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AL 2BLT CONN W/SPCR 4/0-6 9/16B
Manufacturer Resources
Product Specs
- Country Of Origin:
- India (IN)
- Outside Diameter:
- 9/16 in
- Product Group:
- Wire & Cable Management
- Product Type:
- Two-Bolt Connector
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809
- Type2:
- Mechanical connectors
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Material:
- Aluminum
Blackburn 2B40PW – Frequently Asked Questions
1) What wire range does the Blackburn 2B40PW two-bolt connector take?
The 2B40PW covers conductors from 4/0 through 6 AWG, so one part handles a service run and the smaller taps off it. It is an aluminum-bodied mechanical connector, which means it is suitable for aluminum or copper conductors within that range when used as a mechanical (bolted) splice rather than a compression lug.
2) Is the Blackburn 2B40PW UL listed?
Yes. The 2B40PW carries UL file E9809, which is the listing an inspector will look for on a bolted mechanical connector in a service or grounding application.
3) What does the spacer on the Blackburn 2B40PW do, and do I need it?
The W/SPCR in the 2B40PW designation means the connector ships with a spacer. The spacer fills the gap when you land a smaller conductor at the bottom of the 4/0 to 6 AWG range so the bolt pressure stays even across the run and the smaller wire is not crushed or left loose. Leave it in for small conductors, remove it when you are landing near the top of the range.
4) What size bolts are on the 2B40PW connector, and what clearance do I need in the box?
The bolt diameter on the 2B40PW is 9/16 inch. Allow for socket or wrench swing on a 9/16 head when you are planning clearance in a pull box, gutter, or meter can, since both bolts have to be torqued down with the conductors seated.
5) Should I use a two-bolt mechanical connector like the 2B40PW or a compression connector?
A two-bolt mechanical connector like the 2B40PW is the choice when you want a field-serviceable splice with hand tools only, no hydraulic crimper or die set. You can open it, re-land a conductor, and re-torque. A compression connector is the better pick where the splice is permanent, space is tight, or the spec calls out a crimped irreversible connection. For service taps, grounding electrode conductor connections, and panel work where a wire may be changed later, the bolted version is what most electricians keep on the truck.
6) Can I use the Blackburn 2B40PW to splice copper to aluminum?
The 2B40PW body is aluminum, which is the standard construction for dual-rated mechanical connectors used on aluminum and copper conductors. Confirm the AL9CU dual rating is stamped on the body of the piece you receive before landing copper against aluminum, and use the joint compound your spec requires on the aluminum conductor.
7) Is the Blackburn 2B40PW sold individually or in a box?
It is sold each, so you order the exact count of connectors the job needs rather than a carton quantity. Each unit is the complete connector with its spacer.
8) What is the exact manufacturer part number for this Blackburn two-bolt connector?
The part number is 2B40PW from Blackburn. The designation breaks down as a two-bolt connector, 4/0 top conductor size, with spacer, and a 9/16 inch bolt.
How fast can I get the Blackburn 2B40PW 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 2B40PW come with a warranty?
Absolutely. The Blackburn 2B40PW 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 2B40PW?
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