IMDC300120 15kW Bidirectional Isolated DC-DC Converter

Product Overview

The IMDC300120 is a 15kW bidirectional high-frequency isolated DC-DC converter module designed for battery energy storage systems, hybrid microgrids, elevator energy recovery, and industrial regenerative braking applications. It supports a wide battery-side voltage range of 30–300Vdc and a DC bus-side range of 350–850Vdc, with peak efficiency of 96.5% in both charge and discharge modes. Up to 32 units can be paralleled via CAN bus for scalable power from 15kW to 480kW.

Technical Specifications

Core Advantages

• 96.5% peak efficiency — High-frequency isolated topology achieves near-unity efficiency in both charge and discharge modes, minimizing energy losses over 10+ year operation.
• Wide voltage range — 30–300Vdc battery side supports 48V, 96V, and 150V Li-ion battery strings, making it compatible with multiple BESS configurations without reconfiguration.
• Plug-and-play parallel — Up to 32 units parallel via CAN bus, scaling from 15kW to 480kW with active current sharing below 7% imbalance.
• Full digital control — DSP+CPLD architecture with multi-level hardware and software protection, including battery reverse polarity, overcurrent, overvoltage, overtemperature, and short-circuit protection.
• Global certification — UL1973 and UL9540 certified, plus compliance with GB/T series standards for both international and domestic markets.

Application Scenarios

Elevator Energy Recovery

The IMDC300120 is purpose-built for elevator regenerative braking energy recovery. It captures braking energy from high-rise elevator traction motors, stores it in a Li-ion battery or supercapacitor bank, and releases it during peak acceleration. The built-in dry contacts and 12V auxiliary power supply integrate directly with elevator controllers for plug-and-play installation.

Industrial Regenerative Braking

For cranes, conveyor systems, and electric forklifts that generate braking energy, the module provides bidirectional DC bus regulation. It absorbs regenerated energy during deceleration and returns it during acceleration, reducing grid consumption and peak demand charges.

Hybrid Microgrid & Off-Grid Storage

In DC-coupled microgrids, the module interfaces battery banks to a common 750Vdc bus shared with PV inverters and DC loads. Up to 32 parallel units support scalable C&I and utility-scale storage deployments. The −40°C to +60°C operating range suits harsh environments in Southeast Asia, the Middle East, and Africa.

Operating Modes

Frequently Asked Questions

Q1: What battery chemistries are compatible with the IMDC300120?

The module is designed for lithium-ion batteries (including LiFePO4) and supercapacitors. The default firmware supports common LiFePO4 charging curves. Lead-acid batteries are not recommended due to different voltage and current profiles.

Q2: What is the maximum number of parallel units?

Up to 32 units can be paralleled via CAN bus, delivering up to 480kW total power. Active current sharing ensures imbalance below 7% across all modules.

Q3: Does the module require external cooling?

No. Built-in intelligent fan control adjusts speed based on load and ambient temperature. The module is silent at light loads (<30%) and reaches full speed only near thermal limits.

Q4: What communication protocols are supported?

Both CAN bus and RS485 Modbus RTU are standard. The communication watchdog triggers a safe state within 500ms if the bus is lost.

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© 2026 ImaxPWR Power Co., Ltd. · Product specifications subject to change without notice.