1.Features:
① The busbar is built-in, the flexible wire is led out, and the printed circuit board is directly welded and installed;
② Small size, high precision, beautiful appearance;
③ Fully enclosed, good mechanical and environmental resistance, strong voltage isolation capability.
2.Ambient conditions:
① Ambient temperature: -55℃~+85℃;
② Relative humidity: ≤90% at 40℃;
③ Atmospheric pressure: 860~1060mbar(about 650~800mmHg).
3.Operating Frequency Range: 20Hz~20kHz
4.Insulation Thermal Class:Class B (130°C)
5.Safety Features:
① Insulation resistance: >1000MΩ in normal condition;
② Insulation withstand voltages: 6000V 50Hz/1min;
③ Fire retardancy: In conformity with UL94-V0.
6. Outline Drawing, Installation Dimension and Coil Diagram : ( tolerance ± 0.5mm )
① Outline drawing and installation dimensions are shown in Figure 1:
② The coil diagram is shown in Figure 2:
Fig 1
Fig 2
7. Typical Application and Performance Parameters:
① When the sampling voltage is directly obtained by the resistance method ( as shown in Figure 3 ) , the performance parameters are shown in Table 1 ;
② When using the IC method to obtain the sampling voltage ( as shown in Figure 4 ) , the performance parameters are shown in Table 2.
Table 1 :
Model | Rated Input Current | Rated Output Current | Rated Sampling Resistance | Rated Sampling Voltage | Phase Shift | Non-linearity | Linear Range |
TA1220-01 | 10A | 10mA | 300Ω | 3V | ≤50' | ≤0.5% | ≥3 times of the rated value |
TA1220-01M | 10A | 10mA | 150Ω | 1.5V | ≤10' | ≤0.2% |
Table 2 :
Model | Rated Input Current | Rated Output Current | Rated Sampling Voltage | Phase Shift | Non-linearity | Linear Range |
TA1220-01 | 10A | 10mA | ≤1/2 times IC power supply voltage | ≤5' | ≤0.1% | ≥3 times of the rated value |
TA1220-01M | 10A | 10mA |
8.Attention:
① Connect the primary winding of the current transformer in series with the measured current loop, and operate the secondary winding in near short-circuit mode.
② Do not allow the secondary winding of the current transformer to be open-circuited and do not install any fuse in the secondary circuit.