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Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- Mexico (MX)
- Insulation Material:
- None
- Product Group:
- Wire & Cable Management
- Product Type:
- H-Type Compression Tap Connector
- Selling Unit Of Measure:
- each
- Standards:
- RUS Accepted
- Surface Finishing:
- Bare
- Type2:
- Wire connectors
- Wire Size:
- Main .528 to .414 inTap .204 to .258 in
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- 7/8 inch Length
Blackburn CF402-1 – Frequently Asked Questions
1) What conductor sizes does the Blackburn CF402-1 H-tap connector take on the main and the tap?
The CF402-1 is built for copper runs of 4/0, 3/0 and 2/0 on the main with a 2 or 4 AWG tap. In conductor diameter terms the main range is .528 to .414 inch and the tap range is .204 to .258 inch, so measure your stranded conductor OD if you are working with anything other than standard Class B copper building wire.
2) Can I use this H-tap connector on aluminum conductors?
No. The CF402-1 is a copper-only H-type tap. Running aluminum into a copper-bodied compression tap creates a dissimilar-metal joint, so for aluminum or mixed copper-to-aluminum taps you need a dual-rated connector instead.
3) Does the CF402-1 tap need to be crimped, or can it be tightened with a wrench?
Compression only. This is a crimped H-tap, not a mechanical set-screw connector, so it takes a hydraulic or battery crimp tool with the die matching the connector's die index. There is no bolt or screw to torque.
4) Does this Blackburn H-tap come insulated, or do I have to cover the joint myself?
It ships bare, with no insulation on the body. You insulate in the field, typically with a heat-shrink tap cover, a molded insulating cover sized for the connector, or tape build-up per your spec. Budget for that cover when you count material for the job.
5) How long is the crimp barrel on the CF402-1, and will it fit in a tight junction box or handhole?
The connector body is 7/8 inch long, so the finished crimp is short. Allow room beyond that for the crimp tool head to seat squarely on the connector and for the insulating cover you add afterward, which is usually the real space constraint in a crowded box or pedestal.
6) Is the Blackburn CF402-1 acceptable for rural electric utility work?
It is RUS Accepted, which is the acceptance utility and co-op crews look for on distribution and service material. That covers the connector itself; the insulating cover you apply over it is a separate item with its own acceptance.
7) Should I use an H-tap like this or a split-bolt connector for tapping a 4/0 feeder?
An H-tap such as the CF402-1 is the choice where you want a compact, permanent, crimped joint on a 4/0 through 2/0 main with a 2 or 4 AWG tap. A split bolt is mechanical, reusable and needs no crimp tool, but it is bulkier and depends on maintained torque. If you already have the crimp tool on the truck and the tap is permanent, the compression H-tap is the tidier joint at 7/8 inch of body length.
8) Is the CF402-1 sold individually or in a box?
Sold each, so you can order the exact count your tap schedule calls for rather than a full carton. Order one per tap connection, and remember each one also needs an insulating cover since the body is bare.
9) What is the manufacturer part number for this Blackburn copper H-tap, and where is it made?
The part number is CF402-1, from Blackburn, and it is manufactured in Mexico. That is the number to quote when you are matching an existing tap in the field or standardizing a job on one connector.
How fast can I get the Blackburn CF402-1 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 CF402-1 come with a warranty?
Absolutely. The Blackburn CF402-1 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 CF402-1?
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installation tips, and troubleshooting. Contact Us
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