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Bare copper male disconnect terminal, 250 kcmil, pack of 500

3M

3M MA250DM/10RRK Male Disconnect Bare 250 kcmil 500 pk

SKU CH-0S5S-BZ7RW

Pack of 500 bare male disconnect terminals for 250 kcmil wire, rated 772 V and 347 °F

  • Product typeElectrical Connectors
  • Overall length4.3
  • Main materialHAWA
  • Copper conductor ensures reliable conductivity
  • Butted seam resists separation under load
  • Tin plating protects against corrosion
  • Crimp termination creates secure mechanical bond
  • RoHS 2011/65/EU compliant for regulated environments

250 kcmil Bare Male Disconnects

These 3M male disconnect terminals accept 250 kcmil copper wire and are supplied in a pack of 500. Each terminal features a tin-plated copper tab measuring 0.25 in wide by 0.032 in thick with a butted seam barrel. The crimp termination is rated for 772 V maximum voltage and 347 °F operating temperature.

Bare Terminals for High-Current Crimp Jobs

Electrical contractors and maintenance teams use these bare disconnects for power distribution and traffic-signal wiring where insulation is handled separately. The uninsulated barrel suits applications that add heat-shrink or tape after crimping. Installers who need pre-insulated housings or a different wire gauge should select another product.

250 kcmil Wire Size Match

The single specification that decides fit is the fixed 250 kcmil wire size for both minimum and maximum capacity. Only conductors of this exact cross-section will fill the 0.065 in barrel ID correctly for a reliable crimp.

How it compares

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

Price $62.99
Pricier than about 74% of the 1,610 comparable items (median $25.99).

Specifications

Product
Brand name3M
Product typeElectrical Connectors
Size & build
Main materialHAWA

Questions about this item

How can I confirm the crimp connection is solid after installation?

A proper crimp shows no visible strands outside the .065 in barrel and the tab seats firmly on the .25 in wide .032 in thick male blade.

What comes in the package and what must be purchased separately?

The pack contains 500 bare copper male disconnects; you must supply 250 kcmil wire and a matching crimp tool.

Which version should I choose for a 772 V, 347 °F maximum environment?

This single MA250DM/10RRK variant is rated for 772 V and 347 °F, so it covers that requirement directly.

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