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AL HTYPE COMP CONN 477-336 500-336
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 3 inch
- Installation Category:
- None
Blackburn WR889 – Frequently Asked Questions
1) What conductor sizes does the Blackburn WR889 H-tap connector take?
The WR889 is sized for a 477 to 336 main run with a 500 to 336 tap. Both sides are aluminum-bodied compression connections, so the conductor ranges are fixed by the die and the connector body, not adjustable. If your run or tap falls outside those, you need a different H-tap catalog number in the series.
2) Is the WR889 H-tap acceptable for a utility or RUS-funded distribution job?
Yes. The WR889 is RUS accepted and complies with ANSI C119.4, which is the standard that covers connectors for underground and aerial distribution circuits. That is usually what a utility or co-op inspector is looking for on a spec sheet.
3) Can I use an H-tap like the WR889 on copper conductors, or aluminum only?
The WR889 is an aluminum H-tap. Aluminum compression bodies of this type are normally supplied with an oxide-inhibiting compound for aluminum conductor work. If your run or tap is copper, or you are joining copper to aluminum, specify a connector rated for that combination instead rather than assuming this one covers it.
4) Do I need a hydraulic crimper for the Blackburn WR889, or can I use a mechanical tap instead?
The WR889 is a compression connector, so it needs a hydraulic or battery compression tool with the correct die. There is no bolt to torque. If you do not have compression tooling on the truck, a bolted or wedge-style tap is the alternative approach for the same job, but it will not meet a spec that calls specifically for a compression connection.
5) Does the Blackburn WR889 H-tap come pre-insulated or do I need to cover it?
It ships bare. The WR889 has no insulation on it, so on any energized application you cover it after crimping, typically with a pre-formed insulating cover or heat-shrink rated for the installation. Budget for that cover as a separate line item.
6) What temperature is the Blackburn WR889 compression tap rated to?
Operation up to 90 degrees C. That lines up with standard 90 C rated conductor insulation, so it will not be the limiting element on a typical 90 C conductor run.
7) How many conductors does one WR889 H-tap connect?
Two. One main run conductor sits in the larger channel and one tap conductor in the other, then the whole body is crimped closed. For a second tap off the same run you install a second connector further along.
8) How long is the Blackburn WR889 connector body, and will it fit in a tight enclosure?
The body measures 3 inches in length. Add clearance for the crimping tool head and for whatever insulating cover you put over it before you commit to a tight pedestal or handhole.
How fast can I get the Blackburn WR889 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 WR889 come with a warranty?
Absolutely. The Blackburn WR889 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 WR889?
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 WR889 from ZenSupply?
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and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.