Product Specification

Intelligent DC Power Distribution Unit ET48150S5E38 for Telecom Base Station Solar Sites BLVD LLVD Breakers Remote Monitoring

Product Description

This is a highly integrated intelligent DC power distribution system designed to act as the central hub for outdoor telecom power. It combines integrated AC/DC rectification, solar MPPT control, battery management, and comprehensive load protection into a single 19-inch rack-mounted unit. The system ensures reliable power conversion and distribution while enabling remote management through standard communication interfaces, significantly simplifying site deployment and monitoring.

Applications

Specifically designed for hybrid solar-powered telecom base stations, outdoor communication cabinets, railway power control systems, and remote micro-grid sites where mixed AC and solar energy sources are utilized to power critical 48V DC telecom loads.

Technical Parameters

Model: ET48150-S5E38

Input Configurations: 1x AC Input (QF1 63A/2P) and 3x Solar Inputs (QF2-4 25A/2P with MPPT slots)

Output Configurations: 11x LLVD circuit breakers (F1-F11), 6x BLVD circuit breakers (F12-F17)

Battery Outputs: 4x Battery breaker slots (BAT1-BAT4)

Protection: Integrated AC/DC Surge Protective Devices (SPD)

Rectifier Slots: 3x Rectifier module slots (RECT1-RECT3)

Communications: Standard LAN and RS485 ports for smart monitoring (Power system monitoring unit)

Electrical Schematic: Power System Electrical Schematic Diagram (as shown on label)

Rated Voltage: 48V DC system (based on standard telecom power)

Features

Hybrid Energy Ready: Pre-wired to support 1 AC power source and 3 solar inputs (MPPT slots), allowing for easy integration of green energy systems.

Smart Load Management: Features distinct LLVD (Low Voltage Load Disconnect) and BLVD (Battery Low Voltage Disconnect) sections to prioritize critical loads and protect battery life during outages.

Modular Expansion: Designed with 3 empty rectifier slots and 3 MPPT slots, allowing capacity to be increased seamlessly as power demands grow.

Comprehensive Monitoring: Includes an intuitive built-in control panel with LAN/RS485 interfaces, enabling intelligent remote management, real-time data viewing, and alarm notifications.

Enhanced Safety: Equipped with high-quality CHNT circuit breakers and built-in AC/DC surge protection to prevent damage from lightning strikes and power fluctuations.

Operation Guide

Mounting: Install the unit securely on a 19-inch rack rail inside the outdoor cabinet using the provided mounting brackets.

Wiring: Connect the incoming AC mains to the QF1 breaker. Connect solar panels to the Solar1/2/3 terminals. Wire battery banks to the BAT1-4 terminals.

Load Connection: Connect critical telecom loads to the BLVD breakers (F1-F11) and non-critical loads to the LLVD breakers (F12-F17), following the attached electrical schematic.

Configuration: Upon connecting the AC power supply, the monitoring unit powers up automatically (no physical switch required). Use the LAN/RS485 port to configure the system parameters via the web interface or local display, setting thresholds for temperature, voltage, and battery disconnect points.

Maintenance: Periodically inspect all breaker connections for tightness and check the SPD indicator modules (green indicates protection is active; red indicates replacement is need.