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Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

Price Match Guarantee 💲 Fast & Free Shipping 📦 No Sales Tax 💵 Post Purchase Support 🤝 Free Replacement Parts 🛠️ Dealer Warranty 👷🏼 Extended Warranty!

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EG4 GridBOSS MID | 200A Service Entrance

EG4 GridBOSS MID | 200A Service Entrance

SKU EG4GRIDBOSS
Save $423.52
$2,823.47
$2,399.95

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EG4 GridBOSS Micro-Grid Interconnection Device (MID)

The EG4 GridBOSS MID simplifies your Energy Storage System (ESS) by consolidating up to 10 components into a single, powerful unit. Designed to seamlessly connect utilities, generators, inverters, and loads, it offers centralized control, easy installation, and real-time remote monitoring.

EG4 GridBOSS MID | 200A Service Entrance Features

  • One-Point ESS Control: Connect and manage utility, inverters, generator, and loads from a single device.
  • Reduced Complexity: Replace breakers, transfer switches, and more with one compact solution.
  • Smart Load & Power Shedding: Automate power management to optimize battery performance.
  • 200A Service Entrance: Reliable with a 22 kAIC main breaker for powerful service integration.
  • Real-Time Monitoring: Access and adjust settings remotely via the EG4 app or monitoring system website.
  • Configurable Breakers: Supports one generator up to 125A, 3 hybrid inverters up to 90A each, and 4 smart ports ranging from 60A to 125A.
 Placeholder Image

EG4 GridBOSS MID | 200A Service Entrance Applications

  • Residential energy storage & backup systems – Manage grid and battery power efficiently.
  • Off-grid and hybrid solar energy systems – Seamless integration with solar inverters.
  • Commercial and industrial energy management – High-power distribution for businesses and facilities.
  • Whole-home energy independence – Reduces reliance on the utility grid.
  • Emergency power switching – Automatically switches to battery or generator backup during grid failures.
 Placeholder Image

What's Included

Everything you need is included with your product.
  • EG4 GridBOSS MID | 200A Service Entrance
  • User Manual

Elevate Your ESS Today: Explore how the EG4 GridBOSS can streamline and enhance your energy management.

Important EG4 GridBoss Breaker Information

Each EG4 GridBoss unit includes:

  • 90A Breaker:
  • Compatible only with the EG4 FlexBOSS21
  • Smart Port Breakers:
  • Rated at 30A, 40A, 60A, and 80A.

Please Note:

  • You must purchase a 70A breaker separately for use with the EG4 18kPV Hybrid Inverter.
  • You must purchase a 50A Breaker separately for use with the EG4 12kPV Hybrid Inverter.
  • A 125A Breaker (sold separately) can be used with either the Smart Port or Gen Port.
  • 200A main breaker not included (must be purchased separately; model required: Eaton 200A CSR25K, not available through Signature Solar. See manual for more information).

Notice:

In order for the GridBOSS to meet it's UL Certifications copper wire must be used inside the unit. 

EG4 GridBOSS MID Specifications

GRID
Specification Details
NOMINAL AC VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT 200A
SERVICE ENTRANCE RATED 22kAIC with 200A Eaton breaker (model: (CSR2200N) CSR25K)

GENERATOR
Specification Details
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT 125A

NON-BACKUP
Specification Details
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT 200A

BACKUP
Specification Details
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT 200A

HYBRID
Specification Details
NUMBER OF PORTS 3
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT PER PORT 90A*
SUPPORTED INVERTERS EG4® 12kPV, 18kPV, & FlexBOSS21**

SMART PORTS
Specification Details
NUMBER OF PORTS 4
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT PER PORT 1: 125A | 2: 80A | 3: 60A | 4: 60A

GENERAL DATA
Specification Details
COMMUNICATION INTERFACE RS485/Wi-Fi/CAN
IDLE CONSUMPTION ~55W
TRANSFER TIME ~25 ms
INTERNAL BUS RATING 350A
INTERNAL FUSE RATING 315A
OPERATING ALTITUDE <6561 ft (<2000 m)
RELATIVE HUMIDITY 0 – 100%
OUTDOOR RATING NEMA 3R
OPERATING AMBIENT TEMPERATURE RANGE -40°F – 113°F (-40°C – 45°C)
PRODUCT DIMENSIONS (H×W×D) 31.5×19.7×7 in (800×500×178 mm)
UNIT WEIGHT 55 lbs. (25 kg)
STANDARD WARRANTY 10-year standard warranty***

EG4 GridBOSS Micro-Grid Interconnection Device (MID) Video

 

Frequently-Asked Questions

Is the EG4 GridBOSS MID compatible with all inverters?

Yes, it works with most hybrid and off-grid inverters, ensuring smooth integration into solar and battery systems.

Can this unit manage grid power and battery storage?

Yes, it automatically switches between grid, battery, and solar power for optimized energy use.

Does it provide surge protection?

Yes, built-in surge protection safeguards your energy system from voltage spikes and overloads.

Is installation complicated?

No, the unit comes pre-wired for easy installation, reducing setup time.

Can I expand my system later?

Yes! The EG4 GridBOSS MID is scalable, making it a future-proof solution for growing energy needs.

Manual

Shipping is FREE on all orders to customers within the 48 Contiguous States and the District of Columbia. We do not ship to Alaska, Hawaii, or any outlying islands and territories.

Processing time for orders is 1 business day

Shipping time for orders is 4-5 business days


Want to know more about our Returns Policy? Read more here.

Want to know more about our Shipping Policy? Read more here.

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Krato Power.

  • Family Owned & Operated. Ask for Alex (Owner) at any time!
  • 4-5 Day Free Shipping with free liftgate service to the 48 Contiguous States and the District of Columbia. No extra charges. Ever
  • NO Sales Tax except for IN
  • Secured Purchase. All Customer data is secured with SSL Encryption
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Exceptional Customer Service. Check out our About Us page.
  • Call or Text Us - We are really here! (In the USA). 1-888-855-7286
Based on 12 reviews
75%
(9)
17%
(2)
8%
(1)
0%
(0)
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(0)
11
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Installed this to use with a generator that was not compatible with my victron multiplus. This allowed me to keep my generator and use it for a backup supply to charge my EG4 batteries. I did not like the fact that when you adjust the current limit the charger resets to 0 and then ramps up instead of just going to the new setpoint from where it currently is.

Thank you for a great product.

B
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Need more in depth instructions

Moe in depth instructions would be great, i had an issue with input voltage too high, charger sensed it and would not charge batteries. Also had no fault lights or anything. There are lights you can see on the diodes on the side of the charger that will tell you it's not happy. I Figured it out the hard way. Other than some early growing pains it works great

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Jim B (Chicago, IL)
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Although these are not in stock yet, this will be the best fit for my home. I have a 2200 sq foot house and was worried I would not have enough to power the A/C during a power outage along with the well pump and sump pump. I called in to make sure I had the right fit and Alex was so helpful and kind. He went out of his way to make sure everything was the right fit. This generator will hookup to my homes natural gas line, which is also what I wanted.

In Stock and Ready To Ship

All of our items are in stock and ready to ship. All items ship within 1 business day.

Top Customer Service

We have excellent customer service. Questions? Call us at 1-888-855-7286

Hassle Free Returns

30 Day Easy Return Policy

Price BEAT Guarantee

Found a better price? We will BEAT it!

Schedule a Consultation

  • Still interested but want to talk at a diferent time?
  • Schedule a consultation here for later!
Book a Consultation
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Description

EG4 GridBOSS Micro-Grid Interconnection Device (MID)

The EG4 GridBOSS MID simplifies your Energy Storage System (ESS) by consolidating up to 10 components into a single, powerful unit. Designed to seamlessly connect utilities, generators, inverters, and loads, it offers centralized control, easy installation, and real-time remote monitoring.

EG4 GridBOSS MID | 200A Service Entrance Features

  • One-Point ESS Control: Connect and manage utility, inverters, generator, and loads from a single device.
  • Reduced Complexity: Replace breakers, transfer switches, and more with one compact solution.
  • Smart Load & Power Shedding: Automate power management to optimize battery performance.
  • 200A Service Entrance: Reliable with a 22 kAIC main breaker for powerful service integration.
  • Real-Time Monitoring: Access and adjust settings remotely via the EG4 app or monitoring system website.
  • Configurable Breakers: Supports one generator up to 125A, 3 hybrid inverters up to 90A each, and 4 smart ports ranging from 60A to 125A.
 Placeholder Image

EG4 GridBOSS MID | 200A Service Entrance Applications

  • Residential energy storage & backup systems – Manage grid and battery power efficiently.
  • Off-grid and hybrid solar energy systems – Seamless integration with solar inverters.
  • Commercial and industrial energy management – High-power distribution for businesses and facilities.
  • Whole-home energy independence – Reduces reliance on the utility grid.
  • Emergency power switching – Automatically switches to battery or generator backup during grid failures.
 Placeholder Image

What's Included

Everything you need is included with your product.
  • EG4 GridBOSS MID | 200A Service Entrance
  • User Manual

Elevate Your ESS Today: Explore how the EG4 GridBOSS can streamline and enhance your energy management.

Important EG4 GridBoss Breaker Information

Each EG4 GridBoss unit includes:

  • 90A Breaker:
  • Compatible only with the EG4 FlexBOSS21
  • Smart Port Breakers:
  • Rated at 30A, 40A, 60A, and 80A.

Please Note:

  • You must purchase a 70A breaker separately for use with the EG4 18kPV Hybrid Inverter.
  • You must purchase a 50A Breaker separately for use with the EG4 12kPV Hybrid Inverter.
  • A 125A Breaker (sold separately) can be used with either the Smart Port or Gen Port.
  • 200A main breaker not included (must be purchased separately; model required: Eaton 200A CSR25K, not available through Signature Solar. See manual for more information).

Notice:

In order for the GridBOSS to meet it's UL Certifications copper wire must be used inside the unit. 

EG4 GridBOSS MID Specifications

GRID
Specification Details
NOMINAL AC VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT 200A
SERVICE ENTRANCE RATED 22kAIC with 200A Eaton breaker (model: (CSR2200N) CSR25K)

GENERATOR
Specification Details
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT 125A

NON-BACKUP
Specification Details
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT 200A

BACKUP
Specification Details
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT 200A

HYBRID
Specification Details
NUMBER OF PORTS 3
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT PER PORT 90A*
SUPPORTED INVERTERS EG4® 12kPV, 18kPV, & FlexBOSS21**

SMART PORTS
Specification Details
NUMBER OF PORTS 4
NOMINAL VOLTAGE 120/240 VAC (L1/L2/N required)
FREQUENCY 60 Hz
MAXIMUM CURRENT PER PORT 1: 125A | 2: 80A | 3: 60A | 4: 60A

GENERAL DATA
Specification Details
COMMUNICATION INTERFACE RS485/Wi-Fi/CAN
IDLE CONSUMPTION ~55W
TRANSFER TIME ~25 ms
INTERNAL BUS RATING 350A
INTERNAL FUSE RATING 315A
OPERATING ALTITUDE <6561 ft (<2000 m)
RELATIVE HUMIDITY 0 – 100%
OUTDOOR RATING NEMA 3R
OPERATING AMBIENT TEMPERATURE RANGE -40°F – 113°F (-40°C – 45°C)
PRODUCT DIMENSIONS (H×W×D) 31.5×19.7×7 in (800×500×178 mm)
UNIT WEIGHT 55 lbs. (25 kg)
STANDARD WARRANTY 10-year standard warranty***

EG4 GridBOSS Micro-Grid Interconnection Device (MID) Video

 

Frequently-Asked Questions

Is the EG4 GridBOSS MID compatible with all inverters?

Yes, it works with most hybrid and off-grid inverters, ensuring smooth integration into solar and battery systems.

Can this unit manage grid power and battery storage?

Yes, it automatically switches between grid, battery, and solar power for optimized energy use.

Does it provide surge protection?

Yes, built-in surge protection safeguards your energy system from voltage spikes and overloads.

Is installation complicated?

No, the unit comes pre-wired for easy installation, reducing setup time.

Can I expand my system later?

Yes! The EG4 GridBOSS MID is scalable, making it a future-proof solution for growing energy needs.

Manual

Shipping is FREE on all orders to customers within the 48 Contiguous States and the District of Columbia. We do not ship to Alaska, Hawaii, or any outlying islands and territories.

Processing time for orders is 1 business day

Shipping time for orders is 4-5 business days


Want to know more about our Returns Policy? Read more here.

Want to know more about our Shipping Policy? Read more here.

We get it. You've got a lot of choice when it comes to online retailers. Here's why we think you should shop with us at Krato Power.

  • Family Owned & Operated. Ask for Alex (Owner) at any time!
  • 4-5 Day Free Shipping with free liftgate service to the 48 Contiguous States and the District of Columbia. No extra charges. Ever
  • NO Sales Tax except for IN
  • Secured Purchase. All Customer data is secured with SSL Encryption
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Exceptional Customer Service. Check out our About Us page.
  • Call or Text Us - We are really here! (In the USA). 1-888-855-7286