Brady THT-75-427-3 Self-Laminating Vinyl Wrap-Around Wire & Cable Labels | 2.25" x 1" | 3" Core
Brady THT-75-427-3 — Self-Laminating Vinyl Wrap-Around Wire & Cable Labels | 2.25" × 1" | 3" Core
Brady THT-75-427-3 self-laminating vinyl wrap-around labels are engineered for professional wire and cable identification in electrical, datacom, and industrial applications. Made from Brady B-427 self-extinguishing vinyl, each label features a white printable zone and a clear overlaminate tail that wraps around the wire to protect printed text from abrasion, moisture, chemicals, and UV exposure. Compatible with 3" core thermal transfer label printers including the BradyPrinter i5100 and Brady IP® Series. Rolls of 500 labels.
Part Number: THT-75-427-3 | Size: 2.25" × 1" | 3" Core | Material: B-427 Self-Laminating Vinyl | Sold per roll.
Specifications
| Part Number | THT-75-427-3 |
| Label Size | 2.25" × 1" (57.15 mm × 25.4 mm) |
| Core Size | 3" |
| Material | B-427 Self-Laminating Vinyl |
| Format | Self-laminating wrap-around (white printable zone + clear overlaminate) |
| Print Method | Thermal transfer (ribbon required) |
| Recommended Ribbon | IP-R4302 (BradyPrinter i5100 / Brady IP® Series); R4302 (other printers) |
| Adhesive | Permanent acrylic |
| Service Temperature | -40°F to 158°F (-40°C to 70°C) |
| Approvals | UL approved |
| Manufacturer | Brady Corporation |
Key Features
- Self-laminating wrap-around format — white printable zone accepts thermal transfer printing; clear overlaminate tail wraps around the wire to fully protect text from abrasion, moisture, oils, and UV
- B-427 self-extinguishing vinyl — excellent clarity and conformability; wraps cleanly around wires and cables of varying diameters without lifting or flagging
- Permanent acrylic adhesive — outstanding resistance to water, oil, and chemicals; label stays in place through vibration and environmental exposure in industrial environments
- Wide service temperature range — rated from -40°F to 158°F (-40°C to 70°C); suitable for outdoor, industrial, and harsh-environment wire identification
- UL approved — meets UL requirements for wire and cable marking in electrical installations
- 3" core format — designed for 3" core label printers including the BradyPrinter i5100 and Brady IP® Series industrial label printers
Industries & Applications
- Electrical and datacom — wire and cable identification in control panels, switchgear, junction boxes, and wiring harnesses per NEC and facility standards
- Electronics manufacturing — PCB wire harness identification, component lead marking, and assembly wire labeling
- Industrial automation — machine wiring identification, motor lead marking, and cable tray labeling in manufacturing facilities
- IT and network infrastructure — patch cable identification, structured cabling, and data center wire management
- Aerospace and defense — wire bundle marking in aircraft wiring harnesses and military electronics assemblies
- Utilities and field service — outdoor wire and cable ID on power distribution equipment, transformers, and field wiring
Documentation
Frequently Asked Questions
What printer is the THT-75-427-3 compatible with?
The THT-75-427-3 is designed for 3" core thermal transfer label printers, including the Brady BradyPrinter i5100 and Brady IP® Series industrial label printers. A ribbon is required — use Brady IP-R4302 for the i5100 or IP® Series, or R4302 for other compatible Brady thermal transfer printers.
What wire diameters does the THT-75-427-3 label fit?
The 2.25" × 1" label size with self-laminating wrap-around format accommodates a range of wire and cable diameters. The white printable zone provides the identification text, while the clear overlaminate tail wraps around the wire. Refer to the Brady B-427 TDS for recommended wire diameter range for this specific label size.
Is the THT-75-427-3 approved for use in electrical installations?
Yes — Brady THT-75-427-3 labels are UL approved for wire and cable identification. The B-427 vinyl material is also self-extinguishing, which is an important property for labels used in electrical panels, switchgear, and other applications where fire resistance is required.
What is the difference between THT-75-427-3 and WRAP-10-427?
Both use B-427 self-laminating vinyl material, but they differ in size and printer compatibility. The THT-75-427-3 (2.25" × 1") is designed for 3" core printers such as the BradyPrinter i5100. The WRAP-10-427 is sized for the Brady A6500 printer applicator. Choose based on your printer model and wire size requirements.
Can these labels withstand outdoor or harsh industrial environments?
Yes — Brady B-427 self-laminating vinyl labels are rated for service from -40°F to 158°F (-40°C to 70°C) and feature a permanent acrylic adhesive with outstanding water and oil resistance. The clear overlaminate protects the printed text from abrasion, chemicals, and UV exposure, making them suitable for outdoor and industrial wire identification.
