High Current Digital Memory Ammeter with Timer

Model: MAC-21

The MAC-21 is a self-contained microprocessor based metering and control package for primary injection testing of circuit breakers. It has been designed to interface to air-core sensors used in nearly all existing high current test sets, and will provide accurate true-RMS current readings and trip times even for pulses less than one cycle in duration. It also has contact sensing capability, and output initiation control with preset on time.

High Current Digital Memory Ammeter with Timer