Ideal Industries Wire-Nut Wire...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$110.00
$46.00
Ideal Industries Wire-Nut Wire Connector Model 73B Orange Twist-On, Jar of 300

Ideal Industries Wire-Nut Wire Connector Model 73B Orange Twist-On, Jar of 300

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Model: 30-073J
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$110.00
$46.00
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Ideal Industries Wire-Nut Wire Connector Model 73B Orange

Professional-Grade Twist-On Wire Connector for Electrical Applications

The Ideal Industries Wire-Nut Wire Connector Model 73B delivers professional-grade wire connection performance for electrical installations. This thermoplastic twist-on connector features a fixed square-wire spring designed for electricians, electrical contractors, and maintenance professionals, providing the reliable performance and industry-leading quality that electrical professionals demand since 1928.

Professional Features & Benefits

Superior Connection Performance

  • Fixed Square-Wire Spring - Provides lasting grip and reliable electrical connection for long-term durability
  • Positive Grip Shell Design - Perfect twist-on application with fingers for quick and secure installation
  • Refined Wire Range - Handles all common electrical applications with consistent performance
  • Fine Stranded Wire Compatibility - Excellent performance with fine stranded wire applications

Safety & Code Compliance

  • UL Listed Construction - Meets National Electrical Code requirements for safe electrical connections
  • Bonding and Grounding Approved - Certified for critical bonding and grounding applications
  • Air Handling Space Rated - Approved for use in air handling spaces per electrical codes

Technical Specifications

Model 73B orange wire connector with thermoplastic construction and fixed square-wire spring mechanism. Designed for common electrical wire combinations with positive grip shell for secure twist-on installation. Temperature rated for standard electrical applications with chemical-resistant thermoplastic body construction.

Installation & Setup

  1. Strip wire insulation to appropriate length for proper conductor exposure
  2. Align stripped conductors parallel and twist together clockwise
  3. Thread Wire-Nut connector onto twisted conductors with clockwise rotation
  4. Tighten until connector is hand-tight and conductors are fully secured
  5. Verify no exposed conductor extends beyond connector base
  6. Test connection integrity before energizing circuit

Professional Applications

Ideal for:

  • Residential Electrical - Branch circuit connections, outlet and switch wiring, fixture installations
  • Commercial Construction - Office building electrical systems, retail electrical installations
  • Industrial Wiring - Control panel connections, motor wiring, equipment installations
  • Maintenance Applications - Electrical repairs, system modifications, troubleshooting connections
  • Bonding and Grounding - Equipment grounding connections, system bonding applications
  • Fine Stranded Wire - Specialty applications requiring fine stranded wire connections
  • Air Handling Systems - HVAC electrical connections in air handling spaces
  • Code Compliance Projects - NEC-compliant electrical installations and upgrades

Wire-Nut Technology Advantage

Ideal Industries Wire-Nut connectors feature precision-engineered square-wire springs that provide superior grip and electrical connection reliability. The thermoplastic shell construction withstands chemicals and performs effectively in extreme conditions, while the positive grip design ensures consistent twist-on installation for professional results every time.

Why Choose Ideal Industries Quality?

Ideal Industries has been the trusted name in electrical connections since 1928, providing UL-listed Wire-Nut connectors that meet National Electrical Code requirements. Our commitment to safety certifications, reliable performance, and code compliance makes Wire-Nut connectors the preferred choice for electrical professionals who demand consistent, long-lasting connections in critical electrical applications.

Manufacturer Resources

Spec Sheet

Product Specs

Product Group:
Wire Connectors & Terminals
Department:
Electrical
Product Subgroup:
Wire Connectors
Product Type:
Twist-On Wire Connector

Ideal Industries 30-073J – Frequently Asked Questions

1) What is the part number for the orange Ideal Wire-Nut 73B connectors sold in a jar?
Order Ideal Industries 30-073J. That is the jar packaging of the Model 73B Wire-Nut twist-on connector in orange. The 73B is the model designation stamped on the connector itself, while 30-073J is the manufacturer part number you order by.
2) Can Wire-Nut 73B connectors be used for equipment grounding and bonding splices?
Yes. The Model 73B is approved for bonding and grounding applications, so it can be used on equipment grounding conductor splices and system bonding connections, not just line and neutral joints. It is UL Listed and meets National Electrical Code requirements for those connections.
3) Are these orange wire nuts allowed in a plenum or air handling space above a ceiling?
Yes. The 73B Wire-Nut is rated for use in air handling spaces per electrical code, which is what an HVAC or commercial fit-out crew needs when splices land in the return plenum above a drop ceiling. Confirm the rest of the assembly (cable, box) carries the same rating for that space.
4) Will a twist-on wire nut hold on fine stranded wire, or do I need a different connector?
The 73B is specifically called out for fine stranded wire performance, so it is one of the twist-on types you can use on control and fixture leads with fine strands rather than moving to a crimp or push-in connector. The fixed square-wire spring is what gives it the lasting grip on those conductors.
5) Do I have to pre-twist the conductors before threading on a Wire-Nut 73B?
Ideal's stated method is to strip the insulation, align the stripped conductors parallel, twist them together clockwise, then thread the connector on clockwise until hand tight. After that, check that no bare conductor is showing below the base of the connector before you energize. That last check is the one inspectors flag most often.
6) What is inside the shell of an Ideal 73B wire nut, and why does it matter?
A fixed square-wire spring sits inside a thermoplastic shell. The square-wire spring bites into the conductors as you twist, which is what keeps the connection tight over time; the thermoplastic body resists chemicals and holds up in extreme conditions. The shell also has the positive grip ribbing so you can drive it home with fingers alone, no pliers needed on a normal splice.
7) Are orange 73B wire nuts suitable for commercial and industrial work or just residential outlets?
Both. The 73B is used on residential branch circuits, receptacle and switch wiring, and fixture installs, and it is also specified for commercial building electrical, control panel connections, motor wiring, and equipment installations. For an MRO or facilities stockroom, the jar pack is the format that suits repair and modification work where you are pulling connectors one at a time.
How fast can I get the Ideal Industries 30-073J 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 Ideal Industries 30-073J come with a warranty?
Absolutely. The Ideal Industries 30-073J 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 Ideal Industries 30-073J?
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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