18000W 48V Low-Frequency Off-Grid Solar Inverter – 120V/240V Split-Phase

Description

18000W 48V Low-Frequency Off-Grid Solar Inverter – 120V/240V Split-Phase

The 18000W 48V Low-Frequency Off-Grid Solar Inverter from Global Ace Solar delivers powerful and dependable energy conversion for large residential, agricultural, commercial, and off-grid solar power systems. Featuring an impressive 18,000W continuous output, 54,000W surge capability, and 120V/240V split-phase pure sine wave output, this inverter is designed for demanding electrical applications.

Built with low-frequency transformer technology and advanced digital signal processing (DSP) control, this inverter combines substantial power capacity with integrated solar charging, automatic generator start, AC battery charging, and remote monitoring capabilities.

Backed by a 5-year warranty, this inverter provides a high-capacity power solution for independently operated solar energy systems.

18,000W Continuous Power with 54,000W Surge Capacity

With an 18kW continuous rated output, this inverter is designed to support substantial electrical loads in appropriately sized off-grid installations.

Its 54kW surge rating for up to 20 milliseconds provides additional short-duration starting capacity for compatible motors and equipment.

According to the manufacturer’s specifications, the inverter is capable of starting compatible electric motors rated up to 9 horsepower.

120V/240V Split-Phase Pure Sine Wave Output

The inverter delivers 120V/240V split-phase AC power, making it suitable for appropriately configured electrical systems requiring both 120V and 240V circuits.

Selectable output voltage settings include 104V, 110V, 115V, and 120V AC, along with corresponding 208V, 220V, 230V, and 240V AC options.

Pure sine wave output provides clean AC power for compatible household appliances, electronics, motors, and other electrical equipment.

Heavy-Duty Low-Frequency Transformer Technology

This inverter incorporates low-frequency transformer technology with DSP control to deliver substantial continuous power and short-duration surge capacity.

Its transformer-based design makes it well suited for larger off-grid applications where high electrical demand and motor-starting capability are important considerations.

Standalone Off-Grid Inverter Operation

The 18000W inverter operates as a standalone 120V/240V split-phase power system, providing up to 18kW of rated output from a single unit.

Important: This model does not support parallel operation or stacking multiple inverter units together to increase output capacity.

Integrated 240A MPPT Solar Charge Controller

The built-in MPPT solar charge controller helps optimize solar energy collection and manages charging for a compatible 48V battery bank.

By integrating solar charging directly into the inverter, the system reduces the need for separate external solar charge controllers.

Solar Charging Specifications:

• Maximum PV Array Power: 14,000W
• Maximum PV Charging Current: 240A
• MPPT Operating Voltage: 60–245V DC
• Maximum PV Open-Circuit Voltage: 250V DC
• Battery Voltage: 48V DC

Solar array design must remain within the inverter’s maximum PV voltage and power specifications, including during cold-weather conditions.

Automatic Generator Start and AC Charging Support

The inverter features automatic generator-start functionality, allowing a properly configured compatible generator to provide backup power when required.

When solar production is insufficient, the inverter supports compatible generator or utility AC input for additional battery charging and electrical power support.

Configurable LCD settings allow users to establish AC and solar input priorities according to their system requirements.

Generator and AC Charging Features:

• Automatic generator-start functionality
• Compatible generator AC input
• Configurable AC and solar input priority
• AC Input Voltage: 208V/220V/230V/240V AC
• AC Input Frequency: 50Hz/60Hz automatic sensing
• Maximum AC Charging Current: 100A
• Maximum Combined PV and AC Charging Current: 340A
• Typical Transfer Time: 10 milliseconds

WiFi/GPRS Remote Monitoring

Optional WiFi or GPRS monitoring allows compatible remote access to system operating information through the PVbutler web platform and mobile application.

Remote monitoring capabilities can help users review system performance and monitor energy operation without remaining physically beside the inverter.

Battery Management and Communication

The inverter includes USB, RS485, and CAN communication interfaces for compatible monitoring equipment and battery management systems (BMS).

Communication compatibility depends on the connected battery system and supported communication protocols.

Key Features and Technical Specifications

• Brand: Global Ace Solar
• Manufacturer Model: Sunrino M18000L-48SP-M
• Rated Output Power: 18,000W (18kW)
• Surge Power: 54,000W for 20 milliseconds
• Motor Starting Capability: Up to 9HP
• Battery Voltage: 48V DC
• AC Output: 120V/240V Split-Phase
• Selectable Output Voltages: 104V/110V/115V/120V and 208V/220V/230V/240V AC
• Output Frequency: 50Hz/60Hz ±0.1Hz
• Output Waveform: Pure Sine Wave
• Inverter Technology: Low Frequency with Transformer
• Control Technology: DSP
• Solar Charge Controller: Built-in MPPT
• Maximum PV Array Power: 14,000W
• MPPT Operating Voltage: 60–245V DC
• Maximum PV Open-Circuit Voltage: 250V DC
• Maximum PV Charging Current: 240A
• Maximum AC Charging Current: 100A
• Maximum Combined Charging Current: 340A
• Automatic Generator Start: Yes
• Generator AC Input: Supported
• Parallel Operation: Not Supported – Standalone Only
• Monitoring: Optional WiFi/GPRS
• Communication Interfaces: USB, RS485, CAN
• Typical Transfer Time: 10ms
• Dimensions: 780 × 420 × 250 mm
• Net Weight: 105 kg (approximately 231.5 lbs)
• Operating Temperature: 0°C to 55°C
• Storage Temperature: -20°C to 60°C
• Warranty: 5 Years

Ideal Applications

The Global Ace Solar 18kW low-frequency inverter is designed for high-capacity off-grid energy systems, including:

• Large off-grid homes and residential properties
• Remote homes, cabins, and independent properties
• Agricultural facilities and ranch operations
• Workshops and commercial facilities
• Battery-based solar energy installations
• Solar systems with generator backup
• Applications requiring substantial motor-starting capacity

Build a High-Capacity Off-Grid Solar System

Pair this 18000W inverter with a properly sized 48V battery bank, compatible solar panels, and correctly rated electrical protection equipment to create a powerful off-grid energy system.

Available through Geo Eco Systems, supplying solar inverters, lithium battery storage, solar panels, and renewable energy equipment for residential and commercial applications.

5-Year Warranty

This Global Ace Solar inverter includes a 5-year warranty, providing additional confidence in your investment in off-grid power equipment. Warranty coverage is subject to the applicable warranty terms and conditions.

Installation Note: Before installation, verify solar array voltage, battery compatibility and discharge capacity, generator-start connections, grounding, conductor sizing, overcurrent protection, and all applicable electrical requirements. Follow the manufacturer’s installation manual and applicable electrical codes.