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Red vinyl insulated fork terminal with copper barrel and tin finish

3M

3M MV18-6FLX Fork Terminal #6 Stud 18 AWG 1000 V Vinyl Insulated

SKU CH-49M7-55Y2D

Vinyl-insulated fork terminal for 18 AWG wire, #6 stud, 1000 V rating, crimp termination with brazed seam and funnel-entry barrel

  • Product typeElectrical Connectors
  • Rated for 1000 V electrical systems
  • 18 AWG wire fits small-gauge circuits
  • #6 stud size matches common terminal posts
  • Vinyl insulation withstands 221 °F operating heat
  • Brazed seam and funnel barrel ensure reliable crimp

18 AWG Vinyl-Insulated Fork Terminal

The 3M MV18-6FLX is a crimp-style fork terminal built for 18 AWG conductors and a #6 stud. Its vinyl insulation provides partial coverage and a red colour code for quick identification. The funnel-entry barrel helps guide the wire into the copper contact during installation. It is suited for panel work and control wiring where a secure, removable connection is required.

Sustained Load Behaviour

The copper contact with a tin finish maintains consistent conductivity at the rated 1,000 V. Maximum operating temperature is 221 Degrees F, so the terminal retains its mechanical grip and electrical integrity under continuous current. The brazed seam prevents the barrel from splitting during repeated thermal cycling. Partial insulation coverage leaves the crimp area visible for inspection after termination.

Interface Practical Limits

Termination is limited to a single 18 AWG wire crimped into the funnel-entry barrel. The #6 stud size fixes the mounting hole diameter, so the terminal only fits that specific fastener. Tongue length is 0.43 in, which determines the reach from the stud centre to the fork opening. The product carries CSA and UL listings and meets RoHS requirements, but has no UL 94 flammability rating.

How it compares

Measured against everything we stock in Wire, Cable & Wiring Supplies, at today’s prices. Recalculated every night.

Price $72.99
Pricier than about 78% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand name3M
Product typeElectrical Connectors

Questions about this item

How much heat can the vinyl insulation on the 3M MV18-6FLX fork terminal withstand during continuous operation?

The vinyl insulation is rated for a maximum operating temperature of 221 Degrees F, so it will handle typical electrical heating in a 1,000 V circuit without degrading.

What crimping tool and wire gauge are required to install these #6 stud fork terminals correctly?

You need a crimper compatible with funnel-entry barrels and 18 AWG copper wire; the terminal accepts a maximum wire size of 18 AWG and uses a crimp termination style.

Will the tin-plated copper contact on this terminal connect reliably to older bus bars or screws that may have oxidised surfaces?

The tin finish on the copper contact resists oxidation and provides a low-resistance joint, while the brazed seam ensures mechanical strength when torqued onto a #6 stud.

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