Eaton 657RT Raintight Conn - EMT 3in, NEC/CEC Certified
Part Number: 657RT
Quick Summary
The Eaton 657RT raintight Conn is designed to seal EMT installations in outdoor or washdown environments. For engineers and procurement teams, moisture intrusion and corrosion risk can trigger downtime, costly repairs, and noncompliance if fittings fail during adverse conditions. It meets NEC/CEC standards and is rated for Ordinary/Non-Hazardous Locations, with raintight performance and a robust steel construction. With a threadless steel design for a 3-inch trade size, it speeds field installs on EMT conduit and lowers maintenance costs. This combination supports faster installation throughput in contractor projects and aligns with electrical safety practices in industrial facilities. In retrofit scenarios and new builds, the 657RT delivers reliable, code-compliant connections without sacrificing durability or ease of service.
Product Information
Extended Description
657RT Eaton: Eaton Crouse-Hinds series raintight compression connector, EMT, Straight, Non-insulated, Steel, Threadless, 3"
Product Name
Eaton Crouse-Hinds series raintight compression connector
Catalog Number
657RT
UPC
784564004437
Product Length/Depth
5.58 in
Product Height
4.14 in
Product Width
5.4 in
Product Weight
2.34 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
EMT
Style
Compression
Connector type
Straight
Insulator
Non-insulated
Trade size
3"
Thread
Threadless
Material
Steel
Special features
Raintight
Crouse-Hinds series Raintight Connectors and Couplings - EMT catalog page
Raintight Connectors and Couplings - EMT Canadian certification
Raintight Connectors and Couplings - EMT Canadian certification
Eaton Specification Sheet - 657RT
Feature: Raintight design seals out moisture and contaminants. Business Impact: Reduces corrosion, moisture-related failures, and downtime, protecting equipment and extending service life. Application: Outdoor and washdown areas in manufacturing, food & beverage, and facilities with high humidity. Feature: Threadless, compression connection. Business Impact: Simplifies installation, minimizes thread damage risk, and speeds mounting, cutting labor costs. Application: Tight or confined EMT runs where access is limited. Feature: Steel, non-insulated construction. Business Impact: Provides rugged, durable housing for tough environments while minimizing unnecessary insulation work. Application: Exposed conduit in industrial plants and outdoor installations. Feature: 3 inch trade size. Business Impact: Supports larger conduit needs with a single compression fitting, reducing parts variety. Application: Mid to large-diameter EMT runs in service entrances and distribution lines. Feature: NEC/CEC compliance and Ordinary/Non-Hazardous Location rating. Business Impact: Ensures code alignment and safer installations with fewer rejection risks in the field. Application: Commercial, light-industrial facilities and operations requiring strict standards. Feature: Straight connector form. Business Impact: Predictable alignment simplifies splicing and reduces installation rework. Application: Horizontal EMT runs and clean, direct conduit terminations.
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FAQs
To install the 657RT, prepare the EMT run, insert the conduit into the straight, compression-style connector, tighten the compression mechanism until snug, and verify a secure seal. The threadless design speeds assembly and reduces risk of cross-thread damage. Use approved torque as per Eaton specs and ensure proper seating for raintight performance.
Key specs include conduit type EMT, style Compression, connector type Straight, insulator Non-insulated, material Steel, trade size 3", threadless connection, product length 5.58 in, height 4.14 in, width 5.4 in, and weight 2.34 lb. UPC for reference is 784564004437, and it is designed for Ordinary/Non-Hazardous Locations under NEC/CEC.
Yes. The 657RT is rated for Ordinary/Non-Hazardous Locations and adheres to NEC/CEC standards. It provides raintight performance suitable for environments where moisture exposure is a concern, such as outdoor equipment pads and washdown areas, helping ensure safety and code compliance.
The 657RT complies with NEC/CEC standards and is specified for ordinary/non-hazardous locations. It is part of Eaton’s raintight series for EMT, and the product family includes catalog pages and certification documentation for compliance verification.
The raintight, threadless compression design minimizes installation time and reduces field rework, lowering labor costs. Its steel construction resists corrosion in exposed areas, improving reliability and reducing maintenance intervals. For upgrades and new builds, the 657RT offers a durable, code-compliant solution that extends service life in demanding environments.