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NON-INS TUB RING 1AN-1/0 1/4 90 DEG
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Product Subgroup:
- Lugs & Terminals
- Product Type:
- 90 Degree Ring Terminal
- Voltage Rating:
- 600 V
- Wire Size:
- 1AN-1/0
- Department:
- Electrical
- Product Group:
- Wire Connectors & Terminals
- Product Material:
- Copper
Sta-Kon H971U – Frequently Asked Questions
1) What wire sizes does the Sta-Kon H971U ring terminal accept?
The Sta-Kon H971U is sized for 1 AWG through 1/0 wire (listed as 1AN-1/0). It's a tubular barrel lug, so the stranded conductor seats fully into the barrel before crimping. If your conductor is 2 AWG or smaller, or 2/0 and up, you need a different barrel size - an oversized barrel won't give you a reliable crimp.
2) Is the H971U copper or aluminum, and can I land it on aluminum conductor?
The barrel is copper, so it's intended for copper conductor. Crimping copper-only barrels onto aluminum wire invites galvanic corrosion and a hot joint - for aluminum feeders use a lug marked AL9CU or AL-rated instead.
3) Why would I choose a 90 degree ring terminal instead of a straight one?
The 90 degree bend turns the conductor at a right angle to the stud face, which is what you want when the cable runs parallel to the panel wall or busbar and you don't have the gutter depth to loop a straight lug around. A straight tongue terminal needs room to bend the cable itself, and on 1 AWG to 1/0 copper that bend radius is substantial. The H971U does the turn for you in the fitting.
4) Is the Sta-Kon H971U insulated, and do I need to sleeve it?
It's a non-insulated terminal - bare copper barrel and tongue, no nylon or vinyl sleeve. For 600 V work in a panel or enclosure you'll typically slide adhesive-lined heat shrink over the barrel and the conductor after crimping, or rely on clearance per your installation. Order the shrink separately; nothing is supplied with the terminal.
5) Can I use the H971U on a 480 V three-phase feeder?
Yes. The H971U carries a 600 V rating, which covers 120/240 V, 277/480 V, and 600 V class circuits. That rating is the terminal's limit, not the insulation system around it, so the conductor and any sleeving still have to be rated for the circuit.
6) Do I need a special crimp tool for the Sta-Kon H971U?
A 1 AWG to 1/0 copper tubular barrel needs a hydraulic or heavy mechanical compression tool with the matching die - hand crimpers sized for insulated terminals won't develop the force. No tool, die, or hardware ships with the terminal; the stud nut and washer come from the equipment you're landing on.
7) What is the Sta-Kon part number and where is it made?
Order it as Sta-Kon H971U. Country of origin is Mexico. That's the identifier to quote for a non-insulated 90 degree tubular ring terminal, 1 AWG to 1/0, 1/4 inch stud.
How fast can I get the Sta-Kon H971U delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 H971U come with a warranty?
Absolutely. The Sta-Kon H971U 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 H971U?
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installation tips, and troubleshooting. Contact Us
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