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Burndy SCRULUG Pressure Bar Copper Lug, 1-Hole Tin-Plated
Model: BUR-P470179
Burndy SCRULUG Pressure Bar Copper Lug, 1-Hole, Tin-PlatedThe Burndy SCRULUG™ pressure bar lug is a mechanical copper lug family built for secure, code-compliant terminations across a wide range of...
Burndy
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$10.24
Burndy KPA4C Pressure Bar Copper Lug, 1-Hole, Tin-Plated
The Burndy KPA4C is a 1-hole pressure bar copper lug engineered to terminate copper conductors ranging from 14 AWG (Sol) to 4 AWG (Str). Marketed under Burndy's SCRULUG™ trade name, this terminal features a 1/4" stud hole and a single screw connection point, finished in tin plating for added corrosion resistance and a stable, low-resistance electrical connection. Each unit ships in a convenient 100-pack, making it well suited for panel shops, electrical contractors, and industrial facilities that need a dependable copper termination on hand for grounding, bonding, and general wiring connections in commercial and industrial electrical systems.
Key Features
- Wire Range: Accepts 14 AWG (Sol) through 4 AWG (Str) copper conductors, covering a broad range of common branch-circuit and feeder wire sizes.
- Solid Copper Construction: Copper body construction delivers high electrical conductivity, mechanical strength, and long-term reliability in demanding electrical environments.
- 1-Hole Pressure Bar Design: A single 1/4" stud hole allows the lug to be bolted directly to bus bars, ground bars, panelboards, or other equipment pads.
- Single Screw Termination: Equipped with 1 screw to secure the conductor firmly within the lug barrel for a dependable mechanical and electrical connection.
- Tin-Plated Finish: Tin plating protects the copper surface from oxidation and corrosion, helping preserve conductivity and connection integrity over the life of the installation.
- SCRULUG™ Trade Name: Part of Burndy's established SCRULUG™ line of screw-type copper lugs, a recognized design in the electrical trade.
- Bulk 100-Pack Packaging: Sold in quantities of 100 units per pack, reducing per-unit handling and reorder frequency for high-volume installations and stocking programs.
Technical Specifications
- Pack size (unit): 100
- Trade Name: SCRULUG™
- Wire Range: 14 AWG (Sol) - 4 AWG (Str)
- Stud Size: 1/4"
- Number of Holes: 1
- Number of Screws: 1
Typical Applications
- Electrical Panel and Equipment Grounding Connections
- Industrial and Commercial Copper Conductor Termination
- Switchgear, Panelboard, and Bus Bar Wiring
- Bonding Connections in Electrical Enclosures
- Maintenance, Retrofit, and New Construction Electrical Installations
Why Burndy?
Burndy is a well-known name in copper connector technology, and the KPA4C pressure bar lug reflects that focus with solid copper construction and a tin-plated finish designed to hold up under real-world electrical loads. The SCRULUG™ screw-type design, 1-hole configuration, and 1/4" stud sizing make the KPA4C a practical choice for electricians and panel builders who need a dependable copper termination for 14 AWG (Sol) through 4 AWG (Str) conductors, backed by the consistency of the 100-pack format for ongoing stocking needs.
Manufacturer Resources
Product Specs
- Trade Name:
- SCRULUG™
- Pack size (unit):
- 100
- Product Material:
- Copper
- list_batch:
- BURNDY-20260916
- Product Type:
- Pressure Bar Lug
- Department:
- Electrical
- Product Subgroup:
- Lugs & Terminals
Burndy KPA4C – Frequently Asked Questions
1) What wire sizes will the Burndy KPA4C lug take?
The KPA4C accepts copper conductors from 14 AWG solid through 4 AWG stranded, so one part covers most branch-circuit and small feeder terminations. If your conductor tops out at 8 AWG, the KPA8C is the other wire-size option in the same SCRULUG pressure bar family.
2) Will this lug bolt onto a 1/4 inch ground bar stud?
Yes. The KPA_C pressure bar lug has a single 1/4 inch stud hole, so it lands directly on a 1/4 inch bolt or stud in a ground bar, bus bar, panelboard, or equipment pad. One hole means it will rotate on a single fastener, so torque it against a flat pad rather than relying on it to resist twisting.
3) Can I use a copper lug like this on aluminum conductors?
No. The KPA_C SCRULUG is a copper-bodied lug rated for copper conductors only, 14 AWG solid to 4 AWG stranded. For aluminum or mixed AL/CU work you need a lug marked dual-rated AL9CU; substituting a copper-only terminal on aluminum wire is a connection failure waiting to happen.
4) How does a screw-type pressure bar lug compare to a crimp lug for panel work?
The KPA_C is a mechanical screw lug: one screw clamps the conductor in the barrel, so you terminate it with a hex driver and no dies, press, or crimp tool. That makes it the practical choice for field changes, retrofits, and shops that do not want to carry a crimper for every wire size. A compression lug gives a permanent, tamper-resistant termination and is what you want where vibration or repeated thermal cycling is a concern, but it is size-specific and needs the matching die.
5) Do I have to buy Burndy KPA lugs in bulk?
Yes, the KPA_C ships 100 units per pack. That format suits panel shops, stocking contractors, and MRO cribs standardizing on one copper termination across a facility. For a single fixture repair it is more lug than you need.
6) Can I use this lug for equipment grounding and bonding connections?
That is one of its main uses. The KPA_C is used for panel and equipment grounding connections, bonding inside enclosures, and terminating copper conductors onto switchgear, panelboard, and bus bar pads. The single 1/4 inch hole matches the tapped holes and studs on most ground bars in that equipment.
7) I have both 8 AWG and 4 AWG runs landing on the same ground bar. Do I need two different lugs?
Not necessarily. The KPA4C covers 14 AWG solid through 4 AWG stranded, so it handles both an 8 AWG and a 4 AWG conductor and lets you stock one item. The KPA8C exists if you are only working the smaller sizes and want a lug sized closer to the wire. Both share the 1-hole pressure bar design.
8) Is the tin plating necessary, or should I get a bare copper lug?
The tin plating on the KPA_C is there to keep the copper from oxidizing at the contact face, which is where resistance and heat build up over time. In damp enclosures, outdoor gear, or industrial atmospheres that matters. On a dry indoor panel bare copper works too, but tin-plated costs you nothing in conductivity and is the usual spec for grounding and bonding terminations that need to stay tight for the life of the building.
How fast can I get the Burndy KPA4C delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Burndy KPA4C come with a warranty?
Absolutely. The Burndy KPA4C is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Burndy KPA4C?
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