Eaton 657BLACK EMT Connector - Straight, Threadless, Steel
Part Number: 657BLACK
Quick Summary
Eaton 657BLACK EMT Connector securely compresses EMT conduits for fast, reliable field installations. In crowded electrical rooms, misalignment and cross-threading slow projects, and a threadless design helps avoid those issues while reducing tool requirements. It aligns with NEC/CEC standards for ordinary/non-hazardous locations and carries UL Canada certification for compliant regional use. This connector blends rugged steel construction with Crouse-Hinds EMT fittings compatibility, delivering durable performance and predictable maintenance costs across control panels, switchgear, and industrial facilities. For engineers and procurement teams, it offers a trusted, code‑compliant solution that speeds installation without compromising safety or reliability.
Product Information
Extended Description
657BLACK Eaton: Eaton Crouse-Hinds series EMT compression connector, Black, EMT, Straight, Non-insulated, Steel, Threadless, 3"
Product Name
Eaton Crouse-Hinds series EMT compression connector
Catalog Number
657BLACK
UPC
662277090292
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
Black
Thread
Threadless
Material
Steel
Eaton Crouse-Hinds 657BLACK 3D drawing
Crouse-Hinds series Connectors and Couplings - EMT catalog page
Connectors and Couplings - EMT Canadian certification
Connectors and Couplings - EMT Canadian certification
Eaton Specification Sheet - 657BLACK
Feature: Compression straight connector provides a secure, interference-free grip on EMT conductors. Business Impact: Faster, tool‑efficient installation reduces field labor and strengthens conduit integrity. Application: Ideal for straight runs in machine rooms and panel boards where space is at a premium and reliability is critical. Feature: Non-insulated steel construction delivers rugged mechanical strength. Business Impact: Superior impact resistance and long service life in harsh industrial environments, lowering replacement cycles. Application: Exposed conduit installations on factory floors and outdoor-rated enclosures where protection matters. Feature: 3 inch trade size with black finish. Business Impact: Standardized sizing ensures compatibility with common EMT inventories while the color aids visibility and routing in complex systems. Application: New builds or retrofits in warehouses and processing plants. Feature: NEC/CEC compliance with Ordinary/Non-Hazardous location classification. Business Impact: Simplifies engineering approval and reduces regulatory risk, enabling faster project sign‑off. Application: Marine and general manufacturing facilities that require proven code compliance. Feature: Threadless, compression style simplifies alignment and reduces wear on threads. Business Impact: Lower installation time and fewer cross-threading errors, improving field productivity. Application: High‑volume electrical installations in automation lines and distribution panels.
Get a Quick Quote for a Eaton 657BLACK
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 657BLACK?
Enquire Now
FAQs
The 657BLACK is designed for EMT conduit and uses a compression, straight design that secures a reliable connection without threading. It fits standard EMT runs and pairs with other Eaton Crouse-Hinds EMT fittings, simplifying stocking and on-site installation while ensuring a tight, code-compliant joint.
This connector adheres to NEC/CEC standards for Ordinary/Non-Hazardous locations and carries UL Canada certification, confirming compliance for cross‑border installations. The non-insulated steel design meets mechanical robustness requirements for industrial environments and supports durable, long‑lasting service life.
The product is classified for Ordinary/Non-Hazardous locations, which means it is not intended for hazardous or outdoor environments unless additional enclosure or protection is specified. For outdoor or high‑corrosion settings, consider suitable enclosures or coated fittings and follow relevant electrical codes.
Threadless connectors eliminate threading, reducing misalignment risks and cross‑thread damage during assembly. This speeds up installation, lowers tool wear, and improves first‑pass correctness on crowded or complex EMT runs, which is especially valuable in high‑volume manufacturing environments.
Durable steel construction paired with NEC/CEC compliance minimizes maintenance cycles and regulatory risk, while the compression mechanism provides secure, inspectable joints. This translates to lower rework, faster panel upgrades, and predictable lifecycle costs in automation, control rooms, and distribution panels.