SKU: 75723549791

Blue Sea 7138 187 - Series Thermal Circuit Breaker - 40Amp

Sale price$87.82 Regular price$97.58
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  • CAN

Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

Blue Sea 7138 187 - Series Thermal Circuit Breaker - 40Amp187 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

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
  • 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.


Manufacturer Part Numbers: 7138
GRP:WRO
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 75723549791

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4.0 ★★★★★
Based on 24 reviews
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J
Verified Purchase
JJ
Pawtucket, US
★★★★★ 4
Overall good chair for a good price
Number of Items: 1
Comfortable chair, but there's a very slight lean. I haven't yet managed to track down what's causing it, but as I slowly spin around, I find myself tilting slightly forward, then left, then back, then right... I've removed the casters and then removed/reinstalled the "ring" of legs, so the next place to check is the connection between the post and seat.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
P
Verified Purchase
Patrick Gunn
Dallas, US
★★★★★ 5
well made for price
Number of Items: 1
well made and comfortable chair
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
C
Verified Purchase
CandidReviewer
Lake Worth, US
★★★★★ 5
The best office chair!!!
Number of Items: 1
The chair is great quality, sturdy, and was easy to put together. Looks just like the photos and video. It is SUPER comfortable - the most comfortable chair ever! If you’re looking to purchase an office chair/ desk chair - this is the one! The price was reasonable and I would 100% recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
A
Verified Purchase
Adam Bogatko
Charlottesville, US
★★★★★ 5
Great chair, only one issue.
Number of Items: 1
As someone who is exactly 6ft tall, this chair is just about perfect for my height and body type. High quality materials, adjustable lumbar support, very ergonomic. Visually, it works well with my desk setup. It has already helped me improve my posture ten-fold. My only complaint might be that the tension on the recline joint is too much. Twisting it to the loosest setting doesn’t feel loose enough, you’ll need to put your feet up on something to recline comfortably and stay in that position. Other than that, great chair. I don’t see myself returning this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
L
Verified Purchase
Lorna O'Leary
Alexandria, US
★★★★★ 5
Chair
Number of Items: 1
Very comfortable and easy to assemble
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026

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