CTS Series 20 AMP - 600 VOLTS Transformer Rated c/w Test Switch. Transformer rated for services over 200 Amps. CSA enclosure 3R. CSA approved for copper only. Specifications Brand Hydel Family CTS Series Meter Socket - 20 AMP - 600 VOLTS Transformer Rated c/w Test Switch Voltage (V) 600 V Amperage Transformer rated for services over 200 Amps Amp Rating 200A Length (in) 4-3/4 Width (in) 12 Height (in) 20 Enclosure Rating NEMA 3R Mounting UnderGround U/G Operates 5 Jaw c/w 4 pole test switch Wire Gauge 14-8 AWG UL Listed CSA approved for copper only