High Protection Outdoor Energy Cabinet IP65 38U with Scalable 18kW 300A Rectifier

High Protection Outdoor Energy Cabinet IP65 38U with Scalable 18kW 300A Rectifier

Product Overview

The ET7575200A-38U is a fully integrated outdoor power system that pairs a highly resilient IP65 enclosure with a modular, high-efficiency DC rectifier platform. Designed to act as the primary energy backbone for critical telecom services, this system combines robust physical protection with intelligent power management, ensuring maximum site availability while minimizing operational expenditure.

Scalable and Intelligent Power Core

At the center of the cabinet is an 18kW/300A rectifier system designed for flexibility and future-proofing. The power sub-rack provides six slots for hot-swappable rectifier modules. Operators can start with a minimal configuration and scale up to six 3,000W modules (achieving 18kW) based on current load requirements, or opt for 4,000W modules to reach a maximum capacity of 24kW.

The system operates with a nominal -53.5VDC output (adjustable from -43V to -58V) and features an efficiency rating of ≥96%, significantly reducing thermal stress inside the cabinet. Managed by the advanced MC2900 controller, the system offers comprehensive remote monitoring via LAN, USB, RS485, and SNMP protocols, enabling real-time fault detection and battery management. The DC distribution is intelligently tiered into LLVD (non-critical) and BLVD (critical) breakers, ensuring that essential transmission gear remains powered during extended battery discharges.

IP65 Protection Grade

Unlike standard outdoor cabinets, this enclosure is rated at a stringent IP65, offering complete protection against dust ingress and low-pressure water jets from any direction. Constructed from galvanized steel with internal insulation, the cabinet is designed to endure extreme weather.

To manage the internal climate, the enclosure uses a dual cooling strategy: a 1000W DC48V air conditioner for primary active cooling, supplemented by an emergency fan system with a temperature controller for redundancy. The 38U of 19-inch rack space provides ample room for power sub-racks (ranging from 3U to 10U), telecom equipment, and battery banks.

Maintenance and Accessibility

Despite its robust sealing, the cabinet is designed for practicality. The single front door features a three-point locking system and inner hinges for security and durability. The power system itself is engineered for front maintenance, with bottom-in/top-out cable routing that keeps the installation organized and prevents water from tracking down cables into the enclosure.

Technical Specification