Eaton 657YELLOW EMT Compression Connector - NEC/CEC
Part Number: 657YELLOW
Quick Summary
Eaton Crouse-Hinds EMT compression connector is a reliable solution for secure EMT terminations in control panels and field installations. Installers often struggle with loose fittings and misalignment in tight spaces, leading to rework and downtime. This yellow, non-insulated steel connector is designed to resist corrosion and maintain a tight seal in ordinary/non-hazardous locations, backed by NEC/CEC compliance and UL certification. By choosing a standardized 3 inch trade size and a threadless design, teams achieve faster assembly, consistent performance, and lower lifecycle costs. With Eaton’s Crouse-Hinds lineage, you also gain compatibility with a wide range of EMT fittings and documented support resources.
Product Information
Extended Description
657YELLOW Eaton: Eaton Crouse-Hinds series EMT compression connector, Yellow, EMT, Straight, Non-insulated, Steel, Threadless, 3"
Product Name
Eaton Crouse-Hinds series EMT compression connector
Catalog Number
657YELLOW
UPC
662277091077
Product Length/Depth
3.48 in
Product Height
4.47 in
Product Width
4.47 in
Product Weight
2.8 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
EMT
Connector type
Straight
Style
Compression
Insulator
Non-insulated
Trade size
3"
Color
Yellow
Thread
Threadless
Material
Steel
Eaton Crouse-Hinds 657YELLOW 3D drawing
Crouse-Hinds series Connectors and Couplings - EMT catalog page
Connectors and Couplings - EMT UL certification
Connectors and Couplings - EMT UL certification
Eaton Specification Sheet - 657YELLOW
Feature: 3 inch trade size, straight compression connector for EMT conduit → Business Impact: delivers a secure, vibration-resistant termination that reduces rework and service calls. Application: ideal for control panels, machine rooms, and field installations on standard EMT runs. Feature: Threadless, non-insulated steel body simplifies alignment and reduces snag risk during installation → Business Impact: speeds up field terminations and lowers damage to insulation or conductors. Application: suitable for tight spaces and rapid retrofit campaigns in industrial facilities. Feature: Yellow color and visually distinctive finish → Business Impact: improves identification in crowded panels and during maintenance, reducing mis-termination. Application: helpful in high-visibility installations such as panels near equipment with electric hazards. Feature: NEC/CEC compliance and UL certification for EMT fittings → Business Impact: ensures code compliance and safety across US/Canada, lowering audit risk. Application: use in ordinary/non-hazardous locations per NEC/CEC; supports compliant installations. Feature: Dimensions 3.48 in length, 4.47 in width and height, weight 2.8 lb → Business Impact: predictable footprint simplifies cabinet design and component labeling; Application: terminal blocks, panel boards, and crowded enclosures. Feature: Compatible with standard EMT conduit and Crouse-Hinds series connectors → Business Impact: reduces stocking of specialty parts and ensures interchangeability. Application: modular installations and retrofit projects across manufacturing lines.
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FAQs
To install the 657YELLOW, align the EMT conduit with the connector, insert fully, and compress using a standard EMT compression tool until the fitting seats securely. Verify there is no gap and that the connection resists movement under typical vibration. This threadless design simplifies alignment and reduces installation time in control panels and field enclosures.
Key specifications include catalog number 657YELLOW, color Yellow, trade size 3 inches, conduit type EMT, connector type Straight, style Compression, insulator Non-insulated, material Steel, length 3.48 in, width 4.47 in, height 4.47 in, weight 2.8 lb, UPC 662277091077, and NEC/CEC compliance with UL certification for EMT fittings.
Yes. The 657YELLOW is designed for NEC/CEC compliance and is rated for Ordinary/Non-Hazardous Locations. It is UL certified for EMT fittings in the US and Canada, helping to reduce audit risk and ensure safe, code-compliant terminations in commercial and industrial environments.
The connector measures 3.48 inches in length and 4.47 inches in both width and height, with a weight of 2.8 pounds. This compact yet sturdy footprint supports predictable cabinet design and clear labeling in panel and equipment installations.
Ideal for control panels, machine enclosures, and field installs on EMT runs, the 657YELLOW delivers rapid, secure terminations with code compliance. Benefits include reduced installation time, fewer rework events, improved visibility in crowded panels due to its yellow color, and long-term durability that lowers maintenance costs.