Blue Sea Medium Duty Push Button Reset/Only Thermal Circuit Breakers

The Blue Sea Thermal Circuit Breaker provides medium-duty circuit protection for a wide range of loads. Featuring a trip-free design, this compact circuit breaker is suitable for main, branch as well as 24 hour high-density circuits.

This circuit breaker is ignition protected, making it ideal for installation in gasoline-powered boats. Plus, it comes with captive star lock washers that meet anti-rotation requirements.

• Weatherproof
• Ignition protected
• 24-hour circuit protection

Features of Blue Sea Medium Duty Push Button Reset-Only Thermal Circuit Breakers

• Push-to-reset operation
• Compact and trip-free design
• Trip-free design
• Thermal trip type
• Captive star lock washers
• Meets SAE J1428, SAE J553, UL1077, UL1500 regulatory specifications

Specifications

Manf. Part # 2139

• Amperage: 20A
• Maximum voltage
• 120V AC
• 32V DC
• Minimum operating temperature: -54° C
• Maximum operating temperature: 74° C
• Terminal stud #10-32 stainless steel
• Terminal stud torque 30 in-lb (3.39 Nm)
• Weight 0.16lb

Manf. Part # 2143

• Amperage: 60A
• Maximum voltage
• 120V AC
• 32V DC
• Minimum operating temperature: -54° C
• Maximum operating temperature: 74° C
• Terminal stud torque: 30 in-lb (3.39 Nm)
• Weight: 0.16lb

Manf. Part # 2142

• Amperage: 50A
• Maximum Voltage
• 120V AC
• 32V DC
• Minimum operating temperature: -54° C
• Maximum operating temperature: 74° C
• Terminal stud torque: 30 in-lb (3.39 Nm)
• Weight: 0.16lb

Manf. Part # 2138

• Amperage: 15A
• Maximum Voltage
• 120V AC
• 32V DC
• Minimum operating temperature: -54° C
• Maximum operating temperature: 74° C
• Terminal stud torque: 30 in-lb (3.39 Nm)
• Thread: #6 -32
• Weight: 0.16lb

Manf. Part # 2141

• Amperage: 40A
• Maximum Voltage
• 120V AC
• 32V DC
• Minimum Operating Temperature -54° C
• Maximum Operating Temperature 74° C
• Terminal Stud Torque 30 in-lb (3.39 Nm)
• Thread #6 -32
• Weight 0.16lb