3M Performance plus twist-on wire connector accommodates 22 - 8 AWG conductors. Connector in red/yellow color, has steel spring construction and polypropylene/thermoplastic elastomer insulation. It withstands voltage rating of 600 Volts. Connector measures 1.43 Inch x 0.76 Inch. It has V-2 flammability rating per UL94 to withstand harsh environmental conditions. It withstands temperature rating of 105 deg C. Connector is UL listed, CE/IEC/CSA certified and RoHS compliant.