Description
Eastman 5.5kW Hybrid Inverter Overview
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5.5kW Pure Sine Wave Output: Delivers clean, stable power suitable for sensitive electronics, appliances, and motor loads .
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48V Battery System: Compatible with both lead-acid and lithium-ion batteries, offering flexibility for various installation types and budgets .
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Hybrid Functionality: Intelligently manages energy flow between solar panels, batteries, and grid to optimize self-consumption and reduce electricity bills .
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Remote Monitoring Included: Comes complete with Wi-Fi dongle for real-time monitoring and control via mobile app or web portal .
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Automatic Transfer Switch: Provides uninterrupted power supply by switching seamlessly between solar, battery, and grid within <10ms .
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User-Friendly LCD Display: Large LCD screen provides easy access to system information, settings, and performance data .
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Comprehensive Protection: Built-in safeguards against overload, short circuit, over-temperature, and battery low voltage .
Eastman 5.5kW Hybrid Inverter Technical Specifications
| Specification | Value |
|---|---|
| Model | EM 5548-S1-ECO |
| Rated Power | 5.5 kW |
| Battery Voltage | 48V DC |
| Output Voltage | 230V AC ±5% |
| Output Frequency | 50/60 Hz (selectable) |
| Efficiency | Up to 93% |
| Maximum PV Array Open Circuit Voltage | 500Vdc |
| Battery Compatibility | 48V lead-acid or lithium-ion batteries |
| Communication Interface | RS232/USB, Wi-Fi dongle included |
| Operating Temperature Range | -10°C to 50°C |
| Dimensions | Standard compact housing |
| Transfer Time | <10ms (typical) |
| Protection Features | Overload, short circuit, over-temperature, battery low voltage |
How It Works
The Eastman EM 5548-S1-ECO hybrid inverter is designed to maximize the efficiency of solar energy systems by intelligently managing the flow of energy between solar panels, batteries, and the grid :
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During Peak Solar Generation: The inverter prioritizes powering connected loads and charging the batteries using excess solar energy .
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When Solar Production is Insufficient: It automatically draws energy from the batteries to maintain continuous power supply .
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When Batteries are Low: The inverter seamlessly switches to grid power, ensuring uninterrupted operation of connected loads .
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Remote Monitoring: The included Wi-Fi dongle enables real-time tracking of system performance, alerts, and remote adjustments via mobile app or web portal .
Key Features Explained
Pure Sine Wave Output
The Eastman 5.5kW produces clean, stable pure sine wave power that matches or exceeds grid quality . This ensures:
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Safe operation of sensitive electronics, computers, and medical equipment
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Proper functioning of induction motors (fridges, pumps, power tools)
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No audible hum in audio equipment or LED lighting
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Efficient operation of all household appliances
Remote Monitoring via Included Dongle
Unlike many inverters that require separate purchase of monitoring hardware, the EM 5548-S1-ECO comes complete with a Wi-Fi dongle for instant connectivity . Benefits include:
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Real-time system performance tracking from anywhere
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Instant alerts for faults or unusual conditions
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Historical data analysis for optimizing energy usage
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Remote parameter adjustments without physical access
Automatic Transfer Switch
The built-in automatic transfer switch provides seamless power transition between sources :
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<10ms transfer time ensures sensitive electronics don’t reset during switchover
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Uninterrupted power during grid outages
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Automatic reconnection when grid returns
Configurable Operating Modes
User-selectable charging modes optimize energy usage based on your priorities :
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Solar Priority: Solar charges batteries first, grid as backup
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Grid Priority: Grid maintains batteries, solar supplements
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Battery Priority: Maximizes battery usage before drawing from grid
Comprehensive Protection
Built-in safeguards ensure long-term reliability :
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Overload protection
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Short circuit protection
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Over-temperature protection
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Battery low voltage disconnect
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Reverse polarity protection
Applications
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Home Backup Power: Keep essential loads running during grid outages .
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Grid-Tied Solar: Maximize solar self-consumption with or without batteries .
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Off-Grid Systems: Power remote homes, cabins, and workshops .
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Small Business Backup: Protect computers, servers, and equipment from outages .
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Load Shifting: Store solar energy during day for nighttime use .
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Rural Electrification: Reliable power for areas with unreliable grid supply .
Installation Guidelines
Wiring Recommendations
| Component | Recommended Cable Size |
|---|---|
| Battery Cables | 35mm² – 50mm² (copper) |
| PV Array Cables | 4mm² – 6mm² (depending on distance) |
| AC Input/Output | 4mm² – 6mm² |
| Grounding | 6mm² – 10mm² earth wire |
Installation Steps
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Location: Mount in a clean, dry, well-ventilated area away from direct sunlight and moisture. Allow minimum 200mm clearance above and below for airflow.
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Mounting: Secure the inverter to a vertical wall using appropriate fixings for the weight.
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Battery Connection: Connect battery cables with correct polarity. Tighten terminals securely. Install appropriate DC breaker/fuse between battery and inverter .
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PV Connection: Connect solar array to PV input terminals, observing correct polarity. Ensure array voltage stays within limits. Only use single-crystalline, polycrystalline with class A-rated, or CIGS modules .
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AC Connection: Connect AC input from grid/generator and AC output to loads. Install appropriate AC breakers and lightning arrester .
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Grounding: Connect earth ground to the grounding terminal as per local electrical codes.
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Commissioning: Disconnect all wiring before maintenance. Use separate DC over-current protector for battery connection .
Operation Guide
Front Panel Controls
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On/Off Switch: Located on the bottom of the case—simply press to turn unit on or off .
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LCD Display: Comprehensive display for monitoring system status and adjusting settings .
Setting Charging Priority
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Navigate to charging settings via LCD menu
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Select desired mode:
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Solar first, grid second
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Grid first, solar second
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Solar only
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Save and exit
Dry Contact Signal
The inverter delivers a signal to an external device when the battery reaches a warning level, enabling automatic generator start or notification systems .
Compatible PV Modules
The EM 5548-S1-ECO is compatible with :
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Single-crystalline modules
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Polycrystalline modules with class A-rated cells
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CIGS modules
Important: Grounded PV modules should not be used to avoid malfunctions .
Maintenance
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Visual Inspection: Periodically check all connections for tightness and signs of corrosion.
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Clean Exterior: Wipe enclosure with dry cloth—do not use liquids or solvents.
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Air Vents: Ensure cooling fans and vents remain free of dust and obstructions.
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Firmware: Check for available updates via the monitoring app.
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Battery Connections: Inspect battery terminals monthly for tightness.
Why Choose Eastman 5.5kW?
The Eastman EM 5548-S1-ECO offers the ideal balance of power, features, and value for home and small business solar installations :
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Included Monitoring: Wi-Fi dongle comes standard—no extra cost
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48V System: Optimal balance of efficiency and safety for residential use
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Proven Reliability: Built with robust components for long service life
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Versatile Compatibility: Works with both lead-acid and lithium batteries
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User-Friendly: Intuitive LCD display and simple configuration
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Comprehensive Protection: Multiple safeguards for peace of mind
Contact Us
Ready to take control of your energy with the Eastman 5.5kW hybrid inverter? Contact our team today for expert advice, pricing, or to discuss your specific requirements.
📞 Call / WhatsApp: 0794485343
📧 Email: info@globussolar.com
🌐 Web: www.globussolar.com
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