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Thomas & Betts 428-TB Nylon Insulating Sleeve 2-1/2 Inch Cross Section UL Listed
Professional Wire Protection & Electrical Insulation
Thomas & Betts delivers reliable electrical protection with this professional-grade nylon insulating sleeve featuring 2-1/2 inch nominal cross section. Engineered for wire protection applications, this UL listed and CSA certified sleeve provides dependable insulation in electrical installations where conductor protection is essential.
Professional Features & Benefits
- 2-1/2 Inch Cross Section: Accommodates standard conductor sizes for versatile wire protection applications
- Nylon Construction: Durable material provides excellent electrical insulation properties and mechanical strength
- UL E23018 & CSA Listed: Meets rigorous safety standards ensuring reliable performance in electrical installations
- Compact Design: Inner dimensions of .04x.04x.02 inches optimize space efficiency in electrical enclosures
- Convenient Packaging: Available in inner quantities of 5 and outer quantities of 10 for flexible project requirements
- Lightweight Construction: 3 lbs. per 100 units facilitates easy handling and installation
Technical Specifications
- Department: Electrical
- Inner Dimensions Inches: .04x.04x.02
- Inner Quantity: 5
- Material: Nylon
- Nominal Cross Section: 2-1/2 Inch
- Outer Dimensions Inches: 5.9x5.1x5.2
- Outer Quantity: 10
- Product Details: Insulating Sleeve
- Product Group: Wire Protection
- Product Subgroup: Electrical Sleeves
- Product Type: Insulating Sleeve
- Standard: UL E23018, CSA
- Unspsc: 39131711 Wireway fitting and accessories
- Weight Uom: 3 lbs. per 100
Installation & Operation
- Mount the unit in a suitable location with appropriate clearance and access for connections and service.
- Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
- Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
- Configure any available load management or control features as supported by the provided specifications.
- Test automatic transfer or operational functionality and verify proper performance before placing into service.
- Complete final inspection and follow ongoing maintenance practices appropriate to the product category.
Professional Applications
- Residential Electrical Installations
- Commercial Building Wiring
- Industrial Control Panels
- Electrical Enclosures
- Wire Management Systems
- Conductor Protection Applications
- Electrical Maintenance & Repair
Why Choose Thomas & Betts Quality?
Thomas & Betts insulating sleeves deliver proven reliability with UL E23018 and CSA certifications, ensuring compliance with electrical safety standards. The durable nylon construction and precise engineering provide long-lasting performance in demanding electrical applications.
Manufacturer Resources
Product Specs
- Inner Dimensions Inches :
- .04x.04x.02
- Inner Quantity:
- 5
- Nominal Cross Section:
- 2-1/2 Inch
- Outer Dimensions Inches :
- 5.9x5.1x5.2
- Outer Quantity:
- 10
- Product Group:
- Wire Protection
- Standard:
- UL E23018, CSA
- Unspsc:
- 39131711 Wireway fitting and accessories
- Weight Uom:
- 3 lbs. per 100
- Department:
- Electrical
- Product Subgroup:
- Electrical Sleeves
- Product Type:
- Insulating Sleeve
- Product Details:
- Insulating Sleeve
- Product Material:
- Nylon
Thomas & Betts 428-TB – Frequently Asked Questions
How fast can I get the Thomas & Betts 428-TB 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 428-TB come with a warranty?
Absolutely. The Thomas & Betts 428-TB 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 428-TB?
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
Why buy the Thomas & Betts 428-TB from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.