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| Brand Name : | MEASTEK | 
| Model Number : | MCTH400A | 
| Payment Terms : | T/T,Western Union,MoneyGram | 
| Delivery Time : | 5-8 work days | 
MCTH400A High-precision Current Sensor 0.01% Accuracy Wideband 100kHz Laboratory-grade Isolation Measurement Applicable To Medical new Energy
1. Basic Parameters
Maximum current: 400A (DC/RMS), accuracy of 0.01%, bandwidth of
100kHz, suitable for DC, AC and irregular waveform measurement.
2. High sensitivity and low loss
Current transfer ratio 1:2000, extremely low insertion loss, noise
≤±0.004μA, suitable for laboratory precision instruments or battery
pack monitoring.
3. Core technology support
Adopting excitation flux closed-loop control and temperature
control compensation technology, the temperature drift is extremely
small, ensuring stable operation in the range of -10℃~+70℃.
4. Safety protection design
Power frequency withstand voltage 5kV, insulation
resistance>2000MΩ@500V, support overload Error signal alarm to
ensure equipment safety.
5. Application scenarios
Laboratory current calibration, medical equipment (such as MRI),
small industrial motor drive and new energy photovoltaic system.
Specifications
| Model | Maximum current | Accuracy | Bandwidth | Current transfer ratio | |
| DC | RMS | ||||
MCTH400A  | 400A  | 400A  | 0.01%  | 100KHz  | 1:2000  | 
Electrical properties
| Item | Symbol | Test Conditions | Minimum | Nominal | Maximum | Unit | 
| Maximum continuous DC current | IPN_DC  | -  | 400  | -  | 1000  | Adc  | 
| Corresponding measurement current range (Arms) | IP  | -  | 400  | -  | 1000  | Aac  | 
| Primary-secondary conversion ratio | KN  | -  | 1:2000  | -  | 1:2000  | -  | 
| Rated output current (mArms) | Isn  | Primary rated current | 200  | -  | 500  | mA  | 
| Power supply voltage (±5%) | Vc  | -  | -  | ±15  | -  | V  | 
| Power consumption | Ic  | -  | 35mA +Is  | -  | 35mA +Is  | mA | 
| Load resistance (@Vc=±15V) | RL  | -  | ≤50Ω(@Ip=DC400A)  | -  | ≤50Ω(@Ip=DC1000A)  | Ω  | 
| Secondary resistance | Rs  | -  | ≈15  | -  | ≈15  | Ω  | 
| Power frequency withstand voltage (50HZ, 1min) | Vd  | -  | -  | 5  | -  | KV  | 
| Insulation resistance | Ri  | -  | -  | >2000MΩ@DC500V  | -  | Ω  | 
Accuracy Measurement
| Item | Symbol | Test Conditions | Minimum | Nominal | Maximum | Unit | 
| Accuracy (@Ta = +25℃) | XG  | Input DC, full temperature range | -  | -  | 0.01  | %  | 
| Linearity error | EL  | Full range | -  | -  | 0.005  | %  | 
Offset current (@Ta =+25℃)  | Ioff  | Full temperature range | -  | -  | ≤|±0.004|μA  | μA  | 
| Response time | Tr  | di/dt=100A/μs, rise to 90% IPN | -  | -  | ≤1  | μs  | 
| Following speed | di/dt  | -  | >100  | -  | >100  | A/μs  | 
| Frequency range | f  | -  | -  | -  | 100  | kHz  | 
General Features
| Item | Symbol | Test Conditions | Minimum | Nominal | Maximum | Unit | 
| Operating temperature range | Ta  | -  | -10  | -  | +70  | ℃  | 
| Storage temperature range | Ts  | -  | -25  | -  | +80  | ℃  | 
| Working humidity (no condensation) | Hw  | -  | 20  | -  | 90  | %  | 
| Weight | W  | -  | -  | ±600  | -  | g | 
| Execution standard | St  | EN50178  | ||||
| Casing material | Encl  | Compliant with UL94-V0 | ||||
Structure Diagram

Basic dimensional error  | ±0.2mm  | 
Primary aperture  | Φ40.5mm  | 
Disc installation  | Bottom:4 x Φ4mm,2 x Φ5mm Side:4 x Φ5mm  | 
Output terminal  | DB9 MALE  | 
                                 
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