The 6314-023 Impedance Type Ground Monitor senses change in ground wire resistance, trip- ping the circuit breaker if resistance increases to an unacceptable level. It interrupts power to the machine by removing voltage from the trailing cable providing assurance of safely grounded electrical equipment and protection to personnel. It's compact design utilizes same space and mounting arrangements as other front access SMC Ground Monitors. Integral transformer to "amplify" resistance change in pilot/ground loop. Polarity reversal switch changes phase relationship of pilot current with respect to the induced current. Monitors up to 4.5 ohms ground/ pilot loop resistance.