Burndy manufactures a broad range of grounding, bonding, compression, and mechanical connectors. Parts that look similar may be designed for different conductor materials, wire ranges, stud patterns, tooling, and installation methods.
This guide explains the major Burndy product families stocked by Breakers Now and the information needed to narrow down the correct connector.
Burndy products available from Breakers Now
The in-stock assortment includes:
- Mechanical grounding connectors and terminals
- Copper and aluminum compression lugs
- Long-barrel compression splices
- HYGROUND irreversible grounding connectors
- Ground-rod and ground-grid connectors
- C-shaped compression taps and related connector hardware
- Compression pin adapters and large-conductor terminals
Visit the Burndy collection to see current inventory.
Mechanical connectors
Mechanical connectors use set screws, bolts, or clamping hardware to secure the conductor. They can be useful where installation accessibility, conductor range, or removability makes a mechanical connection appropriate.
Before selecting one, confirm:
- Copper, aluminum, or dual-rated conductor compatibility
- Solid, stranded, or compact conductor construction
- Minimum and maximum conductor range
- Number of conductors
- Stud size and number of mounting holes
- Required installation torque
- Temperature, voltage, and listing requirements
An example from current stock is the Burndy KA40U aluminum universal terminal.
Shop Mechanical Grounding Connectors.
Compression lugs and terminals
Compression terminals create a permanent connection by crimping the barrel around the conductor with a compatible tool and die. The connector, conductor, die, tool, and number of crimps form a system; matching the wire size alone is not enough.
Burndy compression lug part numbers can indicate conductor size, barrel length, material, number of mounting holes, stud size, and hole spacing. Verify the complete catalog number and installation instructions.
The stocked YGA282N two-hole HYGROUND grounding lug is one example of an irreversible compression grounding terminal.
Compression splices
Compression splices join conductors end to end. Long-barrel designs provide an extended crimp area, but require the correct strip length and crimp pattern. Confirm conductor material, conductor size, voltage class, temperature rating, barrel length, inspection features, and compatible tooling.
Current stock includes products such as the Burndy YS34 500 kcmil long-barrel copper splice.
HYGROUND grounding connectors
Burndy HYGROUND is an irreversible compression grounding system used for grounding grids, equipment grounding, cable-to-rod connections, cross-grid connections, taps, splices, and terminations. These connectors are intended to be installed with the specified tooling and die combination so the completed connection can meet its required listing and performance.
Common HYGROUND-style applications include:
- Grounding conductor to equipment or structural steel
- Copper conductor to ground rod
- Ground-grid cross connections
- Parallel taps and branch connections
- Direct-burial grounding systems when the specific connector is listed for that use
The YGHR29C34 ground-rod compression connector is an example from the current inventory. Always verify conductor range, rod diameter, burial rating, and installation tooling.
Copper vs. aluminum conductors
Do not assume that a connector suitable for copper is also suitable for aluminum. Look for the exact material marking and listing, such as copper-only or AL/CU suitability. Aluminum applications may require a tin-plated connector, factory-applied compound, specific conductor preparation, and exact torque or crimp instructions.
Never mix conductor materials or apply joint compound unless permitted by the connector manufacturer and installation instructions.
Why tool and die compatibility matters
A compression connector is only one part of the installation system. The tool and die must match the connector and conductor. An incorrect die can produce an under-crimped or over-crimped connection, damage the conductor, or prevent the installation from meeting the connector’s listing.
Before installation, verify:
- Connector catalog number
- Conductor material, size, and stranding
- Approved compression tool
- Required die index or color code
- Number and location of crimps
- Strip length and conductor preparation
- Inspection and marking requirements
Burndy connector selection checklist
- Application: grounding, bonding, splice, tap, or termination
- Conductor material and construction
- Conductor size or range
- Number and orientation of conductors
- Mechanical or irreversible compression connection
- Stud size, hole count, and hole spacing
- Ground-rod diameter or structural member dimensions
- Indoor, outdoor, direct-burial, or corrosive environment
- Voltage, temperature, and listing requirements
- Compatible tool, die, and installation sequence
Shop Burndy products at Breakers Now
Breakers Now stocks hundreds of Burndy grounding and connector products, including hard-to-find compression lugs, splices, mechanical terminals, and ground-rod connectors.
Shop Burndy Products, browse the Grounding collection, or narrow your search through Compression Connectors and Mechanical Grounding Connectors.
For identification help, send the complete catalog number, conductor size and material, connection type, and clear photographs of the existing connector.
Hard to find, easy to buy.
Safety note: Grounding and power connectors must be selected and installed as a complete listed system. Follow the manufacturer’s instructions for conductor preparation, torque, tooling, dies, crimp sequence, inspection, and environmental suitability.