Terminal box, connection, 500 volts, 3 phase, Submersible to 15 feet, non-magnetic. Provided with main terminals for 75 MCM cables that permit feeding through the box and taps for up to 2 three phase branch circuits using up to 40 MCM cables. Terminals and bus bar are mounted on an insulator which is mounted in a 10x13x5" deep brass enclosure per MIL-E-24142/6-004. Symbol 572.1 per MIL-DTL-24558/26. Military Part Number M24558/26-572.1. NSN 5940-00-215-5965. Approximate weight 30 pounds.