Description
📋 Product Overview
The IMDC300120II is a bidirectional high‑frequency isolated DC‑DC converter module purpose‑built for elevator energy storage and regenerative drive systems. It supports a wide battery‑side voltage range of 30–300 Vdc, accommodating both lithium‑battery packs and supercapacitor banks.
The module features two dry‑contact outputs (one N.O., one N.C.), a 12 Vdc / 500 mA non‑isolated auxiliary supply, and requires external 220 Vac for internal housekeeping power. With full digital control, comprehensive protection, and support for up to 32 units in parallel, it delivers robust scalability for industrial and microgrid applications.
Dimensions 220×84×400 mm
Weight < 8.5 kg
Cooling Smart forced‑air
Standards GB/T 32271‑2015, GB/T 34120‑2023, UL1973, UL9540
Weight < 8.5 kg
Cooling Smart forced‑air
Standards GB/T 32271‑2015, GB/T 34120‑2023, UL1973, UL9540
⚙️ Key Features
▸Charging / Discharging / Auto‑switch modes
▸Zero‑power standby with battery online
▸External 220 Vac for auxiliary power
▸12 Vdc / 500 mA non‑isolated supply output
▸1× N.O. + 1× N.C. dry contact
▸Intelligent battery power matching
▸CAN bus & RS485 communication
▸LED status & alarm indication
▸Fully digital control with multi‑layer protection
▸Up to 32 units parallel for capacity expansion
📊 Technical Specifications
🌡️ Environmental Conditions
⚡ Electrical Characteristics
🛡️ Protection Thresholds
🎯 Core Benefits
- ✓ Ultra‑high efficiency – 96.5% peak in both charge & discharge modes
- ✓ Wide battery compatibility – 30–300 Vdc supports Li‑ion & supercapacitors
- ✓ Zero‑power standby – battery online with negligible idle loss
- ✓ Scalable parallel – up to 32 units for multi‑MW systems
- ✓ Rugged environmental tolerance – −40°C to +60°C, IP‑grade forced air
- ✓ Smart communication – CAN bus & RS485 with full digital monitoring
🏭 Typical Applications
- ▸ Elevator energy storage & regenerative systems – capture and reuse braking energy
- ▸ Battery energy storage systems (BESS) – commercial & industrial peak shaving
- ▸ Microgrid & off‑grid power – island/remote sites with renewable + storage
- ▸ Industrial DC backup – UPS / critical load buffering
- ▸ EV charging infrastructure – DC fast‑charger energy buffering
🔌 Electrical Topology & Operating Modes
AC Grid
380‑480 Vac
Grid‑connected
→
↔ Bidirectional
AC/DC
Bidirectional
3‑Level
High‑Freq Isolated
Rectifier / Inverter
→
↔ Bidirectional
DC/DC
Bidirectional
Isolated
30‑300 Vdc
Charge / Discharge
→
↔ Bidirectional
Battery
Li‑ion / SCap
30‑300 Vdc
Charging: Grid → Battery
Discharging: Battery → Grid/Load
High‑Frequency Isolation
🔋 Charge Mode
Energy flows from DC bus to battery. Constant‑current / constant‑voltage charging with soft‑start.
⚡ Discharge Mode
Energy flows from battery to DC bus. Regulated power delivery with over‑current protection.
⏸️ Auto‑Switch Mode
Intelligent seamless transition between charge/discharge based on bus voltage & battery state.
All technical descriptions are sourced from IMAXPWR official specifications.
🛡️ Protection & Safety
🔁 Reverse Polarity
Built‑in battery reverse‑connection protection prevents damage from incorrect wiring.
⛔ Short Circuit
DC bus & battery input short‑circuit protection; module latches off, requires power‑cycle reset.
🌡️ Over‑Temperature
Thermal protection with automatic recovery when temperature returns to normal range.
⚡ Over‑Voltage / Under‑Voltage
Independent thresholds for battery & bus with alarm and protection levels (see table above).
📡 Redundant Monitoring
Digital control with multi‑level hardware/software fault detection and LED alarm indication.
🧊 Thermal Management
Smart speed‑controlled forced‑air cooling ensures reliable operation across −40°C to +60°C.
❓ Frequently Asked Questions
Q1: What battery types does the IMDC300120II support?
A: The module supports both lithium‑ion batteries and supercapacitor banks with a voltage range of 30–300 Vdc.
Q2: How many units can be paralleled?
A: Up to 32 units can be connected in parallel for capacity expansion and redundancy.
Q3: What is the operating temperature range?
A: −40°C to +60°C with derating above 50°C; storage from −40°C to +75°C.
Q4: Which communication protocols are available?
A: CAN bus and RS485 are supported for monitoring, control, and system integration.
Q5: What protection features are included?
A: Reverse‑polarity, over‑voltage, under‑voltage, over‑current, over‑temperature, and short‑circuit protection with LED alarm.
Q6: Does the module support zero‑power standby?
A: Yes. With battery online, the module enters zero‑power standby, consuming negligible idle power.
📦 Related Products
▶ IMDC Series DC/DC Converters – various power ratings for elevator & industrial storage
▶ IMAXPWR PCS (Power Conversion System) – bidirectional AC/DC for grid‑tied BESS
▶ MPPT Solar Charge Controllers – high‑efficiency PV‑to‑battery with wide input range
▶ Hybrid Inverters (Off‑Grid / On‑Grid) – integrated solar + storage + backup
▶ Integrated AC/DC Cabinets – turnkey solutions for microgrid & industrial sites
Explore more at IMAXPWR Product Center →
🤝 Business & Service
CONTACT
+86‑13760212825
WhatsApp / WeChat (COCO)
COMPANY
Imax Power Technology Co., Ltd.
National High‑Tech Enterprise
SERVICES
Warranty · Tech Support · Customization
OEM / ODM · Global Shipping
© 2026 IMAXPWR · All specifications based on official datasheets. Designed for global microgrid & industrial energy storage.
