Brady BMP21 Series PermaSleeve Heat Shrink Wire Marking Sleeves 0.375" Dia x 7' L Polyolefin 3:1 Ratio

Brady BMP21 Series PermaSleeve Heat Shrink Wire Marking Sleeves

Professional Wire Identification with 3:1 Heat Shrink Technology

Brady BMP21 Series PermaSleeve Heat Shrink Wire Marking Sleeves deliver reliable wire identification for electrical contractors, maintenance crews and industrial professionals. These 0.375" diameter x 7' length polyolefin sleeves feature a 3:1 shrink ratio and operate from -67�F to 275�F, making them ideal for harsh environments requiring permanent wire marking solutions.

Professional Features & Benefits

• 3:1 Heat Shrink Ratio: Provides secure fit on wire gauges from 12 AWG to 4 AWG with reliable shrinkage for permanent attachment.
• Extreme Temperature Range: Operating temperature of -67�F to 275�F (-55�C to 135�C) ensures performance in demanding industrial environments.
• Chemical Resistant Polyolefin: Resists chemicals, grease, oil and cleaning agents while maintaining smudge-proof finish for lasting identification.
• Flame-Retardant Construction: Heat-shrinkable polyolefin material provides flame-retardant properties for enhanced safety in electrical applications.
• BMP21 Printer Compatibility: Compatible with BMP21-PLUS, BMP21, and IDPAL printers for thermal transfer printing with black text on white background.
• Industry Compliance: Meets ASTM D 2671, ASTM E 162, MIL-STD-202, SAE-AMS-DTL-23053, and UL requirements for professional applications.
• Multi-Resistant Properties: Chemical-resistant, corrosion-resistant, humidity-resistant, UV-resistant and weather-resistant for long-term durability.

Technical Specifications

• Applications: Electrical Labeling; Wire and Cable Labeling
• Brady Material Number: B-342
• Ca Prop 65 Label Warning: WARNING: Cancer - www.P65warnings.ca.gov
• Ca Prop 65 Labeled: Yes
• Contains Ca Prop 65 Cancer Causing Chemical: Antimony Trioxide
• Contains Ca Prop 65 Substance: Yes Contains-Label required
• Contains Ca Prop 65 Warning Type: Cancer
• Contains Heavy Metal S : No - Does not contain
• Continuous Die Cut Materials Supported: Continuous Tapes Only
• Diagram: Icon 5 (circle with centre dot)
• Diameter As Supplied In Ft Yd : 0.375 in
• Diameter As Supplied Mm Cm M : 9.5 mm
• Dimensions 2: 0.645 in H
• Dimensions Metric : 16.40 mm W x 16.4 mm H x 2.10 m L
• Dot Regulated Product: No = not regulated by DOT
• Enables Industry Compliance: ASTM D 2671; ASTM E 162; ASTM E 662; ASTM G 155; MIL-STD-202; SAE-AMS-DTL-23053; SAE-AS-81531; UL R
• Eu Rohs Compliance: Pass 2011/65/EU(Pass 2015/863)
• Eu Rohs Compliant: Yes
• For Use With Printer: BMP�21 LAB Label Printer; BMP�21 Labeler; BMP�21 PLUS Portable Label Printer; IDPAL� Handheld Label
• Height In Ft Yd : 0.645 in
• Height Mm Cm M : 16.4 mm
• Label Media Format: Label/Media in Cartridge with Ribbon
• Label Properties: Heat Shrink Sleeves
• Manufacturer Part Number: M21-375-C-342
• Material Properties: Flame-retardant; Heat-shrinkable
• Maximum Service Temperature C: 135 �C
• Maximum Service Temperature F: 275 �F
• Maximum Wire Diameter In Ft Yd : 0.32 in
• Maximum Wire Diameter Mm Cm M : 8.13 mm
• Maximum Wire Gauge: 4 AWG
• Minimum Service Temperature C: -55 �C
• Minimum Service Temperature F: -67 �F
• Minimum Wire Diameter In Ft Yd : 0.125 in
• Minimum Wire Diameter Mm Cm M : 3.18 mm
• Minimum Wire Gauge: 12 AWG
• Primary Noun Basic Function: Heat Shrink Tubing
• Print Technology: Thermal Transfer
• Printable Sides: Single-Side Printable
• Printer And Label Applications: Wire & Cable
• Printer Compatibility: BMP21-PLUS; BMP21; IDPAL
• Printer Compatibility Print : BMP21-PLUS
• Product Color: Black on White
• Product Dimensions: 0.645 in H
• Product Finish: Matte
• Product Material: Heat-shrink Polyolefin
• Quantity Per Row: 1
• Recovered Diameter In Ft Yd : 0.375 in
• Recovered Diameter Mm Cm M : 9.53 mm
• Resistance Properties: Chemical-Resistant; Corrosion-Resistant; Humidity-Resistant; Smear-Resistant; UV-Resistant; Weather
• Ribbon Color: Black
• Ribbon Series: R4300
• Roll Length In Ft Yd : 7 ft
• Roll Length Mm Cm M : 2.13 m
• Sap B Number: B-342
• Sds Safety Data Sheet Required: No = MSDS/SDS is not required
• Shrink Ratio: 3:01
• Size Length M : 2.10 m
• Size Width Mm : 16.40 mm
• Sleeve Size In Ft Yd : 0.375 in Dia x 7 ft L
• Sleeve Size Mm Cm M : 9.5 mm Dia x 2.13 m L
• Tape Color: White
• Total Qty Per Pack: 1 Roll(s) / Box
• Trade Name: BMP�21 PermaSleeve�
• Web Width In Ft Yd : 0.645 in
• Web Width Mm Cm M : 16.38 mm
• Wire Diameter Range: 0.125 in to 0.32 in
• Wire Gauge Range: 12 AWG to 4 AWG

Installation & Operation

1. Mount the unit in a suitable location with appropriate clearance and access for connections and service.
2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
4. Configure any available load management or control features as supported by the provided specifications.
5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

• Electrical Contractor Wire Identification
• Industrial Maintenance and Repair
• Commercial Facility Wire Marking
• Manufacturing Plant Cable Labeling
• Utility and Power Distribution
• Control Panel Wire Organization
• Harsh Environment Wire Marking

Why Choose Brady Quality?

Brady PermaSleeve heat shrink wire marking sleeves combine proven polyolefin material technology with industry compliance standards including ASTM, MIL-STD, SAE, and UL requirements. The flame-retardant construction and extreme temperature range from -67�F to 275�F ensure reliable performance in demanding professional applications where permanent wire identification is critical.