Description
Bidirectional DC/DC Module
M66KDC
Bi‑Directional Buck‑Boost · Full SiC · 99% Efficiency
⚡ 66 kW
|
🔋 180–1000 V
|
♻️ 99.2%
📦 Model: M66KDC
🏷️ Topology: Non‑isolated
🌡️ Cooling: Smart fan
📟 IP: IP20
⚡
Full SiC
Third‑gen SiC devices, peak efficiency 99.2%
🔄
Bi‑directional
Two‑way energy flow for storage & microgrid
📊
Wide Voltage
180–1000 V both sides, adaptive buck‑boost
📡
Smart Comms
RS485 · CAN · Ethernet · dry contact
📋 Technical Specifications
All values from Imax Power official datasheet · M66KDC
| 📌 Product Basic | |
| Product Name | DCDC Module |
| Product Model | M66KDC |
| 🔋 Battery Side | |
| Voltage Range | 180 – 1000 Vdc |
| Rated Voltage | 350 Vdc |
| Maximum Voltage | 1000 Vdc |
| Full Load Voltage Range | 350 – 1000 Vdc |
| Maximum Current | 189 A |
| Number of Battery Ports | 1 |
| ⚡ Bus Side | |
| Voltage Range | 180 – 1000 Vdc |
| Rated Voltage | 600 Vdc |
| Minimum Voltage | 180 Vdc |
| Full Load Voltage Range | 600 – 1000 Vdc |
| Rated Current | 110 A |
| Rated Power | 66 kW |
| 🛡️ Protection | |
| Protection Features | Overvoltage · Undervoltage · Overcurrent · HV short‑circuit · Overtemperature · Insulation monitoring · Surge · Reverse polarity |
| ⚙️ System | |
| Topology | Non‑isolated |
| Peak Efficiency | 99.2% |
| Ingress Protection | IP20 |
| Storage Temperature | ‑40 – 75 °C |
| Operating Temperature | ‑30 – 60 °C (>45 °C derating) |
| Humidity | 0 – 95% RH, non‑condensing |
| Altitude | 4000 m (derating above 2000 m) |
| Noise | ≤ 65 dB |
| Dimensions (W×D×H) | 440 × 535 × 86 mm (without ears/handle) |
| Weight | 13 kg |
| Cooling | Smart fan |
| Communication | RS485 · CAN · Ethernet · dry contact |
| Standards | GB/T 34120‑2023 · GB/T 34133‑2023 · EN 62477 · EN IEC 61000 |
Source: Imax Power official datasheet
🏭 Typical Application Scenarios
Multi‑energy互补 · PV‑Storage‑Charging · DC microgrids
☀️🔋
PV‑Storage‑Charging
Solar + storage + EV charging in one integrated DC bus system.
🏗️
DC Microgrids
Flexible DC coupling for industrial parks, islands, and remote areas.
🧪
Flow Batteries & Supercaps
Wide‑voltage adaptation for emerging storage technologies.
⚡ “PV‑Storage‑Charging” integrated station
Clean energy from PV is stored and then used for EV charging. The system forms a microgrid that can interact with the public grid in both on‑grid and off‑grid modes. Energy storage reduces grid impact during high‑current charging and enables peak shaving for tariff arbitrage.
🔹 DC‑coupled architecture reduces AC/DC conversion stages, lowering CAPEX and improving system efficiency.
🔌 Electrical Topology & Operating Modes
Non‑isolated bidirectional buck‑boost · 180–1000 V both sides
🔋
Battery
180–1000 V
⇄
M66KDC
Bi‑directional
Buck · Boost
⇄
⚡
DC Bus
180–1000 V
⬆ Forward Boost
Battery → Bus. Energy discharge for microgrid supply.
⬇ Reverse Buck
Bus → Battery. Charging storage or energy recovery.
🔄 Auto‑Switch
Seamless transition based on voltage & power demand.
🛡️ Protection & Safety
Comprehensive protection for reliable operation
⛰️
Overvoltage
Prevents voltage spikes
📉
Undervoltage
Avoids low‑voltage operation
🔒
Overcurrent
Limits current above threshold
⚡
HV Short‑Circuit
Fast fault clearing
🌡️
Overtemperature
Smart derating above 45 °C
📊
Insulation Monitoring
Real‑time insulation check
🌩️
Surge Protection
Lightning & switching transients
🔀
Reverse Polarity
Prevents polarity reversal damage
✅ Complies with GB/T 34120‑2023, GB/T 34133‑2023, EN 62477 & EN IEC 61000.
❓ Frequently Asked Questions
Quick answers about M66KDC
❓ Does M66KDC support bidirectional power conversion?
✅ Yes. M66KDC is a bidirectional DC/DC module that supports buck‑boost between battery side and bus side. Power can flow in either direction, making it ideal for storage charging/discharging and DC microgrids.
❓ What is the voltage range of the module?
✅ Both sides operate from 180 to 1000 Vdc. Battery side rated at 350 Vdc, bus side rated at 600 Vdc. Wide range ensures broad compatibility.
❓ Which communication interfaces are available?
✅ Standard: RS485, CAN, Ethernet, and dry contact. Easy integration with PCS, EMS, and third‑party systems.
❓ What is the operating temperature range?
✅ ‑30 to 60 °C. When ambient exceeds 45 °C, overtemperature protection (smart derating) is activated to ensure long‑term reliability.
❓ What are the typical applications for M66KDC?
✅ DC microgrids, PV‑storage‑flexible‑DC, flow batteries, supercapacitors, and “PV‑Storage‑Charging” integrated stations – any scenario requiring bidirectional DC coupling.
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