Description
PW9100A AC/DC Current Box for High-Precision Direct Measurement
The PW9100A AC/DC Current Box from Hioki is a state-of-the-art direct current measurement option for Hioki Power Analyzers, enabling engineers to measure AC and DC currents with exceptional precision. This unit is designed for applications requiring direct input connections, including inverter efficiency evaluation, hybrid and electric vehicle power testing, and renewable energy systems.
Wideband High-Accuracy Measurement
Supporting a bandwidth of DC to 3.5 MHz and a rated input of 50 A AC/DC, the PW9100A ensures accurate power readings across a wide spectrum. When combined with the PW8001 Power Analyzer (with U7005), the device achieves world-class power accuracy of ±0.055%, making it ideal for high-speed, high-precision applications. Its 120 dB common-mode rejection at 100 kHz ensures reliable measurements even in electrically noisy environments.
Multi-Channel Design
The PW9100A is available in 3-channel (PW9100A-3) and 4-channel (PW9100A-4) configurations. For expanded testing needs, two 3-channel units can be combined for six-channel measurements. Its full-rack size and direct-coupled design allow seamless integration into test benches, improving workflow and efficiency for multi-phase motor and inverter testing.
Automatic Detection
This device features a built-in memory (I2C-EEPROM) that stores sensor calibration, rated current, model, and serial number. When connected to the PW8001, the instrument automatically detects these parameters, including phase correction data, eliminating manual entry errors and streamlining setup. Engineers can focus on precise testing without worrying about configuration mistakes.
Applications
The PW9100A is engineered for high-performance testing environments such as:
- Motor and inverter efficiency evaluation
- EV and hybrid vehicle power system testing
- Renewable energy power conversion systems
- Multi-channel bench power measurements
- Advanced laboratory and research applications
Its combination of direct input measurement, automatic detection, wide frequency bandwidth, and high accuracy makes it a critical tool for modern power analysis.
Technical Specifications Table
| Specification | Details |
| Product Name | PW9100A AC/DC Current Box |
| Rated Current | 50 A AC/DC |
| Frequency Bandwidth | DC to 3.5 MHz |
| Power Accuracy | ±0.055% (with PW8001 + U7005) |
| Common Mode Rejection | 120 dB at 100 kHz |
| Channels | 3 ch (PW9100A-3), 4 ch (PW9100A-4) |
| Measurement Method | Direct-coupled current measurement |
| Instrument Compatibility | Hioki Power Analyzers (PW8001, PW6001, PW3390) |
| Automatic Sensor Detection | Yes, with PW8001 |
| Mounting | Full-rack design for test benches |
| Applications | EV testing, inverter efficiency, renewable energy systems, multi-channel lab testing |
| Model Number | PW9100A-3, PW9100A-4 |
| Standalone Use | Cannot be used alone |
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