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AL Comp Pin Term PT 336.4-350 STR
Manufacturer Resources
Product Specs
- Connection Type:
- Compression
- Country Of Origin:
- United States (US)
- Insulation Material:
- None
- Product Group:
- Wire Connectors & Terminals
- Product Type:
- Pin Terminal
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Bare, Pin Tin-Plated.
- Type2:
- Wire connectors
- Department:
- Electrical
- Product Subgroup:
- Lugs & Terminals
- Product Size:
- 2-1/2 inch pin
- Product Material:
- Aluminum, Tin-Plated Copper Pin
Blackburn PTB 350-2.5 – Frequently Asked Questions
1) What conductor size does the Blackburn PTB 350-2.5 pin terminal take?
The PTB 350-2.5 is sized for 336.4 through 350 kcmil stranded aluminum conductor. It is a compression fitting, so the barrel is crimped onto the cable with a die-type tool rather than tightened with a setscrew. Cable outside a 336.4 to 350 kcmil range needs a different pin terminal in the series.
2) Why use a pin terminal instead of landing aluminum cable straight into the breaker lug?
A pin terminal converts a large stranded aluminum conductor into a solid round pin so it can land in a mechanical lug or terminal that will not accept the full stranded cable, which is common on panel mains, switch terminals and motor starters. The PTB 350-2.5 takes 336.4 to 350 kcmil aluminum and presents a 2-1/2 inch pin for that landing.
3) Can I use this aluminum pin terminal on copper cable of the same size?
The compression barrel on the PTB 350-2.5 is aluminum and the part is specified for 336.4 to 350 kcmil stranded aluminum. For copper conductor, use a pin terminal with a copper barrel rated for the copper size you are landing rather than this one.
4) Is the pin on this Blackburn compression terminal copper or aluminum?
It is a dual-metal part: the compression barrel is aluminum for the incoming aluminum conductor, and the pin itself is tin-plated copper. The barrel ships bare while the pin is tin plated, so the copper never contacts the aluminum lug or bus directly.
5) Does the PTB 350-2.5 pin terminal come insulated or do I need to tape and sleeve it?
There is no insulation on the terminal. The barrel is bare aluminum, so the connection has to be insulated in the field with heat shrink or tape where the installation requires it, and clearances to adjacent phases and the enclosure have to be maintained as installed.
6) What is the exact part number to order for a 350 kcmil aluminum pin terminal with a 2-1/2 inch pin?
Blackburn PTB 350-2.5. That is the manufacturer part number as marked, covering 336.4 to 350 kcmil stranded aluminum with a 2-1/2 inch tin-plated copper pin.
7) Is the Blackburn PTB 350-2.5 sold individually or in a bag?
It is sold each, one terminal per unit, so quantities for a three-phase plus neutral landing are ordered as the count you need. It is a US-made part.
How fast can I get the Blackburn PTB 350-2.5 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 PTB 350-2.5 come with a warranty?
Absolutely. The Blackburn PTB 350-2.5 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 PTB 350-2.5?
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