3M 7000132580 Heat Shrinkable Cable Breakout Boot

Product Description

The 3M 7000132580 is a heat shrinkable cable breakout boot designed to insulate and seal cable breakouts in multiconductor armored or sheathed cables and conduit ends. Sold as a single unit, this boot carries the internal model designation HDBB-340-1-250 and is configured as a 3-way outlet in black. It is constructed from flame retardant, cross-linked polyolefin that meets material requirements of MIL-I-81765-1. An internal adhesive coating is applied from the factory to create a reliable environmental seal once heat is applied. Electricians and cable assembly technicians install these boots during termination or repair of multiconductor cable systems where moisture ingress and mechanical stress are primary concerns.

This boot is suited for use in industrial, commercial, and utility electrical installations where multiconductor armored or sheathed cables require protected breakout points. Typical applications include conduit end sealing, cable tray transitions, and anywhere a 3-way cable branch must be insulated and sealed against environmental exposure. The 3-way outlet configuration accommodates one incoming cable path splitting into three outgoing conductors. The product is applicable to installations governed by the NEC where environmental sealing at cable terminations is required.

Key Features

• Flame retardant, cross-linked polyolefin construction meets MIL-I-81765-1 material requirements
• Internal adhesive lining bonds to cable jacket on shrink for reliable environmental sealing
• 3-way outlet configuration supports one-to-three conductor breakout geometry
• Heat shrink installation requires no special tooling beyond a standard heat source
• Provides both electrical insulation and mechanical protection at the breakout point
• Black color for standard identification in cable management systems

Compatibility

Designed for use with multiconductor armored or sheathed cables and conduit ends where a 3-way heat shrinkable breakout boot is required. Verify cable outer diameter falls within the specified entry and outlet ranges of the HDBB-340-1-250 before installation.

Installation Notes

Installation is performed by licensed electricians or qualified cable assembly technicians. Power down and de-energize all conductors before beginning any cable termination work. Position the boot over the cable breakout, align each outlet leg over the appropriate conductor group, then apply heat evenly using a heat gun until the boot conforms fully and the internal adhesive flows to seal the interface. Do not overheat or concentrate flame directly on the boot surface.

Technical Specifications

• Material: Flame retardant cross-linked polyolefin
• Configuration: 3-way outlet
• Color: Black
• Internal Lining: Adhesive coated
• Military Specification: MIL-I-81765-1
• Unit of Measure: Each
• UPC: 00051135359983

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000132580