True-RMS Ammeters Include Settable Current Alarm

The ACA-20RM-ALM series digital, true-rms AC ammeters provide a user-settable over-current alarm and measure/display true-rms, non-sinusoidal AC currents. They are completely self-contained and include a built-in current transformer to simplify use in numerous applications. The series comprises two models providing an input range of either 0A to 30A or 0A to 50A. Both have a resolution of 0.1A and the 50A model features a split-core type current transformer that clamps around insulated live conductors. Two 50/60Hz AC power supply options are available, offering a choice of either 85 to 140 Vac (nominally 120 Vac) or 170 to 264 Vac (nominally 240 Vac). Power consumption is less than 50 mA. Other features include 9.4-mm, three-and-a-half digit LED displays and built-in bezel/filter assemblies with metal fasteners. Single-unit pricing for ACA-20RM-ALM ammeters is $106 and $90 each/100. MURATA POWER SOLUTIONS INC., Mansfield, MA. (508) 339-3000.