Hitachi UTOPIA R32 Series - 10.1 Important Considerations

3 General data
Electrical data
TCGB0136 rev.1 - 05/2021
45
3
3.5 Electrical data
Keywords:
• U: Power supply.
• PH: Phase.
• f: Frequency.
• STC: Starting current: Less than maximum current.
• IPT: Total input power.
• RNC: Running current.
• MC: Maximum current.
• CB: Circuit breaker
• ELB:Earthleakagebreaker(N°ofpoles/A/mA)
! CAUTION
• EnsurespecicallythatthereisanEarthLeakageBreaker(ELB)installedfortheunits(outdoorandindoorunit).
• IftheinstallationisalreadyequippedwithanEarthLeakageBreaker(ELB),ensurethatitsratedcurrentislargeenoughtoholdthe
currentoftheunits(outdoorandindoorunit).
? NOTE
• ElectricfusescanbeusedinsteadofmagneticCircuitBreakers(CB).Inthatcase,selectfuseswithsimilarratedvaluesastheCB.
• TheEarthLeakageBreaker(ELB)mentionedonthisTechnicalCatalogueisalsocommonlyknownasResidualCurrentDevice(RCD)
orResidualCurrentCircuitBreaker(RCCB).
• TheCircuitBreakers(CB)arealsoknownasThermal-MagneticCircuitBreakersorjustMagneticCircuitBreakers(MCB).