Bi directional breaker

Is this what you are looking for?

https://www.midnitesolar.com/productPhoto.php?product_ID=197&productCat_ID=16&sortOrder=13

• NON POLARIZED
• Listed for 120vac and 150vdc
• Width 0.75 inch
• 1/4 inch studs
• Breaker Torque Value: 30 In-Lbs (3.4NM)
• Environmental Rating - Type 1 (Indoor)
• Listed for US & Canada when used in appropriate breaker box
• Includes two 6-32 x 0.195” Pan Head Phillips mounting screws

From our host NAWS/NAZ:

https://www.solar-electric.com/midnite-solar-150-volts-60-amps-dc-panel-mount-circuit-breaker.html

In the "olden days" (5-10+ years ago????), DC circuit breakers could be rated for polarized operation (basically, +/- current flow in the "correct" direction, everything works fine. Current flow in the "backwards" direction, and the ARC from opening contacts could be pulled into the workings of the breaker, and not the flame chute, setting the breaker on fire).

At least one issue with polarity is there is a magnet that "blows" the Arc into the flame chute, and with reverse current flow, the magnet blows the Arc into the guts of the breaker, and setting the breaker on fire. Note that even manual switching of loads below rated current can "damage" polarized circuit breakers when exposed to reverse current flow.

As I understand, new UL/NRTL requirements prohibit polarized breakers to avoid this issue.

-Bill