Blue Sea Systems 187-Series Thermal Circuit Breaker

The Blue Sea Systems 187-Series Circuit Breakers provide medium-duty circuit protection for loads when switching and circuit protection are both required. This breaker is panel mounted and provides protection between 25 and 150A.

Features:

• Thermal circuit breaker
• Works with DC systems up to 48V
• Clear, single lever operation
• Combines switching and circuit protection into a single device
  • Do not use as a switch where high inrush currents are expected
• Applications: Windlasses
• 1500 - 5000A interrupt capacity depending on voltage
  • The fault current that a device, normally a fuse or circuit breaker, is capable of breaking without damage
• "Trip Free" design cannot be held "ON" during fault current condition
• Self-trimming, waterproof case eliminates need for mounting panels or trim bezels
• Large clearance around terminal studs accepts heavy-gauge wire lugs
• Robust 5/16"-18 terminals for high torque connections
• Ignition protected safe for installation aboard gasoline powered boats
• Waterproof protected against water from heavy seas

Specifications:

• Circuit Breaker Class: Type III
• Maximum Voltage: 48V DC
• Amperage: Select
• Interrupt Capacity:
  • 5000A @ 14V DC
  • 3000A @ 28V DC
  • 1500A @ 48V DC
• Mounting: Panel mount
• Circuit Breaker Type: Thermally responsive bi-metal blade
• Ignition protected to SAE J1171
• Waterproof: IP66
• Terminal Stud: 5/16-18
• Terminal Stud Torque: 75 in-lbs (8.47 Nm)
• Minimum Operating Temperature: -40° C
• Maximum Operating Temperature: 85° C
• Case Material: Thermoset polyester