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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:
- 12 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Grey
- Product Material:
- Copper
Sta-Kon F2039 – Frequently Asked Questions
1) What wire size does the Sta-Kon F2039 ferrule take?
The F2039 is sized for 12 AWG conductor, which is the 4 mm2 metric equivalent called out in the part description. Strip length should match the barrel; the ferrule's overall length is .787 inch. Run it on stranded 12 AWG going into a screw or spring-cage terminal so the strands stay bundled and don't splay under the clamp.
2) Is the Sta-Kon F2039 ferrule UL recognized?
It carries UL file E489056. For panel builders and MRO buyers who have to show listed components on a control panel bill of materials, that file number is the reference to cite.
3) Is the grey insulated sleeve on this ferrule nylon or polypropylene?
Polypropylene. The F2039 is a polypropylene insulated ferrule with a grey sleeve over a copper barrel. The grey colour follows the common metric colour code for the 4 mm2 size, so an electrician can identify the conductor size on a crowded terminal strip at a glance.
4) Do I need a crimper for these ferrules, or can I use regular lineman's pliers?
They need a proper ferrule crimper. The F2039 is a copper barrel crimped onto the conductor, and a square or trapezoidal ferrule die is what forms the barrel evenly around all strands. Pliers deform the barrel, leave strands loose, and the insulated polypropylene sleeve will split. Buy the ferrule crimp tool alongside the terminals, it is not included.
5) Why use a ferrule on 12 AWG stranded instead of just landing the bare wire?
Stranded 12 AWG landed bare in a screw terminal spreads, loses a few strands outside the clamp, and loosens as the copper relaxes. The F2039 puts a crimped copper barrel around the full bundle so the screw bears on a solid pin, and the grey polypropylene sleeve gives strain relief at the wire entry. That is why ferrules are standard practice in control panels and machine wiring.
6) Where is the Sta-Kon F2039 ferrule made?
Germany. Country of origin on the F2039 is listed as Germany (DE), which matters if you are filling out country-of-origin documentation on a government or institutional panel build.
How fast can I get the Sta-Kon F2039 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 Sta-Kon F2039 come with a warranty?
Absolutely. The Sta-Kon F2039 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 F2039?
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product
selection,
installation tips, and troubleshooting. Contact Us
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