300A 18kW 48V DC Power System Indoor Power Cabinet for Telecom and Data Center Applications

The Vertiv (formerly Emerso n) NetSure 731 C62 is a carrier-grade standalone indoor cabinet DC power system designed for high-reliability scenarios including telecom access networks, data centers, banks, critical equipment rooms, and enterprise communication infrastructure. It adopts a fully integrated cabinet structure, converting wide-range AC input into stable, adjustable -48V DC output with a maximum capacity of 300A / 18kW, providing 24/7 uninterrupted power for core communication and IT equipment.

Equipped with high-efficiency R48-3000e3 rectifier modules and an intelligent M530S controller, this system features full protection, remote monitoring, intelligent battery management, and flexible configuration. It is the preferred high-power cabinet power solution for mission-critical applications requiring high stability and easy operation.

• Standalone integrated cabinet design, ready for use without rack installation, convenient for indoor deployment
• Standard cabinet size 600×600×1600mm, compact footprint and high space utilization
• Wide AC input range 85–300VAC, 45–65Hz, strong adaptability to unstable grids and generator power
• Stable adjustable DC output -43.2V to -57.6VDC, nominal -53.5VDC, max output current 300A, rated power 18kW
• Supports up to 6× R48-3000e3 high-efficiency rectifier modules, peak efficiency 95.5%, power factor ≥0.99
• Hot-swappable rectifier modules, plug-and-play replacement without system shutdown
• Intelligent M530S monitoring unit: real-time data display, fault alarm, remote control and communication
• Comprehensive battery management: BLVD/LLVD, temperature compensation, online test, prolongs battery life
• Full electrical protection: OVP, OCP, SCP, OTP, LVBD, all-round surge and lightning protection
• Wide operating temperature -40°C to +65°C, suitable for various indoor environments
• Flexible load distribution with circuit breakers, safe and reliable
• Compliant with CE, UL, NEBS, and global telecom safety standards

• Telecom access network and core communication equipment
• Data center IDC and edge computing equipment rooms
• Bank, finance, and critical enterprise IT loads
• 4G / 5G macro base stations and indoor coverage sites
• Industrial control and automation critical power supply
• Government, militar y, and high-reliability indoor communication sites

Founded in 2008, Shenzhen Zhongchenhuahui Electric Technology Co., Ltd. focuses on R&D and sales of telecommunication and data center supporting products. Headquartered in Bao'an, Shenzhen, we have partners across the country.

We supply network energy equipment including telecom power systems, precision distribution cabinets, and integrated cabinets (customization available) from ELTEK, H uawe i, Verti v (formerly Emerso n), ZTE, and CE+T. Our product range also covers UPS, precision air conditioners, batteries, and other data room accessories from well-known brands.

All products are strictly tested before delivery. We offer reliable after-sales service and instant spare parts support within warranty to cut your time and costs. Custom OEM/ODM services are also available.