American Fittings Dual-Rated S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$86.49
American Fittings Dual-Rated Steel Compression Connector, Insulated Throat

American Fittings Dual-Rated Steel Compression Connector, Insulated Throat

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Model: ERC250BCONN

In Stock (leaves warehouse same day if ordered before 3pm ET)

$86.49
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American Fittings ERC-250 Dual-Rated Steel Compression Connector, Insulated Throat

American Fittings' ERC-250 Series Dual-Rated Compression Connector delivers professional-grade electrical connectivity for demanding conduit installations. Constructed of steel with an insulated throat, this connector is dual-rated for use with both EMT and rigid conduit and is available in trade sizes from 2-1/2" through 4" to suit heavy-duty commercial and industrial electrical systems. The compression-style connection is UL 514B and UL 467 listed and built to NEMA FB 1 standards, ensuring dependable, code-compliant performance for professional installations.

Key Features

  • Trade Size Range: Available in 2-1/2", 3", and 4" trade sizes to accommodate large conductor bundles and high-capacity electrical installations.
  • Dual-Rated Design: Compatible with both EMT and rigid conduit systems, reducing inventory requirements and increasing installation flexibility.
  • Steel Construction: Rugged steel body delivers long-term durability for professional and industrial electrical applications.
  • Insulated Throat: Protects conductor insulation from damage during and after installation.
  • Compression Connection: Provides a secure, vibration-resistant termination for reliable, long-term performance.
  • UL 514B, 467 Listed: Meets recognized safety standards for electrical fittings used in professional and industrial installations.
  • NEMA FB 1 Compliant: Built to established industry standards for electrical fitting compatibility and performance.
  • Made in USA: Domestically manufactured to support Buy American Act compliance and dependable supply chain sourcing.

Certifications & Compliance

  • UL 514B Listed
  • UL 467 Listed
  • NEMA FB 1 Standard
  • Buy American Act Compliant
  • ARRA Compliant
  • RoHS Compliant
  • REACH Compliant
  • CA Prop 65 Compliant
  • Conflict of Minerals Certified

Technical Specifications

  • Trade Size: 2-1/2" - 4"
  • Material: Steel with Insulated Throat
  • Connection Type: Compression
  • Conduit Compatibility: EMT and Rigid (Dual Rated)
  • Listing: UL 514B, 467
  • NEMA Standard: FB 1
  • Federal Spec No.: A-A-50553
  • Country of Origin: Made in USA
  • Qty in Standard Carton: 2

Typical Applications

  • Commercial Electrical Systems
  • Industrial Conduit Installations
  • Institutional Facilities
  • Heavy-Duty Electrical Distribution
  • Professional Construction Projects
  • Code-Compliant Electrical Upgrades

Why American Fittings?

American Fittings backs the ERC-250 Series with comprehensive compliance certifications, including UL 514B and UL 467 listings, NEMA FB 1 standards, and Buy American Act compliance. Steel construction with an insulated throat ensures long-term durability and electrical safety, while domestic manufacturing supports reliable, code-compliant performance for commercial and industrial electrical projects.

Manufacturer Resources

Product Specs

Product Type:
Compression Connector
Product Material:
Steel
Connection Type:
Compression
Product Size:
2-1/2" - 4"
Listing:
UL 514B/467
Standards:
NEMA FB 1
Country of Origin:
United States
Department:
Electrical
Product Group:
Fittings & Connectors
Product Subgroup:
EMT Fittings

American Fittings ERC250BCONN – Frequently Asked Questions

1) Can the American Fittings ERC-250 compression connector be used on rigid conduit, or is it EMT only?
It's dual rated, so the same fitting terminates either EMT or rigid conduit. That's the main reason contractors stock it: one fitting covers both raceway types on a job instead of carrying two part numbers. The compression body grips the conduit rather than threading onto it, so you're not depending on field-cut threads on the rigid.
2) Is this connector listed for use in a grounding or bonding application?
It carries both UL 514B and UL 467 listings. UL 514B is the conduit fittings standard; UL 467 is the grounding and bonding equipment standard, which is why this fitting is acceptable where the connector is part of the equipment grounding path. It's also built to NEMA FB 1 and the federal spec A-A-50553.
3) Does the insulated throat mean I can skip the bushing on large EMT runs?
The ERC-250 series connector has a factory insulated throat, so the conductor insulation is protected at the point where wire passes into the enclosure without adding a separate insulating bushing to the connector. That matters most at 2-1/2 through 4 inch, where you're pulling large conductors and the pull is hard on insulation. It does not change any grounding or bonding requirement on the raceway itself.
4) Do these connectors meet Buy American requirements on a federal or public job?
They're manufactured in the United States, and American Fittings states Buy American Act and ARRA compliance for the ERC-250 series. The domestic origin plus the UL 514B/467 listing is usually what a government or institutional spec is asking for on raceway fittings. RoHS, REACH, CA Prop 65 and conflict minerals certifications are also stated.
5) Compression or set screw connector for a 3 inch EMT run?
Compression is the right call where the raceway sees vibration or where you want a tighter mechanical termination than a set screw gives. The ERC series uses a compression gland that squeezes the conduit all the way around, which holds up better under vibration than a point-contact set screw. Set screw fittings go in faster and cost less, so they're common on dry interior branch work. At 3 inch feeder size in a commercial or industrial room, compression is the usual spec.
6) Are these compression connectors rated for wet or outdoor locations?
Concrete-tight and rain-tight ratings vary by fitting and aren't part of what American Fittings states for the ERC-250 series. What is stated is the UL 514B and UL 467 listing, NEMA FB 1 construction, and dual rating for EMT and rigid. For a wet location termination, specify a fitting whose listing explicitly calls out raintight or concrete-tight service.
How fast can I get the American Fittings ERC250BCONN 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 American Fittings ERC250BCONN come with a warranty?
Absolutely. The American Fittings ERC250BCONN 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 American Fittings ERC250BCONN?
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
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