![Blue Sea 7139 187 - Series Thermal Circuit Breaker - 50Amp [7139]](https://cdn.shopify.com/s/files/1/0855/3916/0358/files/20559XL.jpg?v=1706645978)
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Description
Blue Sea 7139 187 - Series Thermal Circuit Breaker - 50Amp [7139]187 Series Thermal Circuit Breakers Surface Mount 50 Amp Circuit Breaker PN: 7139 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
187 - Series Thermal Circuit Breakers - Surface Mount
50 Amp Circuit Breaker
PN: 7139
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
- Robust 5/16 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
| Specifications | |
| Circuit Breaker Class: | Type III - Switchable / Manual Reset - Trip Free |
| Type: | Thermally Responsive Bi-Metal Blade |
| Case Material: | Thermoset Polyester |
| Voltage Rating: | 48 Volts DC Maximum |
| Interrupt Rating: | 5,000 Amperes @12 Volts DC |
| 3,000 Amperes @24 Volts DC | |
| 1,500 Amperes @42 Volts DC | |
| Operating Temperature Range: | -25C° to +82C° |
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Specifications:
- Amperage: 50a
- Box Dimensions: 2"H x 5"W x 8"L WT: 0.6 lbs
- UPC: 632085171391
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 20 reviews
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Product Reviews
★★★★★ 5
Fun, cute bag! Perfect for Cars lovers ♥️
Color: Disney: Cars Lightning Speed, Style: Kids Large, Color: Disney: Cars Lightning Speed, Style: Kids Large
From the reviews I thought it was going to be small, but surprisingly its the perfect size for my son. Amazing quality, great size, comfortable and bright colors! Couldn't resist and got the lunch box to match as well 😊
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Great size for 5 year olds!
Color: Disney: Frozen Elsa's Snowflake, Style: Kids Medium
This is a darling backpack. My daughter has been using it for a few months already and it’s pretty sturdy. The size is excellent for 5 year olds. It took me a while to find a backpack small enough that would fit her lunch box.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 5
Perfect for my three year old!
Color: Bluey: Sky, Style: Kids Medium, Color: Bluey: Sky, Style: Kids Medium
It was officially time to transition from a diaper bag to a big girl backpack!
And both my daughter and I love this backpack! It is perfect size for her and holds everything she needs for school. It’s perfect for everyday use. I think the price is fair for the quality and sturdiness! She is gonna be able to use this until kindergarten! I definitely recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 5
Good quality toddler backpack
Color: Disney: Pixar Mashup on Blue, Style: Kids Medium, Color: Disney: Pixar Mashup on Blue, Style: Kids Medium
Good size toddler backpack! My son is obsessed with every character on the backpack. We got matching water bottle and lunch box too so everything is coordinated for daycare. Been using for 8 months now with no issues. Very durable. All zippers intact and work with ease.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
★★★★★ 5
Couldn't be better!
Size: Large
Yes, these are "old lady" boxers, but you can't beat the comfort and the fact that they are all cotton with covered elastic.
I usually wear a 7 in Hanes, etc. Large (or ex lg if you want them looser) fit me fine. They looked small out of the package, and even smaller after washing, but still fit. Size up if you are unsure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2025
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