Burndy Vinyl-Insulated Copper ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$6.54
Burndy Vinyl-Insulated Copper Compression Butt Splice Connector

Burndy Vinyl-Insulated Copper Compression Butt Splice Connector

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Model: SP18BG25

In Stock (leaves warehouse same day if ordered before 3pm ET)

$6.54
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Burndy Vinyl-Insulated Copper Compression Butt Splice Connector

The Burndy vinyl-insulated copper butt splice family is built to join conductors across a range of small-gauge wire sizes, available in 22-18 AWG and 12-10 AWG configurations. Each version is machined from seamless copper for a continuous, high-conductivity current path, and features a funnel entry that guides stripped wire into the barrel along with a tin-plated finish that helps resist corrosion over the life of the connection. A vinyl insulation sleeve covers the completed compression joint, shielding the splice point from accidental contact and moisture while keeping the connection compact enough for tight enclosures, terminal blocks, and junction boxes. Whichever wire range you select, this is a straightforward, professional-grade way to make a dependable in-line splice on control, signal, lighting, and low-voltage power circuits.

Key Features

  • Wire Range Options: Available in 22-18 AWG and 12-10 AWG versions, covering small-gauge control, signal, and lighting circuit wiring through heavier low-voltage power conductors.
  • Seamless Copper Construction: A seamless copper barrel provides a continuous, high-conductivity current path with no weld seam to compromise the joint.
  • Funnel Entry Design: The funnel-shaped entry guides stripped conductors into the barrel, easing installation and reducing the chance of strand damage during insertion.
  • Compression-Style Connection: Engineered as a compression splice, delivering a mechanically secure, low-resistance joint between conductors once crimped.
  • Tin-Plated Finish: Tin plating over the copper barrel helps resist corrosion and oxidation, supporting long-term conductivity and connection integrity.
  • Vinyl Insulation Sleeve: A vinyl insulating cover shields the completed splice, helping guard against accidental contact and moisture intrusion after crimping.
  • Compact In-Line Profile: The butt-splice format keeps the finished connection low-profile, making it easier to route and manage inside crowded enclosures and junction boxes.

Technical Specifications

  • PDF: Spec Sheet: https://hubbellcdn.com/specsheet/BRDY-SP18BG25-SPEC-EN.pdf

Typical Applications

  • Wire Splicing and In-Line Termination
  • Control and Signal Wiring
  • Panel and Terminal Block Connections
  • Low-Voltage Electrical Repairs
  • Lighting and Junction Box Wiring
  • Commercial and Industrial Wiring Projects

Why Burndy?

Burndy is a well-established name in electrical connectors, and this butt splice family reflects that reputation with its seamless copper barrel, tin-plated finish, and funnel-entry compression design across both the 22-18 AWG and 12-10 AWG wire ranges. The combination of a continuous copper current path, corrosion-resistant plating, and a protective vinyl insulation sleeve makes it a practical choice for electricians and technicians who need a dependable, code-conscious way to join conductors. Whether you are repairing existing control wiring or building out new low-voltage circuits, this vinyl-insulated copper butt splice delivers a secure, corrosion-resistant connection built for professional electrical work.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Butt Splice
list_batch:
BUR-20260916
Product Material:
Copper
Finish:
Tin-Plated
Connection Type:
Compression
Department:
Electrical
Product Subgroup:
Splice Kits

Burndy SP18BG25 – Frequently Asked Questions

1) Which wire gauges does the Burndy vinyl-insulated butt splice cover?
Two wire ranges are offered: 22-18 AWG (MPN SP18BG25) and 12-10 AWG (MPN SP10BG25). Pick the barrel that matches the conductor you are joining, since a 22-18 barrel will not accept a 10 AWG conductor and a 12-10 barrel will not grip 22 AWG tightly enough to hold. For 16-14 AWG wire, neither of these two is the right splice.
2) Do I need a crimp tool for these Burndy butt splices, or can they be twisted on?
These are compression splices, so they have to be crimped. The barrel is joined to the conductor by a crimp tool sized for insulated terminals in the matching AWG range; there is no screw, twist, or solder option. Strip the conductor, seat it fully through the funnel entry into the barrel, and crimp each side.
3) Can I use these Burndy splices on aluminum wire?
No. The barrel is copper with tin plating, so it is a copper-to-copper connector. Aluminum conductors need a connector rated AL/CU or aluminum-specific, used with the correct compound; putting bare aluminum into a copper-only barrel invites galvanic corrosion at the crimp.
4) Is this butt splice okay for control and signal wiring in a panel?
That is exactly what the 22-18 AWG size is for. The vinyl sleeve covers the crimped joint so the splice can sit close to other conductors in a terminal block area or junction box without exposed metal, and the in-line butt format keeps the finished connection low-profile for routing inside a crowded enclosure. The 12-10 AWG size covers heavier low-voltage power runs and lighting circuits.
5) Will a tin-plated copper splice hold up in a damp or corrosive location?
The barrel is seamless copper with a tin-plated finish, which resists oxidation at the crimp and keeps contact resistance stable over time, and the vinyl sleeve helps keep moisture off the splice point. Treat it as corrosion-resistant hardware for normal indoor and enclosure use rather than a submersible or direct-burial splice, which needs a gel-filled or heat-shrink sealed connector instead.
6) Does a butt splice work for joining two wires end to end, or do I need a ring terminal?
A butt splice joins two conductors in line, one entering each end of the barrel, and that is all it does. If you are landing a wire on a screw, stud, or terminal block lug, you want a ring or fork terminal instead. Use the butt splice for repairing a cut conductor, extending a run, or splicing into existing control wiring.
7) Do the two wire sizes of this Burndy splice use different crimp dies?
Yes, they are different barrel sizes and each takes the die station matching its range. The SP18BG25 crimps in the 22-18 AWG station and the SP10BG25 in the 12-10 AWG station of an insulated-terminal crimp tool. Using the wrong station either under-crimps the joint or cuts the sleeve.
How fast can I get the Burndy SP18BG25 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 SP18BG25 come with a warranty?
Absolutely. The Burndy SP18BG25 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 SP18BG25?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Burndy SP18BG25 from ZenSupply?
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