High-power DC/DC converter LBC1K5180G

high-voltageisolatedrack-mount

Product Overview
LBC1K5180G is a bidirectional DC-DC power module engineered for energy storage systems, DC microgrids and second-life battery cascade applications. It supports battery-side voltages from 300 Vdc to 1500 Vdc and bus-side voltages from 400 Vdc to 1500 Vdc. Certifications: TUV CE, cTUVus.

Key Features

• Ultra-wide voltage compatibility: battery 300–1500 Vdc; bus 400–1500 Vdc
• Liquid cooling with G65 antifreeze: operation from -40°C, no power derating up to 65°C
• High efficiency: peak ≥98.5%, full load ≥97%; supports pulse charging/discharging and MCS charging up to 1500 V
• Hot-plug support for liquid cooling and electrical interfaces; quick-plug coolant connectors
• Conformal coating and glue filling for increased protection and reliability
• Operates as rectifier or inverter; power density up to 59.8 W/in³

Curve Charts (available)

• Battery side: charge/discharge voltage & current curves
• Battery side: charge/discharge power & voltage curves
• Bus side: charge/discharge voltage & current curves
• Bus side: charge/discharge power & voltage curves

Technical Specifications (summary)

• Operating Environment
  Operating temperature: -40°C to +70°C (derating above 65°C)
  Storage/transport: -40°C to +70°C
  Relative humidity: ≤95% RH, non-condensing
  Altitude: up to 2000 m
  Cooling: Liquid cooling
  Protection rating: IP50
  Noise: 40 dB
• Coolant Requirements
  Type: G65 antifreeze (60% ethylene glycol + 40% H2O)
  Temperature range: -40°C to +75°C (derating above 65°C)
  Flow rate: 6–10 L/min
  Minimum pressure differential: 0.21 bar (inlet-outlet)
  Max pressure: 120 PSI (8 bar); coolant volume in module: 0.25 L
• Battery Side
  Max power: 62.5 kW
  Voltage range: 300–1500 Vdc
  Constant power: 350–1000 Vdc
  Current range: 0–178.6 A
  Voltage accuracy: ≤ ±0.5%
  Current accuracy: ≤ ±1%
  Current sharing: ≤ ±5%
  Standby power: < 8 W
• Bus Side
  Max power: 62.5 kW
  Voltage range: 400–1500 Vdc
  Constant power: 500–1500 Vdc
  Current range: 0–125 A
  Voltage accuracy: ≤ ±0.5%
  Current accuracy: ≤ ±1%
  Current sharing: ≤ ±5%
  Standby power: < 8 W
• Control
  Communication: CAN bus; up to 40 modules in parallel
  Indicators: Green = normal, Yellow = alarm, Red = fault
  Addressing: automatic address identification; panel dial for group setting
  ESTOP: 5V/12V dry-contact trigger; output falls from 1500 Vdc to <60 Vdc within 300 ms
• Alarm & Protection
  Input OVP/UVP: automatic shutdown and standby; manual startup required after clearance
  Output OVP: automatic shutdown; manual restart when normal
  Overcurrent/short-circuit: automatic shutdown and standby; manual restart required
  Overtemperature: automatic shutdown and standby; manual restart required
• Reliability & Safety
  Certifications: TUV CE, cTUVus
  EMC/EMI: EN IEC 61851-21-2:2021 Class B
  Safety: IEC 61851-1:2023, EN IEC 61851-1:2019, EN 61851-23:2014, IEC 61851-23:2023, UL 2202:2022
  MTBF: > 400,000 h
• Mechanical
  Dimensions (W × D × H): 300 × 453 × 123 mm
  Weight: ≤ 30 kg

Applications

• Battery energy storage systems (BESS)
• DC microgrids and renewable integration
• Second-life battery cascade utilization and repurposing
• High-voltage DC charging and industrial DC power systems