Powerware 208/120V - Manual (Page 65)

SPECIFICATIONS
EATON Powerware ® Energy Management System (EMS) Upgrade Kit User’s Guide
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Table 17. Metering
Panel Monitoring Rating Maximum 400A
CT1, CT2, CTM connections: 240V CAT III
V1, V2 connections: 208V CAT III for EMS−UGK−LV, 415V CAT III for EMS−UGK−HV
Branch Circuits Monitors up to 84 individual branch circuit breakers (two 42−circuit panels)
Calibration Fully calibrated at the factory
Clock Real Time Clock (RTC) with one−second resolution, automatic leap year adjustment,
and one month backup time
Sampling Frequency Current and voltage for each breaker sampled 2000 times per second with a
bandwidth of 1 KHz
Current Accuracy Main input: ±2% from 10–100% of full range
Branch circuit: ±5% from 10–100% of full range
Voltage Accuracy ±2%
Blinding Thresholds
(zeroing of low meters) Panel breakers: 1/16 of breaker rating
Main current: <6A
Neutral current (installed Neutral CT): <6A
Neutral current (calculated Neutral): <15A
THD alarming: Phase current <20% of maximum phase current rating