Range min 2 #22 sol max 3 #16 300 voltage Cambridge wire connectors are designed with a flame retardant thermoplastic shell to provide excellent electrical insulation; their fixed precise square wire spring provides a secure grip on conductors their deep skirt entry provides protection from flashover and shorts and their sure grip ribs improve gripping ability and comfort Cambridge wire connectors are UL listed and CSA certified and are color coded to industry standards Contractor pack packaged in a convenient storage box Cambridge performance driven and high quality products are preferred by industry leaders 300-Volt Fixed, precise square wire spring provides more secure gripping on conductors Deep skirt entry provides protection from flashover and shorts Sure-grip ribs improve gripping ability and comfort Threaded, funnel entry guides wires into the connector easily