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INS NYL RING TERM, 250MCM, 3/8, BLU
Manufacturer Resources
Product Specs
- Country Of Origin:
- Mexico (MX)
- Product Subgroup:
- General Terminals
- Product Type:
- Nylon Insulated Ring Terminal
- Standards:
- UL E9809
- Voltage Rating:
- 600 V
- Wire Size:
- 250 kcmil
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Blue
- Product Material:
- Copper
Sta-Kon RM737 – Frequently Asked Questions
1) What wire size does the Sta-Kon RM737 ring terminal take?
The RM737 is sized for 250 kcmil conductor. It is a one-size lug, so it won't grip smaller feeder sizes like 4/0 or 350 kcmil correctly, you need the matching barrel for whatever conductor you're terminating.
2) What stud size does the RM737 terminal bolt to?
It's a 3/8 inch ring tongue, so it lands on a 3/8 inch stud or bolt, panelboard neutral bar, bus stud, or equipment ground pad. The ring tongue means you have to pull the bolt completely out to install it, unlike a spade terminal.
3) Is the RM737 lug copper or aluminum, and can I put it on aluminum conductor?
The barrel is copper. Use it on copper conductor. For aluminum or copper-clad aluminum feeders you want a lug specifically marked AL9CU or AL7CU with the right compound, not this one.
4) Is the Sta-Kon RM737 rated for 600 volt circuits?
Yes, the insulation on this ring terminal is rated 600 V, which covers standard commercial and industrial branch and feeder work at 120/208, 277/480 and below.
5) Is this ring terminal UL listed?
It carries UL file E9809. That's the point institutional and MRO buyers usually need for a submittal or an inspector on a panel termination.
6) Do I need a special crimper for a 250 kcmil ring terminal like this?
Yes. A 250 kcmil copper barrel is well past hand-plier range, it takes a hydraulic or battery crimp tool with the die matched to the lug. A standard insulated-terminal hand crimper will not make a compliant connection on this size.
7) Why is this Sta-Kon terminal blue, and does the color mean a wire size?
The RM737 is blue, and on nylon insulated terminals the insulation color is the manufacturer's size code rather than a circuit identifier. Don't read the blue as the small-gauge blue used on 16-14 AWG insulated terminals, this is a 250 kcmil lug.
8) Is the insulation on the RM737 heat shrink or nylon?
Nylon insulated, not adhesive-lined heat shrink. Nylon gives you abrasion resistance and a tight funnel entry for the strands, but it is not a moisture seal, so for wet or direct-burial locations you'd add a separate adhesive-lined shrink sleeve over the barrel.
9) Where is the Sta-Kon RM737 made?
Mexico. That matters mainly for buyers tracking country-of-origin on government or federally funded procurement paperwork.
How fast can I get the Sta-Kon RM737 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 RM737 come with a warranty?
Absolutely. The Sta-Kon RM737 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 RM737?
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 RM737 from ZenSupply?
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