

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The 3M 7010398984 is a heavy-wall heat shrink cable sleeve in the ITCSN-0400 series, designed to protect electrical splices, connections, and terminations in demanding field environments. At 6 inches in length and finished in black, this sleeve delivers a durable, moisture-resistant barrier once heat is applied. Licensed electricians and experienced electrical contractors install these sleeves where mechanical strength and environmental sealing are both required. The heavy-wall construction provides a thicker insulating layer than standard thin-wall tubing, making it suited for higher-stress cable junction applications.
This heat shrink sleeve is used in residential, commercial, and light industrial electrical work wherever cable terminations and splices need both insulation and physical protection. Typical applications include cable repair, connector sealing, and wire bundle protection in conduit, panel, and field-wiring environments. The ITCSN-0400 designation indicates a 0.400-inch nominal pre-shrink diameter, appropriate for medium-gauge cable assemblies.
Designed as an OEM-style heavy-wall heat shrink sleeve for medium-gauge electrical cable splices, connections, and terminations in residential, commercial, and light industrial wiring applications.
Installation is performed by licensed electricians following applicable NEC requirements. De-energize and lock out the circuit before working on any splice or termination. Apply uniform heat using a calibrated heat gun, working from the center of the sleeve outward to prevent air pockets or uneven shrinkage. Do not use an open flame to shrink this sleeve, as uncontrolled heat can damage the sleeve or underlying conductors.
Thanks for subscribing!
This email has been registered!