BRADY PermaSleeve Heat-Shrink Wire Marker Sleeves, 3:1, White, 4.75 mm to 1.57 mm, for BMP21-PLUS/M210/M211, 2.13 m

Wire and cable identification gets a permanent upgrade with these heat-shrink polyolefin sleeves. The white, 3:1 shrink ratio tubing locks printed legends in place under abrasion, chemicals, fuels, oils, weather, and UV exposure, while the self-extinguishing material adds a layer of safety in demanding electrical environments.

Advantages

Thermal transfer printing on B-342 polyolefin yields crisp, smudge-proof text that remains legible after shrinking. The 3:1 ratio means one sleeve size covers a wide range of wire diameters from 1.57 mm to 4.75 mm, reducing inventory. Flame-retardant and UL 224 / CSA recognized, these sleeves meet rigorous industrial standards.

Suitable for

• Wire and cable identification in control panels, harnesses, and industrial equipment
• Insulation and protection of splices and terminations
• Harsh environments with exposure to fuels, oils, chemicals, and outdoor weathering
• Use with Brady BMP21-PLUS, BMP21-LAB, M210, and M211 label printers

Key specifications

• Material: Heat-shrink polyolefin, B-342
• Shrink ratio: 3:1
• Pre-shrink inner diameter: 4.75 mm (0.187 in)
• Post-shrink inner diameter: 1.57 mm (0.062 in)
• Wire gauge compatibility: 16-10 AWG (1.5-6.0 mm²)
• Operating temperature: -55°C to 135°C (-67°F to 275°F)
• Cartridge length: 2.13 m (7 ft)
• Print technology: Thermal transfer
• Resistance: Abrasion, chemical, fuel & oil, weather, UV light
• Flame retardancy: Yes (self-extinguishing)
• Compliance: RoHS, UL Recognized (UL 224), CSA Accepted

Recommendations

For best results, use with Brady BMP21-PLUS, BMP21-LAB, M210, or M211 label printers and compatible thermal transfer ribbon. Ensure wire diameter falls within the specified range for optimal shrink fit.