Burndy ASA250U Terminal Stacking Adapter, Al/Cu, 2-Slot, 250 kcmil

Burndy ASA250U Terminal Stacking Adapter, Al/Cu, 2-Slot, 250 kcmil

The Burndy ASA250U Terminal Stacking Adapter is a dual-rated Al/Cu accessory that lets electricians and panel builders stack additional copper or aluminum terminals onto a single connection point without re-terminating the existing conductor. This 2-slot adapter is designed for use with 2-hole or 4-hole copper or aluminum terminals, is rated for conductors up to 250 kcmil, and accommodates a maximum insulation outer diameter of .87". Because it is dual-rated for both aluminum and copper, the ASA250U gives installers flexibility to match whatever terminal and conductor combination a job calls for. It is a practical solution for adding terminal capacity at a lug, bus, or connection point while keeping the original termination intact.

Key Features

• Max Conductor Rating: Rated for conductors up to 250 kcmil, supporting high-capacity power terminations.
• Dual Al/Cu Rating: Dual-rated for use with either aluminum or copper conductors and terminals, adding installation flexibility on mixed-metal jobs.
• 2-Slot Stacking Design: The 2-slot body allows an additional terminal to be stacked at an existing connection point instead of requiring a new termination.
• 2-Hole or 4-Hole Terminal Compatibility: Works with 2-hole or 4-hole copper or aluminum terminals for broad compatibility with standard lugs.
• Insulation Clearance: Maximum insulation outer diameter of .87" for compatibility with a range of insulated conductor sizes.
• Tin-Plated Construction: Tin-plated for corrosion resistance and dependable, long-term electrical contact at the connection point.

Technical Specifications

• Product Type: Mechanical
• Rating: Dual Rated for Al/Cu
• Max Conductor: 250 kcmil
• Insulation OD: .87"
• Terminal Compatibility: 2-Hole or 4-Hole Copper or Aluminum Terminals
• Slots: 2-Slot

Typical Applications

• Aluminum and Copper Conductor Terminations
• Panelboard and Switchboard Connections
• Stacking Additional Terminals at Bus Bar and Lug Connections
• Commercial and Industrial Electrical Installations
• Electrical Maintenance, Retrofit, and Upgrade Terminations
• New Construction Panel and Switchgear Wiring

Why Burndy?

Burndy is a trusted name in electrical power connectors, and the ASA250U Terminal Stacking Adapter reflects that standard with its dual Al/Cu rating and tin-plated construction for dependable, corrosion-resistant connections. Its 2-slot design and 2-hole or 4-hole terminal compatibility make it a versatile addition to any electrician's or panel builder's toolkit for adding terminal capacity without compromising the original termination. Electricians and panel builders can rely on Burndy stacking adapters to help keep power connections secure, code-compliant, and built for long-term reliability.