0.2 Class Current Transformer (NRC07)
Used for a current sensing device for utility energy meter.
Moisture-proof and vibration-resistant.
Encapsulation by epoxy resin, with high insulation ability.
Casing by flame retardant PBT.
DC-tolerance version available (IEC62053-21 standard).
|Operating temperature||-25 º C ~ 75 º C|
|Relative humidity||80% ~ 90%|
|Rated primary current I p||10 or 20A|
|Maximum primary operating current I max||100A|
|Rated secondary current I s||When I p =10A, I s =4mA|
When I p =20A, I s =8mA
|Turn ratio N||1: 2500|
|Testing current for DC component I test|
|Burden resistor R b||5 Ω , 10 Ω , 20 Ω|
|Accurate operating current range||5% I p ~ I max|
|Accuracy class ||0.2%|
|Insulation intensity under power frequency||Without damage by 4000V for 1 min.|
|Insulation resistance||> 50M Ω|