Panduit EV10-14LFB-Q StrongHold™ Locking Fork Terminal

The Panduit EV10-14LFB-Q is a vinyl-insulated locking fork terminal engineered for 12-10 AWG wire terminations to 1/4" stud connections. Part of Panduit's StrongHold™ series, this terminal combines a zinc-plated copper barrel with a locking fork design that prevents vibration-induced loosening in battery strings, UPS installations, and power distribution assemblies. UL 587-H listed and CSA certified, it ships in 25-piece packs suitable for mid-scale datacenter power work and commercial electrical rough-ins where secure, code-compliant terminations are non-negotiable.

Key Features

12-10 AWG wire range with 1/4" stud compatibility

StrongHold™ locking fork design resists vibration and thermal cycling

Zinc-plated copper construction for corrosion resistance

Vinyl insulation rated to UL 587-H flammability standards

UL listed (E52164) and CSA certified (LR31217)

25-piece contractor pack, 250 per carton for volume installs

Compatible with Panduit CT-series crimping tools

The EV10-14LFB-Q uses a zinc-plated copper barrel and tongue, providing reliable conductivity and environmental protection in battery rooms, electrical closets, and outdoor-rated enclosures where moisture ingress is a concern. The vinyl insulation meets UL 587-H flammability requirements and provides dielectric protection up to the terminal's rated voltage. At 1.19" overall length and 0.46" width, the terminal fits standard 1/4" studs found on UPS battery terminals, PDU inputs, and grounding bus bars. The StrongHold locking fork design incorporates a spring-tab mechanism that maintains contact pressure even under thermal expansion cycles and mechanical vibration—critical for installations where loose connections trigger arc faults or voltage drops. Crimping compatibility spans Panduit's CT-100A, CT-600-A, CT-1550, CT-1551, and CT-2500 series tools, ensuring consistent barrel compression and pull-out resistance per NEC 110.14 workmanship requirements.

Battery string terminations represent the most common use case: datacenter UPS retrofits, telecom VRLA installations, and solar ESS projects where 12-10 AWG battery interconnects land on 1/4" posts. The locking fork prevents the gradual loosening that causes high-resistance connections, which manifest as voltage sag under load or localized heating detectable only through IR thermography. Electrical contractors also deploy these terminals in power distribution blocks, three-phase disconnect boxes, and industrial control panels where NEC 110.14 mandates listed termination methods. The 25-piece pack aligns with typical battery cabinet installs (12-24 terminals per UPS depending on string configuration), reducing packaging waste while keeping unit cost practical for projects with 50-200 termination points.

The EV10-14LFB-Q bridges the gap between commodity ring terminals (which require full stud disassembly) and expensive compression lugs (which need hydraulic tooling). For integrators running battery strings in seismic zones, the locking fork's vibration resistance matters more than any cost delta. UL/CSA dual listing clears AHJ plan review in all fifty states, and the zinc finish extends service life in coastal or high-humidity environments where bare copper would oxidize within months.