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Bare copper male disconnect terminals, 500 pack, 0.25 inch tab

3M

3M MA250DM/6RRK Male Disconnect Bare 500pk .25in Tab 600V

SKU CH-30VX-PEJRM

Bare copper male disconnect terminals with .25 in tabs, crimp termination, and 600 V rating in a 500-piece pack

  • TypeElectrical Connectors
  • Crimp termination enables fast installation
  • Bare copper contact ensures reliable conductivity
  • 600 V rating suits industrial circuits
  • 347 °F operating range handles high heat
  • 500-piece pack supports volume projects

3M MA250DM/6RRK Male Disconnect Terminals

These 3M male disconnect terminals suit electricians and maintenance teams who need reliable crimp connections in panels, harnesses or automotive wiring. Each terminal accepts a .25 in tab and is rated for 600 V service. The butted-seam barrel has an inside diameter of .08 in and an overall length of .8 in. They are CSA certified and UL listed for code-compliant installations.

Bare Copper Construction and Bulk Packaging

The terminals ship non-insulated with bare copper contact material, so installers can apply their own heat-shrink or tape insulation to match the environment. A pack quantity of 500 supports high-volume jobs and reduces re-order frequency. RoHS compliance confirms the parts meet restricted-substance requirements for regulated markets.

Temperature Range and Voltage Headroom

Rated from 347 Degrees F minimum to 347 Degrees F maximum operating temperature, these disconnects handle sustained heat in engine bays or industrial cabinets without derating. The .032 in tab thickness provides solid mechanical retention under vibration. They are not suited for applications requiring pre-insulated barrels or tab widths other than .25 in.

Highlights

  • Crimp termination enables fast installation
  • Bare copper contact ensures reliable conductivity
  • 600 V rating suits industrial circuits
  • 347 °F operating range handles high heat
  • 500-piece pack supports volume projects

Specifications

Brand3M
TypeElectrical Connectors

Questions about this item

Will the copper contacts on these MA250DM/6RRK terminals corrode or need re-crimping over time?

The bare copper tabs are uninsulated and rated to 600 V, so periodic inspection for oxidation and a fresh crimp if resistance rises are the only maintenance they require.

What fails first when these .25 in tab disconnects carry continuous current at the 600 V rating?

The butted-seam barrel and 347 °F temperature limit set the practical ceiling; sustained loads that push the terminal past that temperature will degrade the crimp before the copper itself does.

How hot do these non-insulated 3M terminals get when they run all day at full load?

They are rated to a maximum operating temperature of 347 °F with no insulation to trap heat, so the terminal body will approach ambient plus the rise caused by the crimp resistance.

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