You may also like
No4/0-No2/0 SRVICE WEDGE CLMP,EA
Manufacturer Resources
Product Specs
- Connection Type:
- Tension
- Country Of Origin:
- Mexico (MX)
- Insulation Material:
- None
- Number Of Conductors:
- 1
- Product Group:
- Wire & Cable Management
- Product Type:
- Aluminum Service Wedge Clamp
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Bare
- Type2:
- Cable gland connector
- Voltage Rating:
- 35 kV
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- Length 12-3/4 in
- Installation Category:
- Yes
- Product Material:
- Aluminum
Blackburn W401-1 – Frequently Asked Questions
1) What conductor sizes does the Blackburn W401-1 service wedge clamp take?
The W401-1 is sized for 4/0 through 2/0 conductor, which is the run/tap range called out in its description. Outside that range the wedge will not seat correctly, so step to a different W-series clamp for smaller service drops or larger parallel feeders.
2) Is the Blackburn W401-1 wedge clamp rated for medium voltage work?
It carries a 35 kV voltage rating, so it is suitable for medium voltage service connections as well as standard secondary service work.
3) Does the W401-1 come insulated or do I need to cover it after installation?
It ships bare. The insulation material is listed as none and the surface finishing is bare aluminum, so any insulating or covering over the finished connection has to be supplied separately.
4) Can I use an aluminum wedge clamp like the W401-1 on copper conductors?
The body is aluminum, which is what a utility service drop connection normally calls for. Aluminum-to-copper connections need a connector rated for dual metals and an appropriate inhibitor; nothing in the W401-1 data designates it for copper, so treat it as an aluminum service connector.
5) How does a wedge clamp connection differ from a compression or bolted connector?
A wedge clamp is a tension connection: a spring C-body and driven wedge hold constant pressure on the conductors rather than relying on bolt torque or a hydraulic crimp. That means no torque wrench and no die set on the pole, and the spring keeps pressure as the conductors expand and contract under load.
6) How long is the Blackburn W401-1 clamp, and will it clear my other service connections?
Overall length is 12-3/4 inches. On a crowded weatherhead or riser, lay that out before you commit, because staggered taps need enough separation along the conductor for each clamp body.
7) Is the W401-1 sold individually or in a box?
It sells each, one clamp per unit. Order one per conductor connection, so a three-conductor service drop needs three.
8) How many conductors does one W401-1 wedge clamp handle?
One. The clamp is built for a single conductor connection, so on a multi-conductor service each phase and the neutral each get their own clamp.
How fast can I get the Blackburn W401-1 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 W401-1 come with a warranty?
Absolutely. The Blackburn W401-1 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 W401-1?
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 W401-1 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.