Siemens SIRIUS 3RV2031-4UA10 Motor Protection Circuit Breaker 32-40A 600VAC
You will notice the black color right away, which pairs well with neutral wall plates.
C10N3MA050 New Schneider Molded Case Circuit Breaker NSX100N 50kA MA 50A 3P3D F
It also has resistance properties that make it corrosion and fire resistant.