12 Year Warranty from BigBattery

Skip to product information
1 of 4

EG4

EG4 GridBOSS 200A MID

EG4 GridBOSS 200A MID

Regular price $1,999.00 USD
Regular price $2,399.95 USD Sale price $1,999.00 USD
Sale Sold out
California sales tax added at checkout. No sales tax charged on orders shipped outside California. Shipping calculated at checkout.
Buying Options
Quantity

EG4 GridBOSS 200A MID

Product Summary:

The EG4 GridBOSS 200A MID is an advanced power gateway and micro-grid interconnect device designed to simplify and optimize modern energy storage systems. Rated for 200 A service entrance, it consolidates up to ten system components into one centralized unit, reducing installation complexity, hardware requirements, and overall system cost. Ideal for whole-home backup, solar ESS, micro-grids, and commercial power systems, the GridBOSS delivers intelligent load management and seamless coordination between utilities, inverters, generators, and connected loads.

Supporting up to three 90 A inverters and four programmable smart load ports with AC coupling capability, the GridBOSS eliminates the need for additional transfer switches or breakers. With real-time monitoring and remote management through EG4’s software—tracking energy flow across up to eight circuits—the EG4 GridBOSS MID provides unmatched system visibility, faster installs, and a cleaner, more efficient ESS integration for both on-grid and off-grid applications.

Items Included

EXCLUDING BREAKERS
Downloads & Specifications

Inverter Specifications

Nominal Voltage:120V AC / 240V AC
Frequency:60 Hz
Max. Continuous Current:200A
Service Entrance Rating:200A
Nominal Voltage:120V AC / 240V AC
Frequency:60 Hz
Max. Continuous Current:125A
Nominal Voltage:120V AC / 240V AC
Frequency:60 Hz
Max. Continuous Current:200A
Number of Ports:3
Nominal Voltage:120V AC / 240V AC
Frequency:60 Hz
Max. Continuous Current (per port):70A
Supported Inverters:EG4 12kPV, EG4 18kPV, & EG4 FlexBOSS21

Number of Ports:4
Nominal Voltage:120V AC / 240V AC
Frequency:60 Hz
Max. Continuous Current (per port):125A / 80A / 60A / 60A
Internal Busbar Rating:350A
Internal Fuse Rating:315A
Operating Temperature Range:-40ºF – 140ºF (-40ºC – 60ºC)
Relative Humidity:0 – 100%
Altitude:<6,561 ft (2000 m)
Protection Rating:IP14 / NEMA 3R
Communications:RS485 / CANBus / WiFi
Weight:55 lbs (25 kg)
Depth:7 in (178 mm)
Width:19.7 in (501 mm)
Height:31.5 in (800 mm)

Inverter Downloads

SKU#:INV033
Spec Sheet:DownloadDOWNLOAD
User Manual:DownloadDOWNLOAD
System Wiring Diagrams:DownloadDOWNLOAD
CEC Listing- EG4 GridBOSS 200A MID:Go to linkGO TO LINK

Warranty

10-Year EG4 Manufacturer Warranty


View full details

Unlocking Battery Potential: BMS Tools v1.0 for Seamless Communication with Multiple LL Batteries

Safety Like You've Never Seen It! | EG4's Total Rapid Shutdown

BMS Tools MAC OS Tutorial

BigBattery BEST INVERTER ON THE MARKET?? || EG4 FlexBOSS18

Utilize Small Generators Safely and Efficiently with EG4's Generator Boost! | Gen Boost Overview

EG4 Inverter Firmware Update Guide | Web Monitor and Mobile App

When Should You Consider an EG4 System?