On a one-line electrical diagram, a technician sees a breaker symbol with the number "52" next to it, and a relay symbol with "51". According to ANSI/IEEE standard device numbers, what do these represent?
Answers
A52 is a Transformer; 51 is a Ground Fault Sensor
B52 is a DC Contactor; 51 is an Undervoltage Relay
C52 is the Panel ID; 51 is the Zone ID
D52 is an AC Circuit Breaker; 51 is an AC Time Overcurrent Relay
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