hs Atkomatic Product Selection Wizard The matrix number for your Atkomatic product is: H S 0 0 - (Place your mouse over characters in the matrix number to see a corresponding description.) Selection Items Thread Size: . 1/4" 3/8" 1/2" 3/4" 1" 1 1/4" 1 1/2" Voltage DC: . AC 12 VDC 24 & 32 VDC 48 VDC 100 VDC 125 VDC 250 VDC Voltage AC: . DC 24 VAC, 60 Hz 100 VAC, 60 Hz 115 VAC, 60 Hz 200 VAC, 60 Hz 230 VAC, 60 Hz 460 VAC, 60 Hz 110 VAC, 50 Hz 220 VAC, 50 Hz 380 VAC, 50 Hz Connection Type: . NPT British Pipe Thread