ItemTypeBar (mm)Range of primary current (A)max. rated Burden (VA)Accuracy class
1 LPZ Wound Primary 1-40 5 0.5,1.0
2 LP20 20×5 50-200 2.5 1.0,3.0
3 LP30E 30×10 50-400 5 3.0
4 LP30 30×10 50-400 5 0.5,1.0
5 LP40 40×10 400-800 7.5 0.5,1.0
6 LP50 2(50×10) 400-1000 7.5 0.5,1.0
7 LP60 60×10, 2(50×10) 600-1500 15 0.5,1.0
8 LP100 100×10, 2(80×10) 1500-3000 30 0.5
9 LPS Wound Primary up to 12×(1 or 5) 40 0.5,1.0
10 Ring Type on request <8000 50 0.5,1.0,3.0,5P,10P
Technical Specifications
TypeLP
Highet voltage for equipment (KV) 0.72
power frequency withstand voltage, 1 minute (KV) 3
Lightning impulse voltage (1.2/50 μs full wave) (KV) -
Rated frequency (Hz) 50 or 60
Secondary current (A) 1 or 5
Rated continuous thermal current 1.2×In
Rated short time thermal current (Ith), 1sec, 60×In
Rated dynamic current (Idyn) 2.5×Ith
Instrument security factor (FS) 5 or 10