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NON-INS - TUB RING 4/0AN-250M 5/16
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Product Subgroup:
- General Terminals
- Product Type:
- Non-Insulated Ring Terminal
- Standards:
- UL E9809
- Voltage Rating:
- 600 V
- Wire Size:
- 4/0AN-250 kcmil
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Metallic
- Product Material:
- Copper
Sta-Kon M972 – Frequently Asked Questions
1) What wire size does the Sta-Kon M972 ring terminal accept?
The M972 non-insulated ring terminal takes conductors from 4/0 AWG up to 250 kcmil. That covers the big feeder and service conductors, so if you are landing anything smaller than 4/0 you need a different barrel size, not this lug.
2) Will the Sta-Kon M972 lug bolt to a 5/16 inch stud?
Yes. The M972 is built with a 5/16 inch ring tongue, so it lands on a 5/16 inch stud or bolt. A larger stud will not pass through the tongue, so match the hole to the hardware on your bus bar or breaker lug.
3) Can I use the Sta-Kon M972 on aluminum conductors?
No. The M972 is a copper lug intended for copper conductors in the 4/0 to 250 kcmil range. For aluminum or mixed-metal terminations you want a lug specifically listed AL9CU; this one is not that part.
4) Is the Sta-Kon M972 terminal rated for 600 volt circuits?
600 V is the stated rating on the M972, which puts it in normal commercial and industrial power distribution territory. It is also UL recognized under file E9809.
5) Does the Sta-Kon M972 lug need to be insulated after crimping?
It ships bare. The M972 is a non-insulated copper tubular lug with a metallic finish, so if the termination needs covering you add heat shrink or a boot separately. Nothing insulating is supplied with the terminal.
6) What is the difference between a tubular ring lug like the M972 and a split-bolt or mechanical lug?
The M972 is a compression lug: the conductor goes into the copper tube and you crimp it, then the 5/16 ring tongue bolts to a stud or pad. A mechanical set-screw lug can be installed with a hand tool and re-opened, but a crimped tubular ring gives a permanent, low-resistance termination and a flat bolt-down face. If you do not own a hydraulic or battery crimper sized for 4/0 to 250 kcmil, go mechanical instead.
How fast can I get the Sta-Kon M972 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 M972 come with a warranty?
Absolutely. The Sta-Kon M972 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 M972?
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 Sta-Kon M972 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.