You may also like
AL HTYPE COMP CONN 477-4/0 556-250
Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- Mexico (MX)
- Insulation Material:
- None
- Number Of Conductors:
- 2
- Product Group:
- Wire & Cable Management
- Product Type:
- H-Type Compression Tap Connector
- Selling Unit Of Measure:
- each
- Standards:
- RUS Accepted. Complies with ANSI C119.4 Specifications
- Temperature Range:
- up to 90 °C
- Type2:
- Wire connectors
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- Length 2 inch
- Installation Category:
- None
Blackburn WR835 – Frequently Asked Questions
1) What conductor sizes does the Blackburn WR835 H-tap connector take on the run and the tap?
The WR835 is sized for a main (run) range of 556 to 250 and a tap range of 477 to 4/0, per the product designation AL HTYPE COMP CONN 477-4/0 556-250. It is an aluminum H-type compression tap, so it makes a two-conductor connection, one run plus one tap. Verify your cable size falls in those ranges before crimping, since a compression body cannot be adjusted once it is pressed.
2) Can I use an aluminum H-tap like the WR835 on copper conductors?
The WR835 body is aluminum, intended for aluminum conductor connections. Aluminum-bodied H-taps are commonly supplied with an oxide-inhibiting compound for AL-to-AL work; for copper or mixed copper-to-aluminum taps you want a connector specifically rated AL/CU or a tinned copper H-tap in the matching size range. Putting bare copper into an aluminum-only body risks a dissimilar-metal connection.
3) Does the Blackburn WR835 meet ANSI C119.4 for underground and overhead distribution work?
Yes. The WR835 complies with ANSI C119.4 specifications and is RUS accepted, which is what utility and co-op specs typically call for on aluminum distribution taps. That makes it usable where a purchasing spec names RUS acceptance.
4) Is the WR835 a bolted tap or does it need a crimp tool?
It is a compression connector, not a mechanical bolted tap. You need a hydraulic or battery crimper with the correct die for the body; there are no set screws or bolts. If you want a reusable, wrench-installed tap for the same conductor range, look at a bolted aluminum tap connector instead.
5) What temperature is the WR835 H-tap rated for?
Rated for conductor operating temperatures up to 90 degrees C, which matches standard 90 C rated distribution and building cable. It ships with no insulation on the body, so the connection must be insulated or taped in the field where the application requires it.
6) How much room do I need in the enclosure or on the pole for this H-tap?
The WR835 body is 2 inches long. Allow for that plus your crimp tool head clearance around the conductor, since a compression H-tap needs the die to close fully on the body from both sides.
7) Is the Blackburn WR835 sold individually or in a bag?
Sold each, so order one per tap you are making. Crew estimating a feeder run should count taps, not splice kits.
8) What is the manufacturer part number and origin for the Blackburn aluminum H-tap 556-250 run?
Blackburn part number WR835, manufactured in Mexico. That is the number to quote on a submittal for the aluminum H-type compression tap covering a 556 to 250 run with a 477 to 4/0 tap.
How fast can I get the Blackburn WR835 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 Blackburn WR835 come with a warranty?
Absolutely. The Blackburn WR835 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 Blackburn WR835?
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 Blackburn WR835 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.