Blue Sea Systems 187-Series Circuit Breaker - Panel Mount 90A
SKU BLUE-7043
- Amperage
- 90A
- Maximum Voltage
- 48V DC
- Mounting
- Panel Mount
- Circuit Breaker Type
- Thermally responsive Bi-metal blade
- Terminal Stud Torque
- 75 in-lb (8.47 Nm)
- Interrupt Capacity
- 5000A @ 14VDC; 3000A @ 28VDC; 1500A @ 48VDC
- Minimum Operating Temperature
- -40° C
- Maximum Operating Temperature
- 85° C
Stocked items typically ship the next business day from our US warehouse. 30-day returns on unused stocked items. Exclusions apply. Return policy · Shipping policy
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About this product
187-Series Circuit Breaker - Panel Mount 90A. Combines switching and circuit protection into a single device*. Clear, single lever operation.
Key features
- Combines switching and circuit protection into a single device*
- Clear, single lever operation
- "Trip Free" design cannot be held "ON" during fault current condition
- Waterproof
- Recessed mounting holes for clean appearance
- Large Clearance around terminal studs accept 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 - Safe for installation aboard gasoline powered boats
For installation planning, check the manufacturer's ratings: amperage: 90A; maximum voltage: 48V DC; mounting: Panel Mount; mounting hole: Accept #10 (M5) Screw.
Manufacturer part 7043. Confirm the circuit rating, mounting arrangement, and required accessories against the manufacturer specifications before selecting this part.
Manufacturer specifications
- Amperage
- 90A
- Maximum Voltage
- 48V DC
- Mounting
- Panel Mount
- Circuit Breaker Type
- Thermally responsive Bi-metal blade
- Terminal Stud Torque
- 75 in-lb (8.47 Nm)
- Interrupt Capacity
- 5000A @ 14VDC; 3000A @ 28VDC; 1500A @ 48VDC
- Minimum Operating Temperature
- -40° C
- Maximum Operating Temperature
- 85° C
- Case Material
- Thermoset Polyester
- Circuit Breaker Class
- Type III - switchable/manual reset - trip free
- Mounting Hole
- Accept #10 (M5) Screw
- Terminal Stud Size
- 5/16" - 18
- Weight
- 0.50lb (0.23 kg)
Product details
- Series
- 187-Series
- Voltage
- 48V DC
- Function
- 187-Series
- Device Type
- 187-Series
- Manufacturer
- Blue Sea Systems
- Product Type
- 187-Series
- Mounting Style
- Panel Mount
Shipping & returns
- Stocked items typically ship the next business day from our US warehouse.
- 30-day returns on unused stocked items. Exclusions apply. See policy
- Custom and quoted items are non-returnable once production begins.
Warranty
Backed by the original manufacturer’s warranty plus our workmanship guarantee on assembled harnesses. Contact us with your invoice and we’ll coordinate any covered repair or replacement.
Read the full warranty termsTechnical support
Need help choosing the right part?
Our marine electrical team can review your setup and recommend compatible products. Send a photo, a sketch, or your circuit list and we'll come back with a parts list that fits the boat.
Certifications & training
- ABYC-aware build practices
- OEM-grade marine wire & terminals
Additional capabilities are based on hands-on experience building marine wiring systems rather than third-party certification.
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Have you used this product in a project? Send us photos of your install for consideration in our project gallery.
Why buy from Common Ground Marine
- 20+ years building marine wiring harnesses, panels, and shore-power systems.
- Engineers — not a phone tree — review every custom build before parts are cut.
- OEM-grade components: tinned copper, sealed connectors, marine-rated jackets.