450A High-Capacity Output 24kW Total Power 96.5% High Efficiency Telecom DC Power System Subrack Power System

The ETP48400-C4A1 is a high-capacity subrack-style embedded DC power system tailored for H uawei telecom equipment. Designed for modern communication sites including 5G base stations and large-scale machine rooms, it converts AC power to a stable 48V DC output, with a maximum output current of 450A and total power up to 24kW. The system supports both single-phase and three-phase AC input and is compatible with multiple specifications of rectifier modules.

Equipped with intelligent monitoring and battery management units, it features a modular hot-swap design, natural heat dissipation, and multi-channel power distribution. It also realizes independent load power-off control and precise power metering for each branch. With its compact subrack structure, easy installation, and comprehensive protection functions, it is an ideal power solution for new site construction and old equipment expansion in the telecom industry.

• Ultra-Large Load Capacity: Max 450A DC output and 24kW total power, fully meeting the power demands of large telecom equipment clusters and 5G base stations.
• Dual AC Input Compatibility: Supports 220V single-phase and 220/380V three-phase AC input, with a wide working voltage range to adapt to various complex power grid environments.
• High Efficiency & Energy Saving: Matched rectifier modules achieve up to 96.5% conversion efficiency. The intelligent module sleep function automatically shuts down redundant modules under low load, effectively reducing energy consumption.
• Natural Heat Dissipation: Adopts fanless natural cooling design, lowering failure rate, operating noise, and daily maintenance workload, suitable for long-term 24-hour continuous operation.
• Hot-Swap Modular Design: Rectifier and monitoring modules support hot plugging and replacement. Maintenance can be done without shutting down the system to avoid service interruption.
• Intelligent Distribution Management: Supports independent power-off control for different loads and precise power metering of each branch, facilitating refined power operation and management.
• Professional Battery Management: Built-in dedicated battery management circuit to optimize charge and discharge cycles, extend battery service life, and ensure reliable backup power.
• Multi-Level Lightning & Safety Protection: Integrated AC/DC surge protection, overvoltage, overcurrent, and short-circuit protection to safeguard equipment in harsh outdoor and indoor environments.
• Remote Monitoring Function: Comes with standard communication interfaces, supporting remote status viewing, fault alarm, and online management for unattended machine rooms.

• 5G/4G mobile communication base stations and cell sites
• Large indoor telecom machine rooms and backbone transmission equipment
• FTTX large-scale broadband access network systems
• Data center DC power distribution and backup power projects
• Renovation and capacity expansion of existing communication power stations

• Super High Power Capacity: 450A large current and 24kW total power are tailored for high-load telecom scenarios such as 5G base stations.
• Wide Grid Adaptation: Dual single/three-phase input and wide voltage range suit power supply standards in different regions.
• Low Operation Cost: High efficiency plus intelligent sleep technology reduce long-term power consumption and operating expenses.
• Low Failure Risk: Fanless natural cooling design reduces vulnerable parts and improves equipment stability.
• Easy O&M: Hot-swap modules and front maintenance design simplify on-site inspection and replacement work.
• Smart Management: Branch load control and power metering functions realize refined operation for power stations.
• Rugged Performance: Ultra-wide temperature and altitude resistance plus multi-protection design adapt to various harsh deployment environments.