Sea-Dog SD-87 60A 48V DC Circuit Breaker | 830524
Sea-Dog SD-87 60A 48V DC Circuit Breaker | 830524 — Product description
The Sea-Dog SD-87 is a 60-amp resettable circuit breaker built for 48-volt DC systems on the water. It surface mounts to a bulkhead, trips on an overload before your wiring pays for it, and resets by hand. IP66 sealed against spray and washdown.
The Sea-Dog SD-87 is a 60-amp resettable circuit breaker built for 48-volt DC systems on the water. If you're running a 48-volt trolling motor bank, a lithium house system, or any high-current 48-volt feed, this is the breaker that sits between your battery and your load and does the worrying for you. Pull too much current, and it trips before your wiring pays the price.
It's a manual reset, and that's a good thing. When it pops, it stays popped. No auto-recycling back into a fault you haven't found yet. You track down what caused the overload, fix it, then push the button back in and you're back in business. No spare fuses rattling around in a drawer, no fumbling for the right amperage at the worst possible time.
The body is black plastic and surface mounts flat to a bulkhead or an electrical panel. Wiring lands on 5/16 inch-18 stud terminals, so standard ring lugs bolt right on. It carries an IP66 rating, which means it's dust-tight and shrugs off heavy spray and washdown. Mount it in a console, a battery compartment, or an open rigging area without babysitting it.
Sea-Dog built this one to the specs that matter for marine wiring. It meets SAE J553, ABYC E-11, UL1077, and SAE J1171. That last one is the ignition-protection standard, so it's safe to install near a gasoline engine or in a compartment where fuel vapors can gather. ABYC E-11 is the DC wiring standard your surveyor and your insurer both care about.
One thing to get right: size the breaker to your wire and your load, not the other way around. A 60-amp breaker protects wiring rated for 60 amps or more. If you're not sure what gauge you're running or what your motor pulls, give us a call before you wire it in. We'd rather spend five minutes on the phone than see you back here with a melted harness.
Key Features
- 60-amp rating protects 48-volt DC circuits from overload and short-circuit faults
- Manual push-to-reset, so it stays tripped until you clear the fault and reset it by hand
- IP66 sealed housing, dust-tight and stands up to heavy spray and washdown
- Surface-mount black plastic body bolts flat to a bulkhead or electrical panel
- 5/16 inch-18 stud terminals accept standard ring lugs
- Meets SAE J553, ABYC E-11, UL1077, and SAE J1171 standards
- SAE J1171 ignition-protected for safe use near gasoline engines and fuel vapors
Why Buy from NVN Marine
- Authorized Sea-Dog 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 | Sea-Dog SD-87 60A Resettable Circuit Breaker, 48V DC |
|---|---|
| Brand | Sea-Dog |
| Manufacturer Part Number | 830524 |
| UPC | 035514830683 |
| Model | SD-87 |
| Type | Resettable Circuit Breaker |
| Amperage | 60 Amp |
| Voltage | 48 Volt DC |
| Reset Type | Manual Reset |
| Color | Black |
| Housing Material | Plastic |
| Mounting | Surface Mount |
| Terminal | 5/16 Inch-18 Stud Terminal |
| Protection Rating | IP66 |
| Standards | SAE J553 / ABYC-E11 / UL1077 / SAE J1171 |
| Quantity | Single |
Frequently asked questions
What is the SD-87 rated for?
60 amps at 48 volts DC. It's sized for high-current 48-volt circuits like trolling motor banks and lithium house systems.
Does it reset itself or do I reset it by hand?
It's a manual reset. When the breaker trips, it stays open until you push the button back in. That's on purpose, so it won't recycle back into a fault you haven't fixed yet.
Is it waterproof?
It carries an IP66 rating, which means it's dust-tight and protected against heavy spray and washdown. Good for consoles, battery compartments, and open rigging areas.
What terminals does it use?
5/16 inch-18 studs. Standard ring lugs bolt right on, so wiring it in is straightforward.
Can I use it on a 12-volt or 24-volt system?
Yes. It's rated up to 48 volts DC, so it works fine on lower-voltage DC circuits as long as the load stays within the 60-amp rating.
Is it safe to mount near a gasoline engine?
Yes. It meets SAE J1171, the ignition-protection standard, so it's rated for installation near gasoline engines and in compartments where fuel vapors can collect.
How does it mount?
It surface mounts flat against a bulkhead or panel. The black plastic housing sits on the surface and the studs pass through for your wiring.
