Inverters

EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty

$ 1,799.99USD · price may vary

Model: 1511048-V3.1
Specifications: 0

Overview

Simplify your solar and backup power system with the EG4 GridBOSS MID v3.1 – a smart, all-in-one microgrid interconnect solution. Designed for seamless integration of utility, inverters, generators, and smart loads, the GridBOSS drastically reduces complexity, installation time, and equipment costs for home energy storage systems.

With a 200A service entrance rating, four smart load ports, and support for up to three hybrid inverters and a 125A generator input, this unit consolidates multiple components into one powerful hub. Whether you’re building an off-grid setup or a hybrid backup system, the GridBOSS delivers unmatched flexibility, safety, and performance—while enabling full remote monitoring via EG4's mobile platform.

Now available in two variants:

GridBOSS MID Only – Ideal if you already have compatible breakers.

GridBOSS MID + 90A Breaker Kit – Perfect for streamlining install with a ready-to-go 90A breaker included.

Note: Additional breakers for smart ports, hybrid inverters, and generator input are sold separately.

Key Features & Benefits:

All-in-One Microgrid Interconnect – Combines up to 10 system components into one streamlined unit.

200A Service Entrance Rated – Supports full home power with UL-rated safety and reliability.

Smart Load Control – 4 configurable smart ports (125A, 80A, 60A, 60A) for load prioritization and AC coupling.

Advanced Load Management – 5 programmable drivers for intelligent energy distribution and load shedding.

Supports Up to 3 Hybrid Inverters – Compatible with EG4 12kPV, 18kPV, FlexBOSS18, and FlexBOSS21.

Integrated Generator Input – Handles up to 125A with auto transfer and protection.

Remote Monitoring Ready – Wi-Fi, RS485 & CAN integration with real-time control via EG4 app.

Outdoor Rated (NEMA 3R) – Built to handle harsh conditions (-40°F to 113°F).

DIY-Friendly Design – Save up to $7,500 in labor and components with simplified installation.

Certified & Covered – UL1741, UL67, UL916 compliant with a 10-year warranty for peace of mind.

Ideal For:

Off-grid & hybrid solar power systems

Whole home or partial home backup setups

Reducing installation time and cost in complex ESS configurations

Technical Specs Overview:

Input Voltage: 120/240V AC, 60Hz

Service Rating: 200A | 22kAIC main breaker (CSR2200N required*)

Hybrid Ports: 3 (90A each)

Generator Input: 125A max

Smart Load Ports: 4 configurable (125A, 80A, 60A, 60A)

Operating Temp: -40°F to 113°F

Dimensions: 31.5" x 19.7" x 7"

Weight: 55 lbs.

Certifications: UL1741, UL67, UL916, FCC Part 15, CSA

Warranty: 10 Years

User Manual / Documents:

EG4 GridBOSS MID v3.1 User Manual

EG4 GridBOSS MID v3.1 Specifications

Reading the specifications

Detailed specifications for EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty have not been published yet. EG4 lists this inverter in the Inverters, and we add fields as the manufacturer releases them — in the meantime, ask your distributor for the datasheet before ordering.

For an inverter, the figures that matter most are the MPPT voltage window, which decides how many panels go in a string, peak and weighted (European/CEC) efficiency, typically 96–98.5%, topology — on-grid, off-grid, hybrid or micro and continuous AC output in kW, which caps the load you can run at once. It is the component that decides what a solar system can do: how much power you can draw at once, whether you can export to the grid, whether the system keeps running in a blackout, and how well the panels and battery are managed day to day.

Before you buy an inverter

The checks below apply to any inverter. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Size the inverter against the loads you need to run simultaneously, not against the total wattage of every appliance in the building — a 5 kW inverter comfortably runs a fridge, fans, lights and a couple of ACs, but not all of them plus a water pump starting at the same time.
Keep the panel array between roughly 1.0 and 1.3 times the inverter's rating. Slight oversizing (a higher DC-to-AC ratio) captures more energy on cloudy mornings and winter days; going far beyond it wastes generation through clipping.
Check the surge rating if you run motors — deep-well pumps, compressors and older air conditioners can draw two to three times their running current for a few seconds at start-up.
Choose a hybrid inverter if a battery is in your plan now or later; retrofitting storage onto a pure grid-tie inverter usually means buying a second unit or an AC-coupled battery system.

What people get wrong

Overlooking the IP rating. An outdoor installation needs at least IP65; indoor-rated units mounted outside fail early.
Buying on peak-watt price alone. A cheap inverter with a narrow MPPT window forces awkward string layouts and can strand a portion of the array.
Ignoring the ambient temperature rating. Inverters derate in heat, so a unit rated 5 kW at 25 °C may deliver noticeably less on a hot roof-adjacent wall at 45 °C.

Price and availability in Canada

EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty is listed at $ 1,800 (USD) for Canada. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in Canada: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports EG4 locally before ordering.

EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty — frequently asked questions

How much does EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty cost?

EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty is listed at $ 1,800 (USD) for Canada. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

Who makes EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty?

EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty is a EG4 product, listed under inverters with model reference 1511048-V3.1. The EG4 brand page lists the rest of its range so you can compare across the catalogue.

Is EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty right for my system?

That depends on what it has to connect to. For an inverter, check surge or peak rating, which covers the brief inrush of motors and compressors, maximum PV input and the number of MPPT trackers, which set how many panel strings you can connect and the MPPT voltage window, which decides how many panels go in a string against the rest of your equipment before price enters the decision. Size the inverter against the loads you need to run simultaneously, not against the total wattage of every appliance in the building — a 5 kW inverter comfortably runs a fridge, fans, lights and a couple of ACs, but not all of them plus a water pump starting at the same time.

Where can I buy EG4 GridBOSS MID v3.1 | 200A Microgrid Interconnect Device | 4 Smart Ports + Gen Support | UL Certified | 10-Year Warranty in Canada?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in Canada — buying in-channel is what keeps the manufacturer's warranty valid.

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