Blue Sea Systems 7189 285 Series 150A DC Circuit Breaker Surface Mount

The Blue Sea Systems 7189 is a 285 Series thermal circuit breaker designed to provide medium-duty circuit protection for demanding DC electrical systems. Rated for 150 amperes, this surface-mount breaker combines circuit protection and manual switching functionality in a compact, reliable package suitable for marine, RV, and automotive applications.

Key Features:

• 150 amp rating with 48V DC maximum voltage capacity
• Trip-free design prevents the breaker from being held closed after a fault condition
• Visible reset lever clearly indicates open/tripped condition for easy status monitoring
• Type III manual reset with switchable on/off operation
• Won't reset under short circuit conditions, ensuring safe operation
• 3,000 amp interrupt rating for robust fault protection
• Rectangular surface mount configuration with 1/4"-28 threaded stud terminals
• Drop-in replacement for 185 Series circuit breakers
• Compact dimensions: 2.9"H x 1.9"W x 1.78"D

The 285 Series breakers are ideal for applications requiring both overcurrent protection and convenient manual switching control. The thermal trip mechanism provides reliable protection against sustained overloads, while the high interrupt rating handles short circuit faults safely. The surface mount design with stud terminals simplifies installation and provides secure electrical connections.