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Blue Sea 7139 50A 187 Series Surface Mount Thermal Circuit Breaker

$76.95

Nomadic Supply Company donates 10% of profits to Sierra Club and 1% of gross sales to the Stripe Climate Change initiative.

The Blue Sea 7139 50A 187 Series Surface Mount Thermal Circuit Breaker from Nomadic Supply Company provides heavy-duty circuit protection for 25 to 200 Amp loads when switching and circuit protection are both required.

306 in stock

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GTIN: 632085071394 SKU: 7139-BSS Category:

The Blue Sea 7139 50A 187 Series Surface Mount Thermal Circuit Breaker from Nomadic Supply Company provides heavy-duty circuit protection for 25 to 200 Amp loads when switching and circuit protection are both required.

Switching and circuit protection in a single device. Single lever operation. Waterproof, with recessed mounting holes for a clean appearance. Self-trimming case eliminates the need for mounting panels or trim bezels and permits easy installation with a standard sized hole saw. Large clearance around 5/16″ terminal studs accept heavy gauge wire lugs and allows high-torque connections. Ignition-protected safe for installation aboard gasoline-powered boats. Interrupt rating: 5000A at 12V DC.

Blue Sea 7139 50A 187 Series Surface Mount Thermal Circuit Breaker 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
  • * Do not use as a switch where high inrush currents are expected.

Blue Sea 7139 50A 187 Series Surface Mount Thermal Circuit Breaker Specifications:

Amperage 50A
Maximum Voltage 48V DC
Mounting Surface Mount
Circuit Breaker Type Thermally responsive Bi-metal blade
Terminal Stud Torque 75 in-lb (8.47 Nm)
Interrupt Capacity 5000A @ 14VDC
3000A @ 28VDC
1500A @ 48VDC
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
Weight 0.58lb (0.26 kg)
Weight 0.58lb (0.26 kg)

Brand

Blue Sea Systems

Blue Sea Systems designs and manufactures products for marine, emergency vehicle and renewable energy electrical systems in both DC and AC applications. The products include high amperage switches, digital meters, solenoids, circuit protection systems, battery chargers, power distribution systems and other high quality, environmentally robust electrical circuit devices. The Company's products are sold to distributors, retailers and manufacturers in over 40 countries.  
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WarningWARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

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