Burndy BISR250DB Unitap Direct...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$16.58
Burndy BISR250DB Unitap Direct Burial Insulated Splice Reducer

Burndy BISR250DB Unitap Direct Burial Insulated Splice Reducer

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Model: BISR2

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

$16.58
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Burndy BISR250DB Unitap Direct Burial Insulated Splice Reducer, Aluminum

The Burndy BISR250DB is a Unitap series direct burial, insulated in-line splice/reducer for 4/0 AWG-250 kcmil conductors. Dual rated for aluminum and copper, this two-port connector ships with an oxide inhibitor pre-installed for below-grade corrosion protection. It carries a 600V minimum voltage rating and is UL Listed to UL468A-468B for underground splicing work.

Key Features

  • Conductor Range: 4/0 AWG-250 kcmil, dual rated for aluminum and copper conductors.
  • Durable Construction: Aluminum body and hardware for corrosion-resistant performance.
  • Direct Burial Rated: Engineered for direct burial installation in underground splice applications.
  • Insulation: Plastisol insulation with an oxide inhibitor pre-installed against corrosion.
  • 2-Port In-Line Design: Two-port design secured with 2 screws, 5/8 screw size, 5/16 hex key, 360 installation torque.
  • Voltage Rating: 600V minimum voltage rating for underground electrical connections.
  • Finish: Unplated aluminum hardware and connector body.

Certifications & Compliance

  • UL Listed
  • Complies with Industry Standard UL468A-468B
  • RoHS Compliant

Technical Specifications

  • Ports: 2
  • Product Material: Aluminum
  • Plating: Unplated
  • Series: Unitap
  • UL Listed: Y
  • UPC: 781810288061
  • Width (in): 1.18
  • Insulation Type: Plastisol
  • Type of Plating: Unplated
  • CULUS: N
  • Number of Ports: 2
  • Length (in): 6.70
  • Type of Hardware: Aluminum
  • Product Description: In-Line Splice/Reducer, 2 Port, 4/0 AWG-250 kcmil, Al/Cu Rated
  • Aluminum Size (Range): 4/0-250 kcmil
  • Number of Screws: 2
  • Plated (Yes or No): N
  • Industry Standards: UL468A-468B
  • Screw Size: 5/8
  • CSA Certified: N
  • UL Recognized: N
  • Rated for Direct Burial: Y
  • Copper Solid Size (Range): N/A
  • Installation Torque: 360
  • Min Voltage Rating: 600
  • Hex Size (Key): 5/16
  • Height (in): 2.17
  • ROHS Compatible: Compliant
  • Conductor - AL Str Size Range: 4/0 AWG - 250 kcmil
  • Conductor - Copper Str Size Range: 4/0 AWG - 250 kcmil
  • Trade Name: UNITAP™

Typical Applications

  • Direct-Burial Underground Splice Connections
  • Underground Distribution and Service Entrance Wiring
  • Utility and Industrial Power Distribution Systems
  • Substation and Switchgear Conductor Connections
  • Below-Grade Electrical Installations

Why Burndy?

Burndy's Unitap BISR250DB pairs an aluminum body with a pre-installed oxide inhibitor and Plastisol insulation for long-term underground reliability. Its UL468A-468B listing and 600V rating support code-compliant splicing on 4/0 AWG-250 kcmil aluminum and copper conductors.

Manufacturer Resources

Spec Sheet

Product Specs

Wire Size:
4/0 AWG
Ports:
2
Plating:
Unplated
Series:
Unitap
UL Listed:
Y
UPC:
781810288061
Width (in):
1.18
Insulation Type:
Plastisol
Type of Plating:
Unplated
CULUS:
N
Number of Ports:
2
Length (in):
6.70
Type of Hardware:
Aluminum
Copper Stranded (Range):
4/0 AWG-250 kcmil
Aluminum Size (Range):
4/0-250 kcmil
Number of Screws:
2
Plated (Yes or No):
N
Industry Standards:
UL468A-468B
Screw Size:
5/8
CSA Certified:
N
UL Recognized:
N
Rated for Direct Burial:
Y
Installation Torque:
360
Min Voltage Rating:
600
Hex Size (Key):
5/16
Height (in):
2.17
ROHS Compatible:
Compliant
Connector Type:
In-Line
Conductor - AL Str Size Range:
4/0 AWG - 250 kcmil
Conductor - Copper Str Size Range:
4/0 AWG - 250 kcmil
Product Type:
Splice Reducer
Trade Name:
UNITAP™
Product Material:
Aluminum
list_batch:
BUR-20260916

Burndy BISR2 – Frequently Asked Questions

How fast can I get the Burndy BISR2 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 BISR2 come with a warranty?
Absolutely. The Burndy BISR2 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 BISR2?
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 BISR2 from ZenSupply?
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