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by Burndy 

Catalog ID: ASA250U

Copper Stacking Adapter, 2 Slots, 250 kcmil, Al/Cu Rated, Tin Plated.

Features: The HYSTACK Adaptor Is Specially Designed To Allow Standard Terminals To Be Stacked On Two Or Four Hole NEMA Transformer Or Equipment Terminal Pads, HYSTACK Is Tin-Plated, High-Conductivity Aluminum To Provide Optimum Corrosion Resistance, Only Three Sizes Accommodate Terminals From 250 MCM Through 1000 MCM To Help Keep Costly Inventories To A Minimum, Height: 0.77 IN, Width: 1 IN

Product Details


Application For Aluminum And Copper Terminals
EU RoHS Indicator Yes
Installation Torque Recommended in-lb 480 LBS/in
Material Aluminum
Material - Hardware DURIUM™ Silicon Bronze
Physical Attribute - Number of Holes 2
Physical Attribute - Number of Screws 2
Physical Attribute - Screw Type Hexagonal Bolt
Plated Y
Plating Type Tin
Temperature Rating 194° F
Trade Name HYSTACK™
Type Stacking Adapters
UPC 781810521007
UPC 12 Digit 7818105210077


Dimension - Bolt Size inch 2.75 in
Dimension - Height fraction 7/9 in
Dimension - Height inch 0.77 in
Dimension - L Length Overall mm 20 mm
Dimension - Length Overall inch 0.78 in
Dimension - Outside Diameter inch 0.87 in
Dimension - Pad Width inch 1.00 in

Electrical Ratings

Rating - Minimum Voltage 600

Conductor Related

Conductor - AL Str Size 1/0 AWG;2/0 AWG;3/0 AWG;4/0 AWG;250 kcmil
Conductor - AL Str Size Range 1/0 AWG-250 kcmil
Conductor - Copper Str Size 1/0 ;2/0 AWG;3/0 AWG;4/0 AWG;250 kcmil
Conductor - Copper Str Size Range 1/0 -250 kcmil
Conductor Type
  • AL C Str-Size
  • CU C Str-Size

Certifications and Compliance

Certification - CSA Approved Yes
Certification - ETL No
Certification - UL Listed Direct Burial No
Certification - UL Recognized No
Certification - cULus No
Standards - RoHS Compliance Status CM
UL Listed Yes


Minimum Pack Quantity 1