Blue Sea 7086 80 Amp Circuit Breaker Panel Mount 285 Series
Blue Sea 7086 80 Amp Circuit Breaker Panel Mount 285 Series — Product description
The Blue Sea Systems 7086 is an 80-amp panel-mount circuit breaker from the 285-Series, built to protect high-draw DC circuits on your boat. It combines a switch and a thermal breaker in one unit, trips free so it can't be held closed on a fault, and it's ignition protected for gas-powered installs.
The Blue Sea Systems 7086 is an 80-amp panel-mount circuit breaker from the 285-Series, and it's one of those parts that quietly earns its keep on a boat. It protects a single high-draw DC circuit, a windlass, a bow thruster, an inverter feed, or a big electronics bus, and it does the job of a switch at the same time. Flip it on, it powers the circuit. Get a fault or a sustained overload and it trips, cutting the load. There's no separate switch and fuse to wire up. One unit on the panel handles both.
What makes the 285-Series worth reaching for is the trip-free design. Once the breaker trips, you can't force it back closed while the fault is still there. Hold the lever all you want, it won't stay. That matters when you're troubleshooting a dead windlass at 6 a.m. and someone's tempted to just jam the breaker shut to get the anchor up. It protects the wiring and it protects you. The reset lever is visible too, so a quick glance at the panel tells you whether a circuit is live or has popped.
The 7086 is rated to 48V DC max, so it covers 12V, 24V, and 32V systems without a second thought. Inside is a thermally responsive bi-metal blade, the proven mechanism that reacts to heat from current rather than a magnetic spike, which is exactly what you want on the slow, heavy loads a boat throws at a breaker. Interrupt capacity is 3000A at 48V, so a dead short won't weld the contacts or turn the breaker into a problem of its own.
Wiring it is straightforward. The terminals are M6 studs that accept a 1/4-inch ring terminal, and Blue Sea calls for 60 in-lb (6.78 Nm) of torque on the stud nuts. Get a torque wrench on them. Loose lugs on a planing hull will back off from vibration and heat up, and that's the number one reason these breakers get blamed for a problem that's really an install issue. Snug, clean, torqued terminals and this thing runs cool for years.
It's ignition protected and meets SAE J1171, the spec that says it's safe to mount in a space that could see gasoline vapors, like an engine bay or a compartment on a gas-powered boat. That's not a box every breaker ticks, so if your panel lives anywhere near the engine, this is the right kind of part. It's weather resistant as well, and rated from -40 to 85 degrees C, so it holds up in a hot engine room or a cold winter layup without drama.
One honest note on placement. It's a thermal breaker, so ambient heat counts against it. Mount an 80A breaker in a sealed, blazing-hot engine compartment and it may nuisance-trip a little below its rating on a long pull. Give it some airflow, or step up a frame size if the circuit genuinely runs near 80A continuous. And it's not built to be switched under heavy inrush, so don't use it as the on/off for something that slams a huge surge every time it starts. As a protective switch for a steady load, it's exactly right.
If you're replacing an older 185-Series breaker, the 7086 is a drop-in. Same footprint, same mounting, so you're not redrilling the panel. It pairs naturally with the rest of a Blue Sea DC system too, a battery switch feeding it and a bus bar downstream, and you've got clean, serviceable circuit protection that any tech can read at a glance. For anglers, cruisers, and liveaboards who want their electrical panel to be honest about what's happening, the 285-Series 7086 is a smart, no-nonsense pick.
Key Features
- 80A rating handles high-draw DC circuits like windlasses, bow thrusters, and inverter feeds
- 48V DC maximum voltage covers 12V, 24V, and 32V marine systems
- Trip-free design cannot be held closed while a fault is present, protecting wiring and crew
- Visible reset lever shows open or tripped condition at a glance
- Ignition protected and meets SAE J1171 for safe installation on gas-powered boats
- Combines switching and circuit-breaker function in one panel-mount unit
- 3000A interrupt capacity at 48V handles a dead short without welding contacts
- Thermally responsive bi-metal blade reacts to sustained current, not magnetic spikes
- M6 terminal studs accept 1/4-inch ring terminals, torqued to 60 in-lb (6.78 Nm)
- Rated -40 to 85 degrees C and weather resistant for engine rooms and cold layups
- Drop-in replacement for 185-Series circuit breakers, no panel redrilling
Why Buy from NVN Marine
- Authorized Blue Sea Systems reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Blue Sea 7086 80 Amp Circuit Breaker Panel Mount 285 Series |
|---|---|
| Brand | Blue Sea Systems |
| Manufacturer Part Number | 7086 |
| UPC | 632085070861 |
| Series | 285-Series |
| Amperage | 80A |
| Maximum Voltage | 48V DC |
| Mounting | Panel Mount |
| Circuit Breaker Type | Thermally responsive Bi-metal blade |
| Circuit Breaker Class | Type III - switchable / manual reset - trip free |
| Interrupt Capacity | 3000A @ 48V |
| Terminal Stud | M6 (accepts 1/4 in Ring Terminal) |
| Terminal Stud Torque | 60 in-lb (6.78 Nm) |
| Minimum Operating Temperature | -40 degrees C |
| Maximum Operating Temperature | 85 degrees C |
| Ignition Protection | Meets SAE J1171 |
| Weather Resistance | Weather Resistant |
Frequently asked questions
What size terminals and torque does the Blue Sea 7086 use?
The 7086 has M6 terminal studs that accept a 1/4-inch ring terminal. Blue Sea calls for 60 in-lb (6.78 Nm) of torque on the stud nuts. Use a torque wrench and check them after the first season, since loose lugs on a boat back off from vibration and heat up.
Will this breaker work on a 12V or 24V system?
Yes. The 7086 is rated up to 48V DC maximum, so it's fine on 12V, 24V, and 32V systems. The 80A rating is the current limit, and the voltage rating is the ceiling.
What does trip-free mean?
Trip-free means once the breaker trips on a fault or overload, you can't hold the lever closed to keep the circuit energized. It won't stay closed until the fault clears. That protects the wiring and keeps someone from forcing power through a bad circuit.
Is the 7086 ignition protected?
Yes. It's ignition protected and meets SAE J1171, so it's safe to install in a space that could contain gasoline vapors, such as an engine compartment on a gas-powered boat. If your panel lives near the engine, that rating matters.
What is an 80A breaker like this good for?
An 80A breaker suits a single high-draw DC circuit, a windlass, a bow thruster, a mid-size inverter feed, or a heavy electronics bus. Match the breaker to the wire size and the continuous load of the circuit it protects.
Can the 7086 replace a 185-Series breaker?
Yes. The 285-Series 7086 is a drop-in replacement for the older 185-Series breakers. Same footprint and mounting, so you won't need to redrill the panel.
How do I tell if the breaker has tripped?
The reset lever is visible on the front of the breaker and shows the open condition. A quick glance at the panel tells you whether the circuit is live or has popped, which makes troubleshooting a lot faster.
Can I use it as an on/off switch too?
It combines switching and breaker function in one unit, so yes, it works as a manual switch for a steady load. Just don't use it to switch a circuit with high inrush current every time it starts, since it's not built for repeated heavy surge switching.
What's the operating temperature range?
The 7086 is rated from -40 to 85 degrees C. Keep in mind it's a thermal breaker, so a lot of ambient heat in a sealed engine compartment can cause it to trip a bit below rating on a long, heavy pull. Give it some airflow if the circuit runs near 80A continuous.
