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EG4 BSB 125A AC Circuit Breaker | Compatible with FlexBOSS21 Hybrid Inverter

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SKU: CNT147
$72.00

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Easy 30-Day Returns

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EG4 BSB 125A AC Circuit Breaker | Reliable Protection for High-Capacity AC Power Systems

Large solar and energy storage systems demand serious protection. The EG4 BSB 125A AC Circuit Breaker is built to handle high electrical loads while protecting your system from the risks that come with them, including overheating, equipment damage, and dangerous fault conditions.

When an overload or short circuit occurs, this breaker responds instantly by disconnecting power, keeping your system stable and your equipment safe. Designed for seamless integration with EG4 BSB system setups, it installs cleanly and performs reliably in demanding environments where lesser components fall short.

Its heavy-duty construction is made for long-term use in high-capacity applications, giving you confidence that your system is protected day in and day out. Whether you are building or upgrading a solar or energy storage setup, this breaker delivers the level of protection your investment requires.


EG4 BSB 125A AC Circuit Breaker Features

Built for High-Power Solar and Energy Storage Systems

Engineered to handle demanding electrical loads, this 125A AC-rated breaker is purpose-built for modern solar and energy storage applications. It provides the capacity needed to support larger systems without compromising safety, making it an essential component for high-performance installations.

Fast, Reliable Fault Protection

When something goes wrong, response time matters. This breaker quickly detects overloads and short circuits, automatically disconnecting power to prevent damage to your equipment and reduce the risk of dangerous electrical events. You get dependable protection exactly when you need it.

Seamless Integration with EG4 BSB Systems

Designed specifically for compatibility with EG4 BSB system configurations, this breaker installs cleanly and works in harmony with your existing setup. There is no guesswork or modification required, helping you streamline installation and ensure proper system performance.

Rugged Construction for Demanding Environments

Built to perform in tough conditions, this breaker features a durable, heavy-duty design that stands up to long-term use. Whether installed in residential or commercial environments, it delivers consistent, reliable protection over time, even under continuous load and stress.



EG4 BSB 125A AC Circuit Breaker Warranty

Backed by a 10-year manufacturer warranty from EG4, this circuit breaker is built for long-term performance and peace of mind. The warranty covers defects in materials and workmanship under normal use, ensuring dependable protection for years to come.


What's Included

  • 1 x EG4 BSB 90A AC Circuit Breaker
  • Mounting Hardware
  • Installation and Safety Instruction Sheet    

Common Customer Questions

Get answers to the most frequently-asked questions customers ask before placing an order.

Is Outbound Power an Authorized Dealer?

Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.

How long will it take for my order to arrive?

Shipping times vary depending on your location and the product or products ordered.

Order Processing Time
Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.

After order processing is complete, you will receive tracking information to monitor your order while it is in transit.

Order Shipping Time
Following processing, it may take between 3 and 8 days to arrive, depending on your location.

Please refer to the product page for your item and reference the estimated delivery time frame for more details.

Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.

What are your shipping rates? Do you offer free shipping?

Everything on our store ships for free. Really!

What is Outbound Power's return policy?

Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.

Are Outbound Power products used/old/refurbished?

Everything sold on our website is brand-new.

Do you price match?

No — we price BEAT! Please refer to our Price Beat Promise for full details.