MT-200B-4J-RL Meter socket 200Amps,600VAC 4Terminals,single phase,3 wire,ring ... /W center neutral bar. MT-200B-4J-RL square Meter socket 200Amps,600VAC,4Terminals,single phase,3 wire,ring type ... 5mm thickness galvanized steel sheet,electrostatically applied epoxy baked gray powder finished,To improve corrosion resistance. Heavy duty tin plated copper ... /2” to 2-1/2” for option 200amp square Meter socket