Sea-Dog SD-17 100A 48V DC Circuit Breaker
Sea-Dog SD-17 100A 48V DC Circuit Breaker — Product description
The Sea-Dog SD-17 is a 100 amp resettable thermal circuit breaker built to protect high-current DC circuits on your boat. It handles systems up to 48 volts, panel mounts through the dash, and doubles as a manual switch thanks to its switchable reset lever. IP67 sealed and ABYC certified.
When you're running a big load off your DC system, a windlass, a bow thruster, an inverter feed, or a trolling motor circuit, you want overcurrent protection you can actually trust. That's what the Sea-Dog SD-17 does. It's a 100 amp resettable thermal circuit breaker rated for systems up to 48 volts DC, so it covers 12V, 24V, and 48V setups from one part.
The thermal element trips on sustained overcurrent and heat, then you reset it by hand. No fuse to hunt for, no spare to carry. And because it's a switchable-reset design, the lever also works as a manual on/off switch. That's handy when you want to kill power to a circuit for service without pulling terminals or yanking a battery lead.
It panel mounts, so it sits clean in a dash, an electrical panel, or a switch box with the reset lever facing out where you can get to it. Wiring lands on 1/4 inch-28 stud terminals, so you're crimping ring lugs and torquing them down, not fighting with push-on spades that back out over time. The housing is black plastic and sealed to IP67, which means it shrugs off dust and temporary water immersion. Good for open helms, bilge-area panels, and anywhere spray finds its way in.
Certifications matter on the water, and this one's covered. It meets ABYC-E11, the standard your surveyor and your insurance company care about for AC and DC systems on boats. It also carries UL1077, SAE J1625, and SAE J1171 marks, so it's built to recognized supplemental protector and marine ignition-protection standards.
Who's this for? Anybody wiring up a serious DC load and doing it right the first time. If you've got a high-amp accessory that needs its own protected feed, the SD-17 gives you a compact, resettable, code-compliant breaker that installs once and stays put. It ships as a single breaker, so order one per circuit you need to protect.
Key Features
- 100 amp rating handles high-current DC loads like windlasses, thrusters, and inverter feeds
- Rated to 48 volts DC, so one breaker covers 12V, 24V, and 48V systems
- Switchable reset lever doubles as a manual on/off switch for servicing the circuit
- Resettable thermal design means no fuses to replace and no spares to carry
- 1/4 inch-28 stud terminals take ring lugs for a secure, vibration-proof connection
- IP67 sealed black plastic housing resists dust and temporary water immersion
- Meets ABYC-E11, UL1077, SAE J1625, and SAE J1171 standards
- Panel-mount design fits dash, electrical panel, or switch box installations
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 | SD-17 Resettable Thermal Circuit Breaker; 100 Amp; 48 Volt DC; Manual/ Switchable Reset; Black; Plastic; Panel Mount; 1/4 Inch-28 Stud Terminal; SAE J1625/ ABYC-E11/ UL1077/ SAE J1171 Standard; IP67 Protection Rating; Single |
|---|---|
| Brand | Sea-Dog |
| Manufacturer Part Number | 830197 |
| UPC | 035514830263 |
| Series | SD-17 |
| Breaker Type | Resettable Thermal |
| Amperage | 100 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 |
| Quantity | Single |
Frequently asked questions
What voltage systems does the SD-17 work with?
It's rated up to 48 volts DC, so the same breaker works on 12V, 24V, and 48V systems. That covers most house banks, thruster circuits, and 48V trolling motor setups.
Is this a switch as well as a breaker?
Yes. It's a switchable-reset design, so the reset lever also works as a manual on/off switch. You can kill power to the protected circuit for service without disconnecting terminals.
How does it mount?
It's a panel-mount breaker. You mount it through a dash, electrical panel, or switch box so the reset lever faces out where you can reach it. Wiring lands on the 1/4 inch-28 stud terminals with ring lugs.
Is it waterproof?
It carries an IP67 protection rating, which means it resists dust and can handle temporary water immersion. That makes it suitable for open helms and spray-prone panel locations.
Is it ABYC certified for marine use?
Yes. It meets ABYC-E11 along with UL1077, SAE J1625, and SAE J1171 standards, so it's built to recognized marine electrical and ignition-protection requirements.
Does it come as a single breaker or a set?
This is a single breaker. If you need to protect more than one circuit, order one SD-17 per circuit.
