Hope no one was hurt.
The thing hate about breakers “if” trip ppl reset them right away… giving it a second or finite number of chances to cause problems. VS inspecting everything like would usually be done with fuse replacement. Breakers will fail if recycled over and over. Thermal protection helps solve some of that…breaker won’t reset until cooled off.
Ppl if you read it the OP says breaker tripped. Tripped again. Then smell from battery pack. Then read the breaker was fused melted inside when he tried it. Effective reading is critical. So no telling what really happened.
Everyone is blaming the daly bms which might not of been the problem. Lightening does weird stuff.

The temptation to just reset breakers is strong. Don’t do it without looking and smelling for smoke.
I have a fuse and breaker on my battery ….. the breaker is 120amp the fuse is 125amp. Breaker close to battery and fuse close to inverter. I am still waiting on my t class fuse to replace anl. I think the anl would work but it would depend on load when system fails.
I suspect mosfet in inverter…damaged during reported storm. ppl cycling tripped breakers over and over never leads to good things. Always inspect.
I’d remove all power - cables … remove cover and look around inside the inverter. Was inverter unit hooked to grid or generator or anything? Just battery? Sometimes you can remove from mount and shake stuff to hear pieces rattling around in the case. Good indication pieces went to something Like doing old light bulb rattle.
“1hp aircom” Assume air conditioner. Did you check out the air conditioner? Does it look good … any weird burned smells from it? Sometimes when inverters go take out appliances. Sometimes appliances feed back when hit by lightening.
Edit add: This might be better breaker. Those mini might not be so good… arc travel.
www.nsbjd.com
The thing hate about breakers “if” trip ppl reset them right away… giving it a second or finite number of chances to cause problems. VS inspecting everything like would usually be done with fuse replacement. Breakers will fail if recycled over and over. Thermal protection helps solve some of that…breaker won’t reset until cooled off.
Ppl if you read it the OP says breaker tripped. Tripped again. Then smell from battery pack. Then read the breaker was fused melted inside when he tried it. Effective reading is critical. So no telling what really happened.
Everyone is blaming the daly bms which might not of been the problem. Lightening does weird stuff.

The temptation to just reset breakers is strong. Don’t do it without looking and smelling for smoke.
I have a fuse and breaker on my battery ….. the breaker is 120amp the fuse is 125amp. Breaker close to battery and fuse close to inverter. I am still waiting on my t class fuse to replace anl. I think the anl would work but it would depend on load when system fails.
I suspect mosfet in inverter…damaged during reported storm. ppl cycling tripped breakers over and over never leads to good things. Always inspect.
I’d remove all power - cables … remove cover and look around inside the inverter. Was inverter unit hooked to grid or generator or anything? Just battery? Sometimes you can remove from mount and shake stuff to hear pieces rattling around in the case. Good indication pieces went to something Like doing old light bulb rattle.

“1hp aircom” Assume air conditioner. Did you check out the air conditioner? Does it look good … any weird burned smells from it? Sometimes when inverters go take out appliances. Sometimes appliances feed back when hit by lightening.
Edit add: This might be better breaker. Those mini might not be so good… arc travel.

DHM1B-2P Molded Case Circuit Breaker DC MCCB

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