HM-A Medium current range / Bolt on type 
Dimensional outline drawing
Characteristics charts
Features
- Rated current: 300A–600A
- High accuracy current sensor using fluxgate
technology - Very low output noise
Applications
High precision power supply, Medical equipment, High precision inverter, Test equipment
Electrical characteristics Ta=25℃
| Output type | Current output type | |
|---|---|---|
| Type | HM-A300A02B15B | HM-A600A04B15B |
| Rated current [If] | ±300A | ±600A |
| Continuously flowing DC current | ±600A | ±600A |
| Min.overload trip current [Is] (Note3) | ≧±750A (RL≦5Ω) ≧±850A (RL≦2.5Ω) |
|
| Linearity limits (Note4) | 0~±650A(RL≦5Ω) 0~±750A(RL≦2.5Ω) |
|
| Rated output [Ih] +If | I0+200mA±300ppm | I0+400mA±300ppm |
| Rated output [Ih] -If | I0-200mA±300ppm | I0-400mA±300ppm |
| Residual output [I0] | Within ±10μA | |
| Output linearity | Within ±10ppm | |
| Second coil resistance | Approx. 16Ω | |
| Response time | Within 1μs (at di/dt=100A/μs) | |
| Response performance | Within 35% | |
| Hysteresis voltage range | Within 15μA | |
| Output Temp. Coef. | Within ±5ppm/℃ | |
| Residual output Temp. Coef. | Within ±0.2μA/℃ | |
| Control power supply | ±15V±5% | |
| Consumption current | 250mA+(Input current/1500) | |
| Operating Temp. | +10℃～+50℃ | |
| Storage Temp. | 0℃～+60℃ | |
| Operation status (Photocupuler output) (Note5) | Open collector (Imax=6mA Vmax=+15V), Active low (Normal operation) | |
| Dielectric withstand voltage | 2500V AC 50/60Hz 1minute | |
| Insulation resistance | Not less than 500MΩ 500V DC | |
- Note1）
- The indicated residual output is the one after the core hysteresis is removed.
- Note2）
- Energization time of continuous live DC current x110% shall be within 1 minute.
- Note3）
- If the current is higher than this, the inside circuit will shut down and the output will be almost zero.
- Note4）
- Denotes the range of the input current value for which the output is within 0.1% of the estimate output voltage.
- Note5）
- It is a signal that indicates the inside circuit operation; it indicates Lo level under normal operation, and Hi level when the inner circuit is shut down because of an over current.
Consultations and Inquiries about Our Products
Current sensor user's guide
When using our current sensors, please read the following “Handling Precautions,” “Main Characteristics,” and “Product Labeling” and use them within the specified limits.
Click here for FAQs about current sensors