Large Format DC Circuit Breakers
Panel Mount 187 Series DC Circuit Breakers
> Blue Sea 7039 Panel Mount 187-Series Circuit Breaker 50 Amps
Blue Sea Systems 7039 187-Series DC circuit breaker Panel 50 Amps
Blue Sea 7039 Panel Mount 187-Series Circuit Breaker 50 Amps
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Combines switching and circuit protection into a single device
Clear, single lever operation
"Trip Free" design cannot be held "ON" during fault current condition
Recessed mounting holes for clean appearance
Large Clearance around terminal studs accecpt heavy gauge wire lugs
Robust 5/16 M8 terminals provide high torque connections
Large lever with vertical/horizontal orientation provides indication of trip status
ignition protected to SAE J1171 - Safe for installation aboard gasoline powered boats
Assembled in Mexico by Cooper Bussmann -p/n 187050P-03-1
Detailed specification, drawings, and description.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to
Blue Sea website
The following is an excerpt from the
Cooper Bussmann Website
Typically used in DC power systems in marine applications (as a main or branch circuit breaker), truck and bus systems, RV systems, add-on protection for accessories, lift gates, etc. This unit is external ignition protected and weatherproof.
Rating: 25-200A, 48Vdc
Main Breaker Protection Interrupt Rating (5,
28Vdc and 1,
Operating Temperature Rating: –40°F (–40°C) to 185°F (85°C) Storage Temperature Rating: –40°F (–40°C) to 260°F (125°C)
Materials: Black UL-rated 94V0 thermoset plastic body. Cover and lever are UL-rated 94V0 thermoplastic
Standard marking includes amp/volt ratings.
Termination: 5/16-18 threaded studs Torque Rating: 75 in-lbs (8.5Ntm) max Mounting Torque Rating: Panel or surface-mount options; 50 in-lbs (5.6 Ntm) max Ingress Protection Rating: IP66 Features / Options: A manual reset circuit breaker with On-Off switch capability Compliances: ABYC E-11; CE; SAE J1171 (ignition protected) Consult factory for time characteristic curves.
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