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Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Subgroup:
- General Terminals
- Product Type:
- Vinyl Insulated Fork Terminal
- Standards:
- UL E9809
- Voltage Rating:
- 600 V
- Wire Size:
- 12-10 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Yellow
- Product Material:
- Copper
Sta-Kon RC1157 – Frequently Asked Questions
1) What wire gauge does the Sta-Kon RC1157 fork terminal crimp onto?
The RC1157 is sized for 12-10 AWG stranded copper wire. That is the yellow color code on vinyl insulated terminals, so if you are pulling 14 or 16 AWG you want a blue 16-14 barrel instead, not this one. Crimping 12-10 AWG into the yellow barrel is what gives you the mechanical hold the terminal is rated for.
2) What screw or stud size does the RC1157 fork terminal fit?
The RC1157 fork tongue is made for a No. 10 screw or stud. The fork (spade) shape slips in around a terminal block screw that is only backed off, rather than having to come all the way out, which is why electricians use it on strip terminals and contactor blocks instead of a ring tongue.
3) Is the Sta-Kon RC1157 terminal UL listed for an inspected installation?
The RC1157 carries UL file E9809. If your inspector or spec sheet calls for a listed wire terminal on control and power connections, that file number is what you cite. Country of origin is the United States.
4) Is a fork terminal or a ring terminal the right choice for a terminal strip?
Use the fork. A fork tongue like the RC1157 slides in under a loosened No. 10 screw, so you can land or pull a conductor without fully removing the screw, which saves real time on a panel full of terminal blocks and on service work. Choose a ring tongue instead where vibration is a concern or where a spec requires a captive connection, since a ring cannot back off the screw.
5) What voltage is the Sta-Kon RC1157 insulated fork terminal rated for?
600 V. That covers standard commercial control wiring, lighting circuits, motor control panels and 480Y/277 distribution, so for most building and MRO work the insulation rating is not the limiting factor. The vinyl sleeve provides the insulation over the crimp barrel.
6) Can I crimp the RC1157 with ordinary pliers or do I need a terminal crimp tool?
Use a proper insulated-terminal crimp tool set to the yellow (12-10 AWG) nest. The barrel on the RC1157 is copper under a vinyl sleeve, and a plier squeeze deforms the sleeve without forming the barrel correctly, which costs you both the pull-out strength and the UL E9809 listed condition of the connection.
7) Can I use the Sta-Kon RC1157 on aluminum conductors?
No. The RC1157 barrel is copper and is sized for 12-10 AWG copper wire. Aluminum conductors need a terminal specifically marked AL or AL9CU along with the correct inhibitor compound, so pick a dual-rated lug for that work rather than this terminal.
8) What is the manufacturer part number for the yellow 12-10 AWG No. 10 fork terminal from Sta-Kon?
RC1157. That one number covers the whole configuration: vinyl insulated fork tongue, yellow 12-10 AWG barrel, No. 10 stud size, 600 V.
How fast can I get the Sta-Kon RC1157 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 RC1157 come with a warranty?
Absolutely. The Sta-Kon RC1157 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 RC1157?
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installation tips, and troubleshooting. Contact Us
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