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Thomas & Betts 333M Non-Winged Wire Connector Yellow Polypropylene 18-10 AWG
Model: TB-333M
Thomas & Betts 333M Non-Winged Wire Connector Yellow Polypropylene 18-10 AWGProfessional twist-on wire connection solution for 18-10 AWG applicationsThomas & Betts delivers reliable electrical...
Thomas & Betts
$389.23
Thomas & Betts 331M Non-Winged Wire Connector Orange Polypropylene Twist-On 18-14 AWG
Professional twist-on wire connection solution for 18-14 AWG applications
The Thomas & Betts 331M Non-Winged Wire Connector delivers reliable electrical connections for 18-14 AWG wire applications. Constructed from durable polypropylene material in orange color for easy identification, this twist-on connector provides secure wire termination without requiring wing grips. UL listed for professional electrical installations.
Professional Features & Benefits
- 18-14 AWG Wire Range: Accommodates common residential and commercial wire gauges for versatile application compatibility
- Polypropylene Construction: Provides excellent durability and resistance to environmental factors for long-term reliability
- Orange Color Coding: Enables quick identification and proper wire gauge matching during installation and maintenance
- Twist-On Design: Ensures secure mechanical and electrical connection through simple rotational installation
- Non-Winged Configuration: Offers compact profile for tight spaces while maintaining reliable connection integrity
- UL E9809 Listed: Meets rigorous safety standards for professional electrical applications and code compliance
Technical Specifications
- Color: Orange
- Connection Type: Twist-On
- Department: Electrical
- Idea Granular Category Code Igcc : 4665 >> Twist on wire connector
- Material: Polypropylene
- Product Group: Connectors
- Product Subgroup: Electrical Connectors
- Product Type: Non-Winged Wire Connector
- Selling Unit Of Measure: each
- Standards: UL E9809
Professional Applications
- Residential Electrical Installations
- Commercial Building Wiring
- Industrial Control Panels
- Lighting Circuit Connections
- HVAC System Wiring
- Electrical Maintenance and Repair
- Junction Box Applications
Why Choose Thomas & Betts Quality?
Thomas & Betts wire connectors deliver proven reliability through UL E9809 listing and durable polypropylene construction. The orange color coding system ensures proper application identification while the twist-on design provides consistent, secure connections for professional electrical installations.
Manufacturer Resources
Product Specs
- Connection Type:
- Twist-On
- Idea Granular Category Code Igcc:
- 4665 >> Twist on wire connector
- Product Group:
- Wire Connectors & Terminals
- Product Type:
- Non-Winged Wire Connector
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809
- Department:
- Electrical
- Product Subgroup:
- Wire Connectors
- Product Color:
- Orange
- Product Material:
- Polypropylene
Thomas & Betts 331M – Frequently Asked Questions
1) What wire gauge range does the Thomas & Betts 331M orange wire connector handle?
The 331M twist-on connector is rated for 18 through 14 AWG conductors, which covers the fixture wire and branch-circuit sizes you see most in lighting whips, control wiring and small-appliance runs. The orange body is the gauge-identification color, so a crew pulling from a bin can pick the right size on sight instead of reading the cap.
2) Is the 331M wire nut UL listed for commercial and code work?
Yes. The Thomas & Betts 331M carries UL file E9809, which is what an inspector or a spec writer wants to see on a twist-on connector going into a commercial junction box or panel.
3) Can I use the 331M on 12 AWG branch circuit wire?
No. The 331M is built for 18 through 14 AWG only, so a 12 AWG conductor is outside its range and the splice would not be listed or secure. Step up to the next connector size in the family rated to include 12 AWG for those circuits.
4) Should I use a winged wire nut or a non-winged one like the 331M?
Winged connectors give you leverage for hand-tightening and are easier on the fingers over a long day of splices. The 331M is the non-winged style: a smooth, compact body that turns with a nut driver or pliers and takes up less room when you are folding several splices back into a crowded box or a tight fixture canopy. If your install is mostly overhead work by hand, go winged; if box fill and clearance are the problem, non-winged is the right call.
5) What part number do I order for the orange Thomas & Betts twist-on connector?
Order manufacturer part number 331M from Thomas & Betts. That is the orange, non-winged, 18-14 AWG twist-on connector; the color and the number together are how you keep it separate from adjacent gauge ranges in the same family on a purchase order.
6) Is this connector suitable for lighting and HVAC control splices in a commercial building?
Yes, those are exactly the circuits it covers. The 18-14 AWG range takes in lighting circuit taps, HVAC control and thermostat wiring, junction box splices and control panel work, and the UL E9809 listing supports use in commercial installations.
7) What is the 331M connector body made of, and will it hold up in a hot fixture or an attic?
The shell is polypropylene, an insulating thermoplastic that resists moisture and the chemicals found around building wiring. Inside, the twist-on design makes the mechanical and electrical connection as you rotate it onto the conductors, so the plastic is insulation and grip rather than the current path.
8) How is the Thomas & Betts 331M sold, by the each or by the box?
The 331M is sold each, so you order the exact count you need rather than a fixed carton. That suits MRO stockrooms topping up a bin as easily as a contractor buying for one job.
How fast can I get the Thomas & Betts 331M 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 Thomas & Betts 331M come with a warranty?
Absolutely. The Thomas & Betts 331M 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 Thomas & Betts 331M?
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product
selection,
installation tips, and troubleshooting. Contact Us
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