NSi Industries TM-OB-500J Prem...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$72,500.00
NSi Industries TM-OB-500J Premium Wire Connectors in Orange & Blue rated for 22-12 AWG |500 Pack

NSi Industries TM-OB-500J Premium Wire Connectors in Orange & Blue rated for 22-12 AWG |1000 Pack

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Model: NSITM-OB-500J

In Stock (leaves warehouse same day if ordered before 3pm ET)

$72,500.00
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Premium Wire Connectors in Orange & Blue rated for 22-12 AWG |500 Pack

  • Features

    • Ergonomic, rounded wing design provides a comfortable grip and increased torque ability
    • Unique quick-bite spring provides secure gripping of conductors for solid, secure connections
    • Flame retardant UL 94V-2 thermoplastic shell provides excellent electrical insulation
    • Pre-twisting of wires not necessary
    • Zinc-plated springs for low contact resistance

Manufacturer Resources

Product Specs

Product Type:
Wire Connector
Department:
Electrical
Product Group:
Wiring Devices
Pack size (unit):
500
Product Subgroup:
Wire Nuts & Connectors
Product Color:
Orange
Voltage Rating:
600V
Product Material:
Thermoplastic

NSi NSITM-OB-500J – Frequently Asked Questions

1) What wire sizes do the NSi TM-OB-500J twist-on connectors handle?
The NSi TM-OB-500J connectors are rated for 22 through 12 AWG conductors, which covers everything from low-voltage thermostat and control wire up through standard 12 AWG branch circuit conductors. They are rated to 600V.
2) Are these NSi connectors flame retardant for use in enclosed junction boxes and fixtures?
The shell is a flame retardant UL 94V-2 thermoplastic, which is the insulating body around the spring. Rated 600V.
3) Will these work on a 277V lighting circuit?
Yes. At a 600V rating, the TM-OB-500J connectors cover 120V, 208V, 240V and 277V building circuits, so they are fine for commercial lighting whips and ballast or driver makeups within the 22-12 AWG range.
4) Do I need to pre-twist the conductors before installing these NSi wire nuts?
No pre-twisting required. The quick-bite spring inside the connector grips the conductors as you turn it on, so you can strip, align, and drive the nut straight onto the bundle. That saves a step on every splice, which adds up fast in a panel or a fixture box full of makeups.
5) How many connectors come in the NSi TM-OB-500J pack?
500 connectors per pack, in a mix of orange and blue. That is a jobber-size box intended for crews doing repetitive makeups rather than a one-off repair, and it is one reason facilities and MRO buyers standardize on a single two-color box instead of stocking several small jars.
6) What is the difference between the orange and the blue connectors in this NSi box?
Color on twist-on connectors marks the conductor combination range, not a difference in construction. Both colors in the TM-OB-500J box share the same quick-bite spring, zinc-plated spring contact and UL 94V-2 thermoplastic shell, and the box as a whole covers 22-12 AWG. Pick the color that matches the number and gauge of conductors in your splice.
7) Are the springs in these NSi wire nuts plated, or will they corrode?
Zinc-plated steel springs, specified for low contact resistance at the splice. The plating is what keeps the metal-to-conductor interface clean over time rather than relying on bare spring steel.
8) Do these NSi connectors have wings, or are they smooth-bodied?
Winged. The TM-OB-500J uses a rounded wing shell so you can drive it down by hand with more torque and less thumb fatigue than a smooth barrel nut. That matters on a long day of 12 AWG makeups, where the smooth types usually push installers toward a nut driver.
How fast can I get the NSi NSITM-OB-500J 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 NSi NSITM-OB-500J come with a warranty?
Absolutely. The NSi NSITM-OB-500J 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 NSi NSITM-OB-500J?
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 NSi NSITM-OB-500J 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.
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