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Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Material Of Conductor:
- Copper
- Product Group:
- Grounding & Bonding
- Product Type:
- Mechanical Grounding
- Selling Unit Of Measure:
- each
- Standards:
- UL E9809, CSA 6591
- Type2:
- Grounding devices or assemblies
- Department:
- Electrical
- Product Subgroup:
- Grounding Devices
Blackburn SP2DL – Frequently Asked Questions
1) What wire sizes does the Blackburn SP2DL service post connector take?
The SP2DL is a double-conductor service post that accepts 5 through 10 AWG stranded and 4 through 10 AWG solid conductors. Two wires land in the post, so you can bond a service ground plus a bonding jumper without adding a second lug.
2) Can I use the SP2DL with aluminum conductors?
The SP2DL is specified for copper conductors. If your grounding electrode conductor or bonding run is aluminum, use a connector rated AL9CU or aluminum-specific instead, otherwise you have a dissimilar-metal connection that will not pass inspection.
3) Is the Blackburn SP2DL a mechanical connector or a compression lug?
Mechanical. It is a set-screw style service post, so it installs with a hand tool and no crimper or die set, and the conductors can be backed out and re-landed later. A compression lug is the choice where you want a permanent, non-reversible termination.
4) Does one SP2DL cover both the grounding electrode conductor and a bonding jumper?
Yes, that is the point of the double version. Two separate conductor ports let you land a grounding electrode conductor and a bonding jumper on one post rather than stacking two single connectors on the same pad.
5) Will the SP2DL work for a 12 AWG ground wire?
No. The smallest conductor it accepts is 10 AWG, solid or stranded. For 12 AWG you need a smaller-range grounding connector; forcing an undersized wire into this post will not give a reliable clamp.
6) Is the Blackburn SP2DL sold individually or in a box?
It is sold each, so quantity ordered equals connectors received. Useful if you are stocking a service truck rather than buying a contractor pack.
7) Where is the Blackburn SP2DL made, for buy-local or bid documentation?
Country of origin is Mexico. Worth noting if you are submitting origin paperwork on a government or institutional job.
How fast can I get the Blackburn SP2DL 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 SP2DL come with a warranty?
Absolutely. The Blackburn SP2DL 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 SP2DL?
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 SP2DL 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.