3M 7000133403 3M™ Scotchlok™ Female Disconnect Vinyl Insulated, 50/bottle, MVI10-250DFX, 500/Case

The MVI10-250DFX takes 12 to 10 AWG stranded or solid copper, which is the 4 to 6 mm2 metric range. The yellow vinyl insulation is the standard color code for that gauge band, so if you're pulling a yellow terminal out of a mixed bin it should be going on 12-10 AWG. Barrel inside diameter is 0.128 inch, and the insulation sleeve will accept a wire whose outer insulation is up to 0.145 inch across.

Yes. The MVI10-250DFX is built to mate with a 0.25 inch (6.35 mm) wide male tab, which is the common quarter-inch spade found on motors, contactors, relays and HVAC blower terminals. If the tab on your equipment is 0.187 inch or 0.110 inch, this is the wrong size and it will not hold.

Rated to a maximum of 600 volts and an operating range of -40 to 221 degrees F (-40 to 105 degrees C). That covers standard line-voltage control and appliance work, rooftop and unconditioned mechanical spaces at the cold end, and hot motor and equipment enclosures at the top end. Worth noting: the vinyl sleeve is not flame retardant, so if your spec calls for a flame retardant insulator, this isn't the terminal.

It carries UL File Number E70512. It's also compliant with RoHS 2011/65/EU without exemption, which matters if you're supplying into an EU-bound assembly or a facility with a restricted substances policy.

Packaged 50 per bottle, 500 per case. The bottle format is what you want on a service truck, since it pours and reseals without the loose-bag mess. For an MRO crib stocking a full gauge range, the yellow bottle is the 12-10 AWG position.

The terminal is ETP copper with tin plating for corrosion resistance, and the description also cites brass for conductivity. The tin plate handles normal indoor and equipment-enclosure humidity. One thing it does not have is a corrosion-inhibiting grease fill, so for direct-burial, wet-location or coastal-exterior connections you want a grease-filled or heat-shrink sealed connector instead.

Each MVI10-250DFX runs 0.95 inch (24.13 mm) overall length, 0.37 inch overall width, and 0.23 inch overall diameter at the barrel. Crimp barrel length is 0.25 inch. That 0.95 inch figure is the number to work with when you're checking whether a row of terminated leads will fold back into a shallow control enclosure or a tight blower compartment.

A disconnect lets you pull a lead off a spade tab by hand, so a tech servicing a motor, transformer or control board can break the connection without a screwdriver and without disturbing the crimp. Ring and fork terminals land under a screw, which is the right call where the connection is permanent and vibration is a concern. The MVI10-250DFX is the female half, so it goes on the wire and slides onto the male tab that's already on the device. If your device needs the tab, you order the male half instead.

The female barrel is formed with dents and rolled edges that increase holding force on the male tab, and the crimp barrel is an interlocking butted-seam design that grips the conductor rather than relying on a single seam. The funnel-shaped PVC sleeve also guides strands in so you don't get a stray wire outside the barrel, which is the usual cause of a loose crimp that backs out under vibration.

Country of origin on the 7000133403 is the United States. That's the data point procurement asks for on federally funded and government MRO work, alongside the UL file number E70512.