Ideal Industries Wire-Nut Wire...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$70.00
$13.75
IDEAL Industries 30-072 Wire-Nut® Wire Connector, Model 72B® Blue, Box of 100

Ideal Industries Wire-Nut Wire Connector Model 72B Blue Twist-On 100 Pack

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Model: 30-072
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$70.00
$13.75
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Ideal Industries Wire-Nut Wire Connector Model 72B Blue

Professional-Grade Twist-On Wire Connection Solution

The Ideal Industries Wire-Nut Wire Connector Model 72B delivers professional-grade wire connection performance for electrical installations. This thermoplastic twist-on connector features the classic American design trusted since 1928, designed for electricians, telecommunications professionals, and electrical contractors, providing the reliable performance and industry-leading quality that electrical professionals demand.

Professional Features & Benefits

Superior Connection Performance

  • Fixed Square-Wire Spring - Provides lasting grip and secure connection for long-term reliability
  • Positive Grip Shell Design - Perfect finger-twist application ensures proper installation every time
  • Fine Stranded Wire Compatibility - Excellent performance with fine stranded wire applications
  • Refined Wire Range - Handles all common electrical connection applications

Safety & Code Compliance

  • Air Handling Space Rated - Approved for use in air handling spaces per electrical codes
  • Bonding and Grounding Approved - Certified for critical bonding and grounding applications
  • UL Listed Performance - Meets stringent safety standards for electrical installations

Technical Specifications

Model 72B blue wire connector with thermoplastic construction, fixed square-wire spring mechanism, positive grip shell design, air handling space rating, bonding and grounding approval, and UL listing for professional electrical applications. Packaged in convenient 100-piece boxes for contractor efficiency.

Installation & Setup

  1. Strip wire ends to appropriate length ensuring clean copper exposure
  2. Hold wires parallel and insert into connector opening
  3. Twist connector clockwise using positive grip shell until tight
  4. Verify secure connection by gently tugging wire bundle
  5. Ensure no bare copper is exposed beyond connector
  6. Test connection integrity before energizing circuit

Professional Applications

Ideal for:

  • Residential Electrical - Branch circuit connections, outlet wiring, switch connections
  • Commercial Construction - Office building wiring, retail electrical systems, lighting circuits
  • Industrial Wiring - Control panel connections, motor wiring, equipment grounding
  • Telecommunications - Low voltage connections, communication system grounding
  • Air Handling Systems - HVAC electrical connections, plenum space applications
  • Grounding Applications - Equipment bonding, system grounding, safety connections
  • Fine Stranded Wire - Flexible cord connections, multi-strand applications
  • Maintenance and Repair - Junction box connections, circuit modifications

Wire-Nut Technology Advantage

Ideal Industries Wire-Nut connectors feature the original American design trusted since 1928, with fixed square-wire spring technology that provides superior grip and connection reliability. The positive grip shell design ensures proper installation while the thermoplastic construction withstands extreme conditions and chemical exposure for long-lasting electrical connections.

Why Choose Ideal Industries Quality?

Ideal Industries commitment to UL listing, air handling space approval, and bonding/grounding certification ensures reliable performance and code compliance for electrical professionals. The Model 72B represents nearly a century of wire connection innovation, providing the trusted quality and safety features that electricians and contractors depend on for critical electrical installations.

Manufacturer Resources

Product Specs

Product Group:
Wiring Devices
Department:
Electrical
Product Subgroup:
Wiring Accessories

Ideal Industries 30-072 – Frequently Asked Questions

1) Can I use these blue wire nuts in a plenum or air handling space?
Yes. The 72B is rated for use in air handling spaces, so it's acceptable for HVAC and plenum-space electrical connections where the code requires an air-handling-rated connector.
2) Are the 72B Wire-Nuts approved for grounding and bonding connections?
They are. The 72B carries bonding and grounding approval, so it can be used on equipment bonding jumpers and system grounding splices, not just line and neutral conductors. That approval is separate from a standard connector listing, which is why it matters on green-wire work.
3) What is the Ideal 72B blue Wire-Nut connector used for?
The 72B is a twist-on thermoplastic wire connector, part number 30-072, used to splice copper conductors in junction boxes, switch and outlet boxes, lighting circuits, control panels and motor wiring. It uses a fixed square-wire spring inside a positive-grip shell so it can be finger-twisted on without a tool.
4) Will these Ideal connectors hold fine stranded wire?
The 72B is called out for fine stranded wire performance, so it works on flexible cord and multi-strand conductors as well as solid copper. Many twist-on connectors struggle with fine strands pushing back out of the spring; this one is specified for that use.
5) Is the Ideal 72B UL Listed?
Yes, the 72B twist-on connector is UL Listed, alongside its air handling space rating and bonding/grounding approval.
6) Do I need a tool or tape to install a Wire-Nut 72B?
No tool and no tape. Strip the conductors, hold them parallel, insert them into the connector and twist clockwise by hand using the grip shell until tight, then tug the bundle to confirm it's locked. Check that no bare copper shows below the skirt before you energize.
7) How many wire nuts come in a box of the Ideal 30-072?
One hundred. The 72B blue connector ships in a 100-piece box, which is the contractor pack for stocking a van or a job cart.
8) Can I standardize on one wire nut color across residential and commercial jobs?
The blue 72B covers a broad range of common branch-circuit splices and is approved for air handling spaces and for bonding/grounding, so one box handles outlet and switch boxes, lighting circuits, HVAC connections and ground splices. Wire nuts are still sized by the combination of conductors going into them, so a facility stocking a single color should confirm the splice combinations on hand fall within the 72B's range.
How fast can I get the Ideal Industries 30-072 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 30-072 come with a warranty?
Absolutely. The Ideal Industries 30-072 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 30-072?
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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