Does anybody here know of a standard 6 wire twist lock. My application is an outlet box on the end of a cord reel on a fire truck. The cord is a 10/6 SOW and in the outlet box there is a 30 amp 240 volt twistlock, a 15 and 120 volt twistlock, and two regular 5-15's. There are 3 circuits going to the box, two hots an a common ground for the 240 twistlock, hot, neutral, and common ground to the 15 amp twistlock, and one last hot for the 2 5-15's (they will use the neutral from the other 15 amp circuit as a multi-wire)We want to have a twist lock so we can disconnect the outlet box when bringing in the cord reel.The best I would find was an L22-30 but that was only five wires.Any ideas? Thanks, Jim