KAS Wide Input Power Supplies TDK-Lambda KAS Wide Input Power Supplies offer high-efficiency performance across a wide temperature range (-40 to +80°C). The power supplies have an input voltage range of 90-305VAC (accepts 277VAC nominal) and a low off-load power draw of <,0.3W. The KAS series is rated Class II (no ground needed) and has a low leakage current (touch) of <,0.25mA at <,240VAC. The TDK-Lambda power supplies meet UL/CSA/IEC/EN 60950-1 and IEC/EN60335-1 safety certifications. This series from TDK-Lambda supports many application types, including building automation/security, testing and measurements, portable equipment, and as a standby supply.