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Manufacturer Resources
Product Specs
- Country Of Origin:
- Germany (DE)
- Product Subgroup:
- Ferrules
- Product Type:
- Polypropylene Insulated Ferrule
- Standards:
- UL E489056
- Wire Size:
- 2 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Red
- Product Material:
- Copper
Sta-Kon F2051 – Frequently Asked Questions
1) What wire size does the Sta-Kon F2051 ferrule take?
The F2051 is sized for 2 AWG conductor, which is the 35 mm2 metric equivalent called out in the part description. Strip the conductor, insert the stranded copper into the barrel, and crimp with a ferrule crimper sized for 35 mm2. It will not hold a smaller conductor properly, so step down to the correct ferrule size rather than doubling back strands.
2) Is the Sta-Kon F2051 ferrule UL recognized?
Yes. The F2051 carries UL file E489056. If your panel build or control cabinet has to show listed terminations on the inspection, that file number is what you cite on the submittal.
3) What is the barrel of the F2051 ferrule made of, and can I use it on aluminum conductor?
The barrel is copper, so the F2051 is intended for stranded copper conductor only. Crimping copper hardware onto aluminum creates a dissimilar metal joint that corrodes and loosens. For aluminum feeders you need a terminal specifically rated AL or AL/CU, not this ferrule.
4) Is the red color on the F2051 ferrule just cosmetic or does it indicate size?
Red on the F2051 is the insulation color on the polypropylene collar, and on ferrules the collar color is the size code. Here red corresponds to the 35 mm2 / 2 AWG barrel. In a panel where several gauges land on the same terminal block, that color is how an inspector or the next electrician confirms the right ferrule went on the right conductor without pulling it.
5) Why use a ferrule like the F2051 instead of landing bare stranded wire in a terminal block?
A ferrule gathers every strand into a solid copper sleeve so the screw clamps one body instead of loose strands. That stops stray strands shorting to the neighboring pole, keeps the connection from loosening as strands relax under pressure, and gives a repeatable torque. At 2 AWG the strand count is high enough that this matters on any control or distribution termination. Where a conductor needs a ring or spade on a stud rather than a clamp terminal, a ferrule is the wrong part.
6) What is the manufacturer part number to order the 2 AWG red Sta-Kon ferrule?
Order it as Sta-Kon F2051. That single MPN covers the 2 AWG / 35 mm2 red polypropylene insulated ferrule, with no separate finish or length suffix to specify.
7) How long is the crimp barrel on the Sta-Kon F2051?
The F2051 is a 1.26 length ferrule as described, which is the overall figure given for the part. Check that your terminal block's wire entry is deep enough to take the insulated collar plus barrel before you commit to a full reel of them, since a shallow block will leave the collar standing proud of the clamp.
8) Where is the Sta-Kon F2051 ferrule manufactured?
Germany. For agencies or institutional buyers with country-of-origin reporting on their purchase orders, the F2051 is declared DE.
How fast can I get the Sta-Kon F2051 delivered?
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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 Sta-Kon F2051 come with a warranty?
Absolutely. The Sta-Kon F2051 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 Sta-Kon F2051?
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