8A Nac Extender 4 Class A/B, Type Nac Power Extender, Material Steel, Finish Red, Enclosure Depth 4.63 In, Enclosure Width 14.50 In, Enclosure Height 18 In, Input Voltage 115VAC, Voltage OUTPut 24VDC or 12VDC, OUTPut Current 8A Amps, Input Frequency 60 Hz, Standards UL864, UL1481, MEA , CSFM , FM, Includes Battery leads, Cam Lock