Sea-Dog SD-17 50A 48V Circuit Breaker 830193
Sea-Dog SD-17 50A 48V Circuit Breaker 830193 — Product description
The Sea-Dog SD-17 is a 50 amp resettable thermal circuit breaker rated for 48 volt DC service. It protects your wiring from overloads and shorts, and the switchable reset lets it double as an on/off switch at the panel. IP67 sealed for spray, rain, and washdown.
The Sea-Dog SD-17 is a 50 amp resettable thermal circuit breaker built to protect the wiring and gear on your boat from overloads and dead shorts. It's rated for 48 volt DC service, so it drops into everything from a 12 volt accessory circuit up through a 48 volt trolling motor bank. If a circuit pulls more current than it should, the breaker trips before your wiring cooks.
What we like about the SD series is the switchable reset. This isn't a set-and-forget breaker buried behind a panel. You can flip it off by hand to kill a circuit, then flip it back on when you're ready. That means it doubles as a panel switch and a breaker in one spot, which saves room at the helm and keeps your wiring simpler.
The housing carries an IP67 protection rating, so it shrugs off spray, rain, and washdown without complaint. Good thing on an open console or in a wet bilge. The body is molded plastic in black, and it panel-mounts into a standard cutout on a breaker panel, console, or dash. Two 1/4 inch-28 stud terminals take ring terminals and torque down clean, so you get a solid connection that won't back out with vibration.
This one meets the standards that matter on the water. ABYC E-11 for AC and DC electrical systems, UL1077 for supplementary protectors, plus SAE J1171 and J1625. If you're wiring to survey or you just want to do it right the first time, those markings tell you the part was built for marine duty, not pulled off an automotive shelf.
Sizing is straightforward. A 50 amp breaker protects wire rated to carry at least 50 amps, so match it to your conductor gauge and the load. It's a common size for windlasses, larger pumps, inverters, electronics sub-panels, and 48 volt motor feeds. If you're not sure what amperage your circuit needs, size the breaker to the wire, not the other way around. And if you want a hand matching it to your setup, give us a call.
Key Features
- 50 amp thermal trip protects your wiring and gear from overloads and dead shorts
- Rated for 48 volt DC service, so it works on 12V, 24V, 36V, and 48V circuits
- IP67 sealed housing shrugs off spray, rain, and washdown
- Manual switchable reset lets it double as an on/off switch right at the panel
- 1/4 inch-28 stud terminals accept ring terminals for a clean, vibration-proof connection
- Panel-mount body drops into a standard breaker panel, console, or dash cutout
- Meets ABYC E-11, UL1077, SAE J1171, and SAE J1625 marine standards
- Molded black plastic housing built for the wet, corrosive marine environment
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-17 50 Amp 48V DC Resettable Thermal Circuit Breaker |
|---|---|
| Brand | Sea-Dog |
| Manufacturer Part Number | 830193 |
| UPC | 035514830225 |
| Series | SD-17 |
| Type | Resettable Thermal Circuit Breaker |
| Amperage | 50 Amp |
| Voltage | 48 Volt DC |
| Reset Type | Manual / Switchable Reset |
| Color | Black |
| Material | Plastic |
| Mounting | Panel Mount |
| Terminal | 1/4 Inch-28 Stud Terminal |
| Standards | SAE J1625 / ABYC-E11 / UL1077 / SAE J1171 |
| Protection Rating | IP67 |
| Sold As | Single |
Frequently asked questions
What does the 50 amp rating mean for my wiring?
The breaker trips when current climbs past 50 amps, protecting the circuit before the wire overheats. Match it to conductor rated to carry at least 50 amps, and size the breaker to the wire, not the load.
Can I use this on a 12 or 24 volt system?
Yes. It's rated up to 48 volt DC, so it works fine on 12V, 24V, and 36V circuits too. The voltage rating is a maximum, so anything at or below 48 volts DC is covered.
Is the SD-17 waterproof?
It carries an IP67 protection rating, so it handles spray, rain, and washdown. That makes it a solid pick for an open console or a spot that sees water.
Can it be used as a switch?
Yes. The manual switchable reset lets you flip the circuit off by hand and back on when you want, so it doubles as an on/off switch and a breaker in one spot.
How does it mount and what terminals does it use?
It's a panel-mount breaker that drops into a standard cutout on a breaker panel, console, or dash. The two 1/4 inch-28 stud terminals take ring terminals that torque down clean.
Is it built to marine standards?
It meets ABYC E-11 for boat electrical systems, UL1077 for supplementary protectors, plus SAE J1171 and J1625. Those markings tell you it was built for marine duty.
