The MARINCO part 7136-BSS is a Breaker Thermal 187 SrfcMnt with a 30A rating. This surface-mounted breaker is designed to safeguard your electrical circuits from overloads and short circuits. With its thermal 187 technology, it efficiently detects excessive currents and automatically shuts off to prevent damage to your electrical system. The compact design allows for easy installation and ensures space-saving in your electrical setup. Trust MARINCO's expertise in electrical protection and choose this reliable breaker for your surface-mounted applications.