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Description
Blue Sea 187-series 90 Amp Circuit Breaker Surface MountBlue Sea Systems 187 Series Circuit Breaker Surface Mount 90A Model: 7143 BSS 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
Blue Sea Systems 187-Series Circuit Breaker - Surface Mount 90A
Model: 7143-BSS- 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
- Meets SAE J1171 external ignition protection requirements
* Do not use as a switch where high inrush currents are expected.
Specifications| Amperage | 90A |
| Maximum Voltage | 48vDC |
| Mounting | Surface Mount |
| Circuit Breaker Type | Thermally responsive Bi-metal blade |
| Terminal Stud Torque | 75 in-lb (8.47 Nm) |
| Interrupt Capacity | 5000A @ 12V 3000A @ 24V 1500A @ 42V |
| 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 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 610 reviews
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Product Reviews
★★★★★ 5
Affordable, Clean and does the job.
Size: 36 sqft, Size: 36 sqft
I consumed about 90% of this box doing all doors and the tailgate on a 2000 tahoe. I applied it very liberally inside every door (exteror) panel. We then added an almost equal amount of deadening/absorbing/decoupling foam to the other side of the door (panel side). If you know how many rattles a circa 2000 tahoe GMT800 can have by now, you can appreciate why I added this as a "must" if i were to put some money back into this vehicle. Best sub $150 spent on this mini resto so far, right next to tint.
Good quality. Not to thick or thin. Good sized sheets. Seamed to deaden as good as another slightly thicker material i recently used in my F250. My box was delivered with no issues of melting or anything funky. Clean, no major smell before or after and easy to work with. Maybe buy a roller set and wear gloves. Save your hands if your doing inside of panels. Good buy. Will buy more for future projects.
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Reviewed in the United States on February 17, 2026
★★★★★ 5
Great product
Size: 36 sqft
Easy to apply, made a big difference in sound deadening on side by side. Would definitely purchase again.
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Reviewed in the United States on June 1, 2026
★★★★★ 5
AS GOOD AS ANY OTHER, WORKS GREAT
Size: 36 sqft, Size: 36 sqft
Used this in my 17 RAM 1500. This stuff works great, just as good as S...ss brand that is also sold on here. Same thickness and same tackiness. And this stuff sticks like crazy, once its laid down and rolled onto the surface, it is hard to remove, so I am pretty sure it will stay where I installed it. It is great value, one box was enough to do the whole roof of the truck with a little left over for small spots. I think it took a total of 2.5 boxes to do my whole crew cab, roof, floor and back wall and most of the firewall, and I also added a layer of their .25" foam. I do notice a difference in less outside noise, from wind and road. I will be doing my wife car soon, and this is the product I will be using again, I recommend this.
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Reviewed in the United States on January 14, 2026
★★★★★ 5
Dyna... who?
Size: 36 sqft
This stuff works great. Fraction of the cost to Dyna.. and just as good. Very sticky. Used in doors, floors and ceiling. Great product and performs flawlessly. I would highly recommend this.
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Reviewed in the United States on March 13, 2026
★★★★★ 4
Awesome, inexpensive alternative to name-brands!
Size: 36 sqft
Awesome. Stuck well with alcohol prep and time to let liquid flash-off. Very consistent, piece to piece. Backing peeled easily when desired. Compared to Amazon Basics, the butyl seemed a little thicker (infinitesimally) and stickier, foil was less thick than Amazon Basics. Very good value. Started with my nice car, but after completing project, sound dampened all cars in the immediate family it made such a noticeable difference in sound level and quality of music from soeakers. Recommended!
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Reviewed in the United States on October 21, 2025