Crouse-Hinds series Combination Couplings - EMT catalog page
Combination Couplings - EMT Canadian certification
Combination Couplings - EMT Canadian certification
Eaton Specification Sheet - 420
Feature: Zinc-plated steel construction resists corrosion and withstands routine wear in non-hazardous environments. Business Impact: This durability translates to longer service life and lower lifecycle costs, reducing the frequency of replacements in multi-year projects. Application: Ideal for control panels, machines, and lighting runs in ordinary locations where rugged reliability matters. Feature: Combination type EMT set screw to rigid set screws provide a secure mechanical grip. Business Impact: Ensures reliable electrical continuity and reduces field adjustments, cutting installation time by simplifying alignment. Application: Commonly used on 1/2" EMT to 1/2" rigid runs in panel installations and process lines. Feature: 1/2 in–1/2 in trade size fits standard conduit counts. Business Impact: Streamlines procurement and spare parts planning, enabling single-sourcing for common installations. Application: Suitable for compact control cabinets and instrument panels. Feature: Lightweight design at 0.17 lb per piece. Business Impact: Easier handling during field and panel mounting reduces installation fatigue and labor costs. Application: Preferred in repetitive installations across manufacturing floors. Feature: NEC/CEC compliance and Ordinary/Non-Hazardous Location rating; UL Canada certification. Business Impact: Ensures regulatory acceptance across US and Canada, simplifying approvals and audits. Application: Cross-border projects and spec compliance in automation systems.
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FAQs
The Eaton 420 EMT Comb provides a secure EMT (set screw) to rigid (set screw) connection for 1/2 in trade size. It is designed to fit standard 1/2 in EMT and 1/2 in rigid conduits, delivering a reliable mechanical and electrical bond. The set-screw design simplifies installation, reduces field adjustments, and supports industry-standard panel and enclosure wiring.
This coupling supports NEC/CEC standards and is rated for Ordinary/Non-Hazardous Locations. It also carries Canadian UL verification, enabling cross-border use in US and Canadian projects. These certifications help streamline approvals, reduce audit risk, and ensure safe operation in typical automation environments.
It is commonly used in control panels, machinery wiring, and lighting runs where 1/2 in EMT to 1/2 in rigid connections are required. Its lightweight zinc-plated steel construction suits non-hazardous shop floors and general manufacturing settings, helping to standardize conduit fittings across panel builds and field installations.
Ensure proper alignment of EMT to rigid sections and tighten the set screws securely with the appropriate tool. The component is zinc-plated for corrosion resistance and weighs 0.17 lb, which eases handling during panel assembly. Confirm the 2.38 in length and 1 in width/height fit within enclosure gaps and mounting points.
The 420 EMT Comb reduces part variety by covering a standard 1/2 in EMT to rigid application, lowering inventory costs. Its durable zinc finish and reliable set-screw design minimize maintenance and rework, accelerating project timelines and reducing downtime in automation installations across the lifecycle of control cabinets and equipment.