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Stress-free Blue Sea 7138 187 - Series Thermal Circuit Breaker - 40amp Don't Wait [IMN0wAEJ]

$28.99 $92.99 -69%

187 - Series Thermal Circuit Breakers - Surface Mount40 Amp Circuit BreakerPN:  7138Features: Combines switching and circuit protection into a single deviceAll components meet SAE J1171 external ignition protection requirementsClear, single lever ope

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Stress-free Blue Sea 7138 187 - Series Thermal Circuit Breaker - 40amp Don't Wait [IMN0wAEJ]

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°

WarningWARNING: 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.

What Our Customers Say

January 23, 2026

Absolutely no complaints!

This product is a great example of innovative and user-friendly design.

- Giovanna S..

January 23, 2026

Absolutely no complaints!

I'm very satisfied with its performance and durability so far.

- Madeline P..

January 23, 2026

Absolutely no complaints!

This product is a great example of a well-executed concept.

- Jedidiah C..

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