Best in 7 days
![Blue Sea 7138 187 - Series Thermal Circuit Breaker - 40Amp [7138]](https://cdn.shopify.com/s/files/1/0629/5797/7856/files/20558XL.jpg?v=1683348609)
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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Oct 10 - Oct 15
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Description
Blue Sea 7138 187 - Series Thermal Circuit Breaker - 40Amp [7138]187 Series Thermal Circuit Breakers Surface Mount 40 Amp Circuit Breaker PN: 7138 Features: Combines switching and circuit protection into a single device All components meet SAE J1171 external ignition protection requirements 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
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
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Best in 7 days
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Best in 7 days
4.8 ★★★★★
Based on 342 reviews
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Product Reviews
★★★★★ 5
Battery isolater
Worked great just as planned
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2025
★★★★★ 5
Price and solid
Works great and been good and its been months now
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
★★★★★ 1
Broke after less than 2 months
Initially worked great but now the taking power from the coil doesn’t break the contact and I have to tap it with a screwdriver to get it to disengage
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2023
★★★★★ 5
Solid cables
Color: Red/Black, Size: 0AWG-25FT Each
Good set of cables
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
★★★★★ 5
love it
Color: Red/Black, Size: 0AWG-25FT Each
quick and love the product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
