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Thomas & Betts 2" Knockout Bushing - Black Polycarbonate Construction
Professional electrical protection for conduit and fitting applications
Thomas & Betts delivers reliable knockout bushing protection with this 2" size polycarbonate bushing designed for professional electrical installations. The black polycarbonate construction provides durable protection for conduit connections while ensuring proper wire management and electrical safety in commercial and industrial applications.
Professional Features & Benefits
- 2" Size Rating: Accommodates standard 2-inch knockout openings for versatile installation compatibility across electrical enclosures and panels.
- Polycarbonate Material: Engineered thermoplastic construction delivers superior impact resistance and long-term durability in demanding electrical environments.
- Black Color Finish: Professional appearance integrates seamlessly with standard electrical equipment while providing UV resistance for extended service life.
- Knockout Bushing Design: Specialized configuration protects wire insulation from sharp metal edges while maintaining secure conduit connections.
- Conduit & Fittings Category: Purpose-built for electrical conduit systems ensuring proper wire protection and code compliance in professional installations.
- Thomas & Betts Quality: Trusted electrical component manufacturer providing reliable performance and consistent quality for professional electrical contractors.
Technical Specifications
- Color: Black
- Department: Electrical
- Material: Polycarbonate
- Number Of Batteries: 0
- Product Group: Conduit & Fittings
- Product Subgroup: Bushings
- Product Type: Knockout Bushings & Plugs
Professional Applications
- Commercial Electrical Panels
- Industrial Control Enclosures
- Residential Service Equipment
- Motor Control Centers
- Distribution Panels
- Electrical Junction Boxes
- Conduit System Installations
Why Choose Thomas & Betts Quality?
Thomas & Betts knockout bushings deliver proven reliability through engineered polycarbonate construction and precision manufacturing. The durable black finish and professional-grade materials ensure long-term performance in demanding electrical applications while maintaining code compliance and installation integrity.
Manufacturer Resources
Product Specs
- Number Of Batteries:
- 0
- Product Group:
- Conduit & Raceway
- Product Type:
- Conduit Bushing
- Department:
- Electrical
- Product Subgroup:
- Conduit Fittings
- Product Color:
- Black
- Product Material:
- Polycarbonate
Thomas & Betts 3215 – Frequently Asked Questions
1) Is the 3215 bushing plastic or metal?
It is black polycarbonate, not metal. That matters two ways on the job: the molded thermoplastic edge is what protects conductor insulation where it passes the metal knockout edge, and the bushing itself carries no bonding path. If your installation needs the fitting to be part of the equipment grounding path, use a metallic bushing or a grounding bushing with a lug instead.
2) What does a knockout bushing actually do in a panel?
It lines the opening so conductors do not bear on the sharp cut edge of the sheet metal knockout. In an electrical panel, control enclosure, or junction box the raw knockout edge will cut insulation over time with vibration and pulling. The 2 inch T&B 3215 snaps into that opening and gives the wire a smooth radius to pass over. It is a wire protection part, not a strain relief or a cable clamp, so it does not secure the cable.
3) Will a plastic bushing work in an industrial control enclosure, or should I use an insulated metallic bushing?
For plain conductor protection at a 2 inch entry, the polycarbonate 3215 is the straightforward choice and it is called out for commercial panels, industrial control enclosures, motor control centers, and distribution panels. Go to an insulated-throat metallic bushing instead when the fitting has to be mechanically strong, has to take the heat of a high-temperature area, or has to participate in bonding.
4) How do I order the right Thomas & Betts bushing part number for 2 inch?
Ask for Thomas & Betts 3215. That is the manufacturer part number for the 2 inch black polycarbonate knockout bushing, and it is the only configuration the model offers, so there is no finish, color, or thread option to specify.
5) Do I need anything else with the bushing to finish a 2 inch panel entry?
The bushing on its own only protects the conductors at the opening. You still need whatever secures the raceway to the enclosure, a 2 inch connector or conduit coupling and locknut as the wiring method requires, since the 3215 is not a clamping or threaded securing fitting.
How fast can I get the Thomas & Betts 3215 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 3215 come with a warranty?
Absolutely. The Thomas & Betts 3215 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 3215?
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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and
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