EG4 | 50 Amp | BSB Series AC Breaker | EG4BREAKER50A | For EG4 12kPV Hybrid Inverter

This is a 50 Amp AC breaker built for the BSB series breaker box used with the EG4 12kPV hybrid inverter. It protects your AC input/output wiring from overcurrent conditions and gives you a manual disconnect point for service work.

The EG4 12kPV is a hybrid inverter used in whole-home backup and off-grid installations, and the AC side of that system needs a breaker matched to the wire gauge and load it is protecting. Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.

Undersized or oversized breakers on an inverter's AC input/output are a common cause of nuisance trips or, worse, undetected overcurrent conditions. This 50A breaker is specified by EG4 for the BSB series enclosure used with the 12kPV, so you are matching OEM ampacity ratings rather than guessing at a universal substitute.

Critical Fitment & Requirements

• Ampacity rating: 50 Amps.
• Designed for the BSB series breaker box used with the EG4 12kPV hybrid inverter.
• Does NOT include confirmed compatibility data for other EG4 inverter models (6kXP, 18kPV, etc.) — treat as inverter-specific until verified [NEEDS VERIFICATION].
• Not confirmed for use in breaker enclosures from other manufacturers.
• Wire gauge, terminal lug size, voltage rating, and pole configuration are not specified in available manufacturer data [NEEDS VERIFICATION].

Key Benefits

• Matched ampacity rating (50A) for the EG4 12kPV AC circuit as specified by the manufacturer.
• Fits directly into the EG4 BSB series breaker enclosure without modification.
• Manual disconnect function for service and maintenance work on the inverter's AC side.
• OEM-specified part reduces guesswork versus generic aftermarket breakers.

Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.

Compatibility & Fitment

• Fits: EG4 BSB series breaker box, as used with the EG4 12kPV hybrid inverter.
• Does NOT have confirmed fitment with other EG4 inverter models beyond the 12kPV [NEEDS VERIFICATION].
• Does NOT have confirmed fitment with third-party or non-EG4 breaker enclosures.
• Voltage rating and wire gauge compatibility are not listed in available manufacturer data — confirm against the Resources tab before install.

FAQ

What amperage is this breaker rated for?
This breaker is rated for 50 Amps, sized for use in the BSB series breaker box paired with the EG4 12kPV hybrid inverter.

Will this breaker fit any EG4 inverter?
This listing is specified for the EG4 12kPV hybrid inverter and BSB series breaker box. Fitment with other EG4 inverter models is not confirmed in manufacturer data provided [NEEDS VERIFICATION].

Is this breaker compatible with non-EG4 breaker enclosures?
No. This breaker is designed for the EG4 BSB series enclosure. Do not install it in a third-party breaker box without confirming physical and electrical compatibility with that manufacturer.

Warranty & Registration

Manufacturer warranty terms for this breaker are not included in the source data provided. Refer to the "Resources (System Manuals and Warranty)" Tab above on this page for the manufacturer's current warranty document and registration process. Ask us before you order if you need the warranty terms confirmed in writing — we always reply back.