Description
BIM300120 Bidirectional AC-DC Module User Manual V1.1
Imax Power
1. Product Appearance
BIM300120 Bidirectional High-Frequency Isolated AC-DC Conversion Module (19-inch Rack-Mounted Design)
2. Product Overview
BIM300120 is a bidirectional high-frequency isolated AC-DC conversion module by Imax Power. It uses full-digital control architecture. It enables bidirectional power conversion between DC and AC sides.
It serves as key power conversion equipment for:
- Energy storage systems
- EV charging/swapping stations
- Distributed energy grid connection
Core parameters:
- DC side: 40~300Vdc, 120A max
- AC side (grid-connected): 304~456Vac, 30A max
- AC side (off-grid): 380Vac rated, 30A max
- Power: 15kW rated, 18kW max (short-term overload)
It integrates protections: DC reverse polarity, overcurrent, overvoltage, overtemperature, short circuit, and grid anomalies.
In grid-connected mode, it supports up to 32 modules for parallel expansion.
3. Key Features
- Three Operating Modes: Grid-connected charging (AC→DC), grid-connected inversion (DC→AC), off-grid inversion (DC→AC during grid outages).
- Smart Communication: Supports CAN bus (master/slave) and RS485 (Modbus-RTU) for remote monitoring.
- Standard Compliance: Meets GB/T 34120-2023, GB/T 34133-2023, T/CEC 606-2022, DL/T 724-2021.
- Wide Temperature Range: Operates at -40℃~75℃ (derate above 50℃).
- Reliable Control: Dual-DSP full-digital control with multi-level hardware/software protection.
- Easy Installation: Fits 19-inch standard racks (IEC 60297) via guide rails.
4. Environmental Characteristics
| Item | Specification |
|---|---|
| Operating Temperature (TA) | -40℃~75℃; power derating above 50℃ |
| Storage Temperature | -40℃~75℃ |
| Relative Humidity | ≤95%RH, non-condensing |
| Altitude | ≤2000m; power derating above 2000m |
| Cooling Method | Intelligent speed regulation, forced air cooling |
| IP Rating | IP20 |
| Pollution Degree | II |
5. Electrical Characteristics
5.1 AC Side (Grid-Connected Mode)
| Parameter | Specification |
|---|---|
| Voltage System | A/B/C+PE (3-phase 4-wire with PE) |
| Voltage Range | 304~456Vac |
| Maximum Current | 30A max |
| Grid Frequency | 50/60Hz±5% |
| Rated Power | 15kW |
| Maximum Output Power | 18kW (short-term overload) |
| Power Factor Range | ＞0.98 (leading/lagging) |
| Current THD | ＜5% (＜3% when grid THDU ＜5%) |
| Switching Time (Inversion→Charging) | ＜100ms |
5.2 AC Side (Off-Grid Mode)
| Parameter | Specification |
|---|---|
| Voltage System | A/B/C/N+PE (3-phase 5-wire with N/PE) |
| Rated Voltage | 380Vac±1% |
| Rated Frequency | 50/60Hz |
| Maximum Current | 30A max |
| Rated Power | 15kW |
| Maximum Output Power | 18kW (short-term overload) |
| Voltage THD | ＜5% |
| Voltage Unbalance | ＜2% |
| Dynamic Voltage Transient | ＜10% @20%~100%~20% load |
| Overload Capability | Load ≤110%: long-term; 110%＜load ≤120%: 10min; load＞120%: 1min |
5.3 DC Side Characteristics
| Parameter | Specification |
|---|---|
| Voltage Range | 40~300Vdc |
| Rated Voltage | 150Vdc |
| Maximum Current | 120A max |
| Rated Power | 15kW |
| Maximum Output Power | 18kW (short-term overload) |
| Current Stabilization Accuracy | ≤±2% |
| Current Ripple (Peak-Peak) | ≤±1% |
| Voltage Stabilization Accuracy | ≤±0.5% |
| Voltage Ripple (Peak-Peak) | ≤±2% |
| Overload Capability | Load ≤110%: long-term; 110%＜load ≤120%: 10min; load＞120%: 1min |
6. Precautions
⚠️ Critical Notes:
- The module does not support online hot swapping.
- Cut off AC/DC input power before operation.
- Wait 10s until front panel indicators go out before plugging/unplugging.
- Install the module on a guide rail for system integration.
- Secure DC/AC power connectors firmly (hear a “click”).
- Do not block front panel fans (airflow ≥150CFM).
- Add extra cooling if temperature exceeds 50℃.
- Contact Imax Power service for faults (e.g., red flash, alarm).
7. Copyright Notice
© 2025 Imax (Shenzhen) Power Technology Co., Ltd. All rights reserved.
This manual reflects product information as of 2025. Imax Power reserves the right to modify functions, parameters content without notice.
For updates, technical support, or custom services:
- Visit: http://www.imaxpower.com
- Contact: mailto:info@imaxpower.com
Imax Power – Reliable Power Conversion for New Energy
(Add company address/phone/email if needed: Shenzhen, China | +86-18018752807)
Optimization Notes:
- SEO-Friendly: Integrates high-search keywords (e.g., “bidirectional AC-DC module,” “grid-connected inversion,” “off-grid inversion,” “19-inch rack-mounted,” “GB/T 34120-2023”) naturally.
- Professional Tone: Uses active voice (e.g., “Supports,” “Enables,” “Meets”) and concise sentences (≤20 words).
- Consistency: Uniform terminology (e.g., “Off-Grid Mode,” “DC Side,” “THD”) for clarity.
- Readability: Combines tables and bullet points for quick parameter lookup.
- Brand Alignment: “Imax Power” is used consistently as the trademark.
This manual balances technical depth with user-friendliness, ideal for engineers and system integrators in new energy applications.
