This NSi Industries ET-CP-14 Easy-Twist twist-on wire connector combination pail with dividers contains 65 twist-on wire NSi Industries WC-O connectors, 45 WC-Y connectors, 30 WC-R connectors, and 100 WC-B connectors for joining copper conductors of various sizes. The connectors are made with a flame-resistant thermoplastic shell for safety and electrical insulation, have a temperature rating of 105 degrees C (221 degrees F), and have a maximum voltage rating of 600V (WC-B connectors rated at 300V). Each is fitted with a fixed, square wire spring for secure gripping of conductors. They meet Underwriters Laboratories (UL) standard 94 V-2 for flame resistance and are Canadian Standards Association (CSA) certified. This twist-on wire connector combination pail is suitable for a wide range of electrical connection and termination applications with appropriately sized conductors.SpecificationsWC-O colorOrangeWC-O wire size range#22 to #14 AWGWC-O minimum wire combinationOne #18 with one #20 AWGWC-O maximum wire combinationFour #16 with one #20 AWGWC-Y colorYellowWC-Y wire size range#22 to #10 AWGWC-Y minimum wire combinationThree solid #20 AWGWC-Y maximum wire combinationTwo #12 with two #14 AWGWC-R colorRedWC-R wire size range#22 to #10 AWGWC-R minimum wire combinationThree #18 AWGWC-R maximum wire combinationTwo #10 solid with two #12 stranded AWGWC-B colorBlueWC-B wire size range#22 to #14 AWGWC-B minimum wire combinationTwo #22 AWGWC-B maximum wire combinationThree #16 AWGStandards metUL standard 94 V-2, CSA certified NSi Industries manufactures electrical components and sensors, lighting products, and energy management products. The company, founded in 1975, is headquartered in Huntersville, NC.