SKU: 58540344871

Blue Sea 187-series 40 Amp Circuit Breaker Surface Mount

Sale price$80.71 Regular price$89.68
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

Blue Sea 187-series 40 Amp Circuit Breaker Surface MountBlue Sea Systems 187 Series Circuit Breaker Surface Mount 40A Model: 7138 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 40A

Model: 7138-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 40A
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:
  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: 58540344871

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Reviewed in the United States on January 11, 2026
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Alston 34 Paerdegat 14 st
Alexandria, US
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I just need the size 12
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Gm.i made a mistake the first time when I order the size 13. I return it because it was to big .so I reorder a size 12 now am looking at my order they still sending me the same size 13 i will have to return it again because it is to big sorry I dont know what going
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Rayan McLeod
Phoenix, US
★★★★★ 3
Worth the price
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A little tie on the valley,
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Thomas Micheal Bennett
San Leandro, US
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daira flores
Houston, US
★★★★★ 5
Le quedaron bien a mi hijos
Size: 8.5, Color: Black
El zapatos ese buenísimo
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Reviewed in the United States on December 3, 2025

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