285-Series Circuit Breaker Replaces Popular 185-Series Breaker at a Lower Price

February, 17 2011

The 285-Series Thermal Circuit Breaker is a direct drop-in replacement for the established 185-Series Thermal Circuit Breaker. The 285-Series breaker is available in panel mount and surface mount configuration, and can also be mounted in the 360 Panel System module or with one of two optional bezels. Blue Sea Systems offers the 285-Series Thermal Circuit Breaker as a drop-in replacement at lower cost. For a comparison of the 185-Series and 285-Series breakers, see the chart below.

Amperage Interrupt Capacity3000A @ 48V DC*3000A @ 48V* DC
Voltage Max Operating48V DC48V DC
Amperage Trip Reference25–150A25–200A
Temp Min Operating−25°C−40°C
Temp Max Operating82°C85°C
TypeThermally responsive
bi-metal blade
Thermally responsive
bi-metal blade
ClassType III - Switchable
Manual Reset - Trip Free
Type III - Switchable
Manual Reset - Trip Free
Reset Lever ColorBlackYellow
Mounting HoleAccepts 1/4" ScrewAccepts 1/4" Screw
Terminal Stud1/4"-28M6
Ring Terminal Required1/4" or M6M6 or 1/4"
Ignition ProtectionSAE J1171SAE J1171
Ingress ProtectionIP67IP67
Locking HardwareSplit-ring lockwasherSplit-ring lockwasher

* AIC rating achieved using SAE 1625
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