Panduit CB70-14-190 Copper Mechanical Lug, 8-2 AWG, 190-Pack
Overview
The Panduit CB70-14-190 is a Pan-Lug™ copper mechanical lug designed for demanding electrical termination applications where reliable conductor-to-connector contact is non-negotiable. Part of Panduit's Panduit electrical and connectivity catalog, the CB70-14-190 (often searched as CB70 14 190) ships in a 190-piece pack — a pack quantity sized for contractors and industrial maintenance teams who terminate in volume, not one-offs. Rated to 600V with a 90°C temperature ceiling, this lug is built for commercial and light industrial panel work where code compliance and long-term mechanical integrity matter.
Key Features
- High-Strength Electrolytic Copper Construction: The lug body is machined from electrolytic copper — the same material grade used in busbars and switchgear. This minimizes contact resistance at the termination point, which directly reduces heat buildup under load. For a 90A-rated device, keeping that junction cool is what separates a reliable installation from a callback six months later.
- Wide Wire Range — 8-2 AWG: A single lug handles the full 8-2 AWG conductor range, which means one SKU covers most branch-circuit and feeder termination scenarios in a commercial panel. Stocking a narrower set of part numbers reduces procurement complexity and cuts the chance of reaching for the wrong lug mid-job.
- Internal Pressure Bar and V-Bottom Collar: The pressure bar distributes clamping force evenly across the conductor cross-section rather than concentrating it at a single point. The V-bottom collar registers the wire in the correct position before the screw is tightened. Together, these features provide uniform conductor contact — critical when terminating stranded wire where uneven clamping causes individual strands to carry disproportionate current.
- Plated Steel Set Screw — Slotted Drive: The set screw is plated steel, which resists corrosion while delivering the torque needed to seat reliably against a copper conductor without deforming. The slotted drive is compatible with standard flathead screwdrivers — no proprietary bit required on the job site.
- Floating Tongue with 1/4-Inch Stud Hole: The floating tongue design allows the lug to align to the bus stud or terminal without requiring precise angular positioning during installation. The 1/4-inch stud hole fits standard mechanical lug mounting studs found on most panel bus assemblies and terminal blocks. One mounting hole keeps the footprint compact where panel real estate is tight.
- 600V / 90°C Rating — cULus Listed: Rated for up to 600 volts and 90°C conductor temperature, this lug meets the requirements for standard commercial power distribution circuits. The cULus listing confirms it has been independently tested and evaluated for use in both US and Canadian electrical installations — a baseline requirement for any inspection-ready installation on commercial electrical connector projects.
- Compact Physical Footprint — 1.55 in. × 0.64 in.: At 1.55 inches long and 0.64 inches tall, the CB70-14-190 fits in tight panel spaces where larger compression lugs won't clear adjacent terminals. If you're terminating in a crowded load center or a compact DIN-rail enclosure, these dimensions matter.
- 190-Piece Pack Quantity: The pack quantity is sized for contractors running multiple panels or multi-circuit termination projects. Buying in this quantity versus individual pieces typically reduces per-unit cost and eliminates the friction of mid-job re-ordering. For panel wiring and termination accessories, having surplus on hand is the professional default.
Integration and Compatibility
The CB70-14-190 is compatible with standard 1/4-inch terminal studs found on most commercial panelboards, bus bars, and mechanical lug terminal blocks from major enclosure and switchgear manufacturers. The 8-2 AWG wire range accommodates both copper and aluminum conductors in that size range — verify local code and manufacturer guidance for aluminum terminations. The cULus listing makes it suitable for installations governed by the NEC and CEC. For electrical panel installations requiring a traceable, code-listed mechanical lug at this conductor size, the CB70-14-190 fits directly into standard procurement workflows.
Frequently Asked Questions
Q: What wire sizes does the CB70-14-190 accept?
A: The CB70-14-190 accepts conductors in the 8-2 AWG range, covering both branch-circuit and light feeder applications. Verify conductor type compatibility (copper vs. aluminum) with local code requirements before installation.
Q: What is the voltage rating for the CB70-14-190?
A: The CB70-14-190 is rated for use up to 600 volts, making it suitable for standard commercial power distribution circuits.
Q: Is the CB70-14-190 cULus listed?
A: Yes. The CB70-14-190 is cULus Listed, meaning it has been evaluated for use in both US and Canadian electrical installations in accordance with applicable safety standards.
Q: What is the temperature rating of the CB70-14-190?
A: The CB70-14-190 carries a 90°C temperature rating, consistent with standard THHN/THWN-2 and XHHW-2 conductor insulation ratings used in commercial wiring.
Q: How many lugs come in a pack of CB70-14-190?
A: Each order of CB70-14-190 includes 190 individual lugs, sized for contractors and facilities teams working on multi-circuit panel terminations.
Q: What stud hole size does the CB70-14-190 use?
A: The floating tongue has a 1/4-inch stud hole, compatible with standard mechanical lug mounting studs on most commercial panelboards and terminal blocks.
The CB70-14-190 is one of those components that doesn't get discussed until a termination fails an inspection — and then it gets discussed a lot. The floating tongue and internal pressure bar on this lug aren't marketing copy; they're the reason the clamping force distributes evenly across stranded conductors in the 8-2 AWG range rather than crushing the outer strands and leaving the core loose. For a 90A-rated connection in a 600V circuit, that distinction is load-bearing.
Technical Highlights:
- Electrolytic Copper Body: Minimizes contact resistance at the termination junction — at 90A continuous load, a high-resistance connection generates measurable heat; electrolytic copper keeps that margin where it belongs.
- 8-2 AWG Wide Wire Range: One SKU covers the conductors most commonly pulled in commercial branch and light feeder work — fewer line items to manage, fewer substitution errors on the job.
- 90°C / 600V Rating, cULus Listed: Matches directly to THHN/THWN-2 conductor ratings and satisfies inspection requirements for both NEC and CEC jurisdictions without additional documentation.
Deployment Considerations:
- The 1/4-inch stud hole works with the majority of commercial panelboard bus studs, but verify stud diameter before ordering for less-common terminal block assemblies — a mismatched hole forces rework that a 190-piece pack won't help.
- The slotted set screw requires proper torque to seat correctly; under-torqued connections in high-vibration environments (mechanical rooms, rooftop equipment) can loosen over time — follow Panduit's published torque spec for the conductor size being terminated.
For commercial electrical contractors running multi-circuit panel terminations — particularly in tenant buildouts, data center PDU wiring, or light industrial motor control centers — the CB70-14-190's pack quantity and wide wire range make it a practical stocking item that handles the majority of termination scenarios without reaching for a second SKU.
