1.toroidal transformer 2.DC immunity function 3.Linear output current,high precision 4.Small order 5.OEM for 9 year Applications For applications that require exceptional accuracy with minimal phase angle error,accuracy 0.1% Applications would include Current, Power  and Energy monitoring devices. Specifications   Exterior Material: PBT Resin UL flame    retardant rating 94-V0  Interior Insulation: Epoxy Encapsulated  Isolation Current: 2500 Vrms for 1 minute   Dielectric Resistance: 1000 M Ohms @ 500 Vdc  Surge Withstand: 5000V(1.2/50μs standard   shock wave)optional   Operating Temperature:-25 to +55°C,-40 to            +85°C optional  Frequency: 50 to 400 Hz  Accuracy Class: as defined in IEC 60044-1   Part 1 Current Transformers Class 0.1,0.2  RoHS Compliant

Current Transformer