Crouse-Hinds EMT Compression C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.18
Eaton Crouse-Hinds EMT Compression Couplings - Threadless Series

Crouse-Hinds EMT Compression Coupling - Zinc Plated Steel Threadless Connection System

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Model: 661SRED
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.18
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Crouse-Hinds EMT Compression Coupling - Zinc Plated Steel Threadless Connection System

Professional threadless compression coupling for reliable EMT conduit connections

The Crouse-Hinds EMT Compression Coupling delivers professional-grade threadless connection performance for electrical metallic tubing installations. Engineered with zinc plated steel construction, this compression-style coupling provides secure, reliable connections in ordinary and non-hazardous locations while meeting NEC/CEC standards for professional electrical applications.

Professional Features & Benefits

  • Compression Design: Threadless compression mechanism ensures quick, secure installation without threading requirements, reducing installation time and labor costs.
  • Zinc Plated Steel Construction: Durable zinc plated steel material provides excellent corrosion resistance and long-term reliability in demanding electrical environments.
  • EMT Compatibility: Specifically engineered for electrical metallic tubing applications, ensuring proper fit and optimal electrical continuity.
  • NEC/CEC Compliance: Meets National Electrical Code and Canadian Electrical Code standards, ensuring code-compliant installations and professional acceptance.
  • Ordinary Location Rating: Approved for use in ordinary and non-hazardous locations, providing versatile application flexibility for standard electrical installations.
  • Red Color Coding: Distinctive red finish aids in system identification and provides professional appearance in visible installations.

Technical Specifications

  • Area Classification: Ordinary/Non-Hazardous Locations
  • Conduit Type: EMT
  • Product Color: Red
  • Product Material: Zinc plated steel
  • Product Style: Compression
  • Standards Type: NEC/CEC

Professional Applications

  • Commercial Building Electrical Systems
  • Industrial Facility Conduit Installations
  • Residential Electrical Panel Connections
  • Office Building Infrastructure
  • Retail Establishment Wiring
  • Educational Facility Electrical Systems
  • Healthcare Facility Conduit Networks

Why Choose Crouse-Hinds Quality?

Crouse-Hinds compression couplings deliver proven reliability through zinc plated steel construction and NEC/CEC compliance. The threadless compression design ensures professional installation efficiency while maintaining long-term electrical system integrity in ordinary location applications.

Manufacturer Resources

Product Specs

Area Classification:
Ordinary/Non-Hazardous Locations
Conduit Type:
EMT
Product Color:
Red
Product Material:
Zinc plated steel
Product Style:
Compression
Standards Type:
NEC/CEC
Department:
Electrical
Product Type:
Conduit Coupling
Product Subgroup:
Conduit Fittings
Product Group:
Conduit & Raceway

Crouse-Hinds 661SRED – Frequently Asked Questions

1) What trade sizes do Crouse-Hinds EMT compression couplings come in?
The Crouse-Hinds threadless EMT compression couplings run the full commercial range: 1/2 inch (660S), 3/4 inch (661S), 1 inch (662), 1-1/4 inch (663), 1-1/2 inch (664), 2 inch (665), 2-1/2 inch (666), 3 inch (667), 3-1/2 inch (668) and 4 inch (669). One size is a coupling for that trade size of EMT only, so order per run size, not per box. If you are stocking a truck for tenant fit-out work, 1/2 and 3/4 inch cover most branch circuit runs and the larger sizes cover feeder and riser conduit.
2) Will a compression coupling work on rigid or IMC conduit, or is it EMT only?
EMT only. These Crouse-Hinds couplings are built for electrical metallic tubing, and the compression ring grips the smooth outside wall of EMT. Rigid and IMC are threaded conduit with a heavier wall and a different outside diameter, so they take a threaded coupling instead. If your run is EMT into a rigid stub, you need a transition fitting, not this coupling.
3) Should I use compression or set screw EMT couplings?
Compression is the one to use where the conduit could see damp conditions or physical knocks: the gland nut squeezes a ring around the tubing for a tight mechanical and electrical joint. Set screw couplings are faster and cheaper and are the usual choice for dry indoor runs above ceilings. These Crouse-Hinds fittings are the compression style in zinc plated steel, so they suit exposed commercial and industrial runs where a set screw fitting would not be accepted on the inspection.
4) Can I use these Crouse-Hinds couplings in a hazardous or classified area?
No. These compression couplings are rated for ordinary and non-hazardous locations. A Class I or Class II classified area, a spray booth, a fuel room or a grain handling space needs explosionproof threaded rigid conduit and fittings listed for that class and division. Do not substitute an EMT compression coupling into a classified run.
5) Are these EMT couplings code compliant for a commercial inspection?
The Crouse-Hinds compression couplings are built to NEC and CEC standards, which is what an inspector on a commercial or institutional job is checking against. Zinc plated steel construction carries the equipment grounding path through the joint, which is the other half of what gets looked at on a metal conduit system. They are approved for ordinary, non-hazardous locations only.
6) What is the red Crouse-Hinds 661SRED coupling for versus the plain zinc one?
The 661SRED is the 3/4 inch compression coupling in a red finish, the same threadless compression fitting as the standard 661S in zinc plated. The red is there for system identification, so crews can pick out one conduit system at a glance, which is common where fire alarm or another dedicated system has to be told apart from power in the same ceiling. Red is offered in 3/4 inch; the rest of the sizes are the zinc plated finish.
7) Do I need tools or threading to install a Crouse-Hinds compression coupling?
No threading. The coupling is threadless: cut and ream the EMT, slide it into the coupling body, and tighten the gland nuts down with a wrench. That is the appeal on a fit-out where you are running a lot of conduit, since it removes the threading step entirely. Each end takes one length of EMT of the matching trade size.
8) Can I standardize one EMT fitting across a whole facility with these?
Yes, and that is a normal MRO play. The Crouse-Hinds compression coupling line spans 1/2 inch through 4 inch in the same zinc plated steel, same compression style, same NEC/CEC basis, so a maintenance shop can carry one family across branch circuits, feeders and risers instead of mixing brands and styles. Order by trade size (660S through 669) and the install method is identical at every size.
How fast can I get the Crouse-Hinds 661SRED delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Crouse-Hinds 661SRED come with a warranty?
Absolutely. The Crouse-Hinds 661SRED is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Crouse-Hinds 661SRED?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Crouse-Hinds 661SRED from ZenSupply?
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