EG4 GridBOSS Micro-Grid Interconnection Device (MID) V2

Streamline & Optimize Your Energy Storage System (ESS)

The EG4 GridBOSS MID V2 simplifies energy management by consolidating up to 10 components into a single unit, eliminating the need for multiple breakers, transfer switches, and complex wiring. Designed for seamless integration with utilities, generators, inverters, and loads, the GridBOSS MID provides centralized control, effortless installation, and real-time remote monitoring—all in one compact, UL-certified device.

Version Update: The GridBOSS MID V2 now includes a 90A breaker, specifically designed for use with the EG4 FlexBOSS 21.

Key Features & Benefits

One-Point ESS Control – Manage utilities, inverters, generators, and loads from a single device.
Simplified System Design – Eliminates transfer switches and multiple breakers, reducing complexity.
Smart Load & Power Shedding – Automatically optimizes power distribution to maximize battery efficiency.
200A Service Entrance – Equipped with a 22 kAIC main breaker for seamless grid and generator integration.
Real-Time Monitoring – Access system data and adjust settings remotely via the EG4 app or online monitoring platform.
Flexible Breaker Configuration – Supports:

• 1 Generator (up to 125A)
• 3 Hybrid Inverters (up to 90A each)
• 4 Smart Ports (ranging from 60A to 125A)

Technical Specifications

Voltage: 120/240VAC
Maximum Current: 200A
Hybrid Inverter Ports: 3 (up to 90A each)
Smart Ports: 4 (up to 125A each)
Operating Temperature: -40°F to 140°F
Warranty: 10 years
Certifications: UL Certified | Compatible with Eaton 200A CSR25K main breaker

Note: The 200A main breaker is not included and must be purchased separately.

Important EG4 GridBOSS Breaker Information

Each EG4 GridBOSS MID includes:
90A Breaker – Compatible only with the EG4 FlexBOSS21.
Smart Port Breakers – Available in 30A, 40A, 60A, and 80A.

Additional Breakers Required (Sold Separately):

• 70A Breaker required for use with the EG4 18kPV Hybrid Inverter.
• 50A Breaker required for use with the EG4 12kPV Hybrid Inverter.
• 125A Breaker can be used with either the Smart Port or Gen Port.

Notice: To maintain UL certification, copper wiring must be used inside the GridBOSS unit.

Why Choose the EG4 GridBOSS MID V2?

The GridBOSS MID V2 simplifies energy management, enhances system efficiency, and ensures safer, smarter power distribution. Whether you're operating off-grid, grid-tied, or using hybrid backup solutions, this device is built to optimize your energy system with ease.

Upgrade Your ESS Today – Power your home or business with confidence using the EG4 GridBOSS MID V2.