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NON-INS MALE-250 TAB 22-18 LEN .68
Manufacturer Resources
Product Specs
- Country Of Origin:
- United States (US)
- Product Subgroup:
- Disconnects
- Product Type:
- Non-Insulated Male Disconnect
- Standards:
- UL E66716
- Voltage Rating:
- 600 V
- Wire Size:
- 22-18 AWG
- Department:
- Electrical
- Product Group:
- Wire Termination
- Product Color:
- Metallic
- Product Material:
- Brass
Sta-Kon A251 – Frequently Asked Questions
1) What wire gauge does the Sta-Kon A251 male disconnect crimp onto?
The Sta-Kon A251 is built for 22 to 18 AWG stranded wire. Anything heavier, like 16-14 AWG, will not seat in the barrel and won't crimp to a reliable pull strength, so step up to a terminal rated for that range instead.
2) Will the A251 male disconnect mate with a standard .250 quick-disconnect female terminal?
Yes. The A251 carries a 250 tab, which is the common 1/4 inch quick-disconnect blade size, so it plugs into any standard .250 series female disconnect or push-on receptacle. The overall length of the terminal is .68 inch.
3) Is the A251 insulated, and does that mean I need to sleeve it?
It is a non-insulated male disconnect, bare brass with a metallic finish. There is no nylon or vinyl sleeve on the barrel, so if the connection sits where it could touch a chassis, another terminal, or a grounded surface, plan on heat shrink or an insulating sleeve over it. If you want the insulation built in, order an insulated male disconnect in the same 22-18 AWG range instead.
4) Can I use the Sta-Kon A251 disconnect on a 480V control circuit?
The A251 is rated 600 V, so a 480 V circuit is within rating. It is UL recognized under file E66716. Keep in mind it is non-insulated, so the enclosure or sleeving has to provide the insulation at that voltage, not the terminal.
5) Do I need a special crimper for a non-insulated brass disconnect like the A251?
Non-insulated terminals need a non-insulated crimp die, the kind with the indenter nest, not the color-coded insulated barrel die. Using an insulated-terminal crimper on the bare brass barrel of the A251 deforms it without forming a proper indent, which is the usual cause of pull-out failures on 22-18 AWG terminations.
6) Is the Sta-Kon A251 made in the USA for Buy American or government spec jobs?
Country of origin on the A251 is the United States, which is what institutional and government procurement typically needs documented. It also carries a UL file number, E66716, for submittal packages.
7) Should I use a male disconnect or a ring terminal for a motor or appliance connection?
A male disconnect like the A251 is for connections you expect to break: swapping a blower motor, a limit switch, a ballast. It plugs into a mating .250 female and pulls apart by hand. A ring terminal lands under a screw and stays put, which is what you want on a terminal block or a ground lug where vibration or a code-required mechanical connection is in play. For 22-18 AWG control wiring to equipment that gets serviced, the push-on male is the faster call.
8) What is the exact part number to order the 22-18 AWG non-insulated .250 male disconnect from Sta-Kon?
The manufacturer part number is A251. That is the Sta-Kon non-insulated male disconnect with a .250 tab, .68 inch length, for 22-18 AWG wire.
How fast can I get the Sta-Kon A251 delivered?
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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 A251 come with a warranty?
Absolutely. The Sta-Kon A251 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 A251?
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