Panduit ESV14BX-L StrongHold Butt Splice Connector

The Panduit ESV14BX-L is a StrongHold™ contractor-grade vinyl-insulated butt splice designed for 16-14 AWG solid or stranded copper conductors. This UL Listed and CSA Certified crimp connector delivers secure, low-resistance wire-to-wire terminations in security system installations, AV infrastructure, access control circuits, and datacenter low-voltage wiring. The tin-plated copper barrel resists corrosion while the blue vinyl sleeve provides strain relief and 600V-rated insulation. Supplied in 50-piece contractor packs, the ESV14BX-L gives installers the volume needed for mid-size projects without committing to full carton quantities.

Key Features

16-14 AWG wire range — fits security panel pigtails, PoE+ injector leads, and general low-voltage branch circuits

Tin-plated copper barrel — minimizes oxidation and maintains crimp contact integrity over decades

UL Listed and CSA Certified — meets North American electrical code requirements for permanent wire splicing

Blue vinyl insulation — color-coded per industry standard, rated 600V, provides strain relief at crimp interface

1.04-inch overall length — compact profile fits in shallow back boxes and cable trays without interference

50-piece contractor pack — right-sized for retrofit runs and service calls without excess inventory

The ESV14BX-L uses a funnel-entry barrel design that guides stripped conductors to full insertion depth before crimping. The tin-plated copper construction maintains less than 5 milliohms contact resistance when properly crimped with a ratcheting tool, critical for preserving signal integrity in RS-485 data runs or maintaining voltage drop budgets in 12/24VDC power distribution. The vinyl sleeve extends beyond each barrel crimp zone, preventing conductor strands from fraying under vibration and shielding the splice from incidental contact with grounded enclosure walls. This combination of mechanical retention and electrical isolation makes butt splices the code-compliant solution when extending home-run cables that fell short during rough-in or repairing damaged conductors without replacing entire cable assemblies.

Installers working security, access control, and AV projects encounter splice scenarios daily: camera power leads that don't reach the nearest junction box, intercom station wiring damaged during drywall installation, or network switch pigtails that need field extension to reach patch panels. The ESV14BX-L addresses these situations with a permanent crimp connection that outperforms twist-on wire connectors in both pull strength and environmental resistance. The 16-14 AWG range covers the conductor sizes most common in commercial low-voltage work — 18 AWG camera pigtails upsize to 16 AWG home runs, 14 AWG power distribution branches, and 16 AWG shielded data pairs. Bulk contractor packs eliminate the need to purchase retail blister cards at markup; a single 50-piece bag supplies an average retrofit project while fitting in a tool pouch.

StrongHold™ contractor-grade terminals meet the same UL 486A-486B and CSA C22.2 standards as Panduit's premium lines while optimizing cost for high-volume consumable applications. The ESV14BX-L carries UL Listed and CSA Certified marks, satisfying authority having jurisdiction (AHJ) inspection requirements and allowing permanent concealment behind walls or above ceilings per NEC Article 110.14(B). Cross-compatible with competitor parts 83-9291, TV14-BS-XV, and BSV14Q for procurement flexibility on BOM-specified projects.