Sea-Dog SD-17 Panel-Mount Hi-Amp Breakers: Ratings & Fit

Sea-Dog SD-17 panel-mount Hi-Amp breakers combine resettable thermal protection with a visible trip indication and a sealed IP67 case. They use ¼-28 stud terminals and have different mounting geometry from the 830220-series surface-mount breakers. Match the original mounting method and circuit's current rating.

SD-17 panel-mount breaker ratings

The table compares exact manufacturer numbers and separates electrical ratings from mechanical fit. On small screens, scroll horizontally to see all specifications.

Sea-Dog MPN Amps Mounting Terminal DC maximum
830190 25A Panel mount ¼-28 studs 48V DC
830191 30A Panel mount ¼-28 studs 48V DC
830193 50A Panel mount ¼-28 studs 48V DC
830194 60A Panel mount ¼-28 studs 48V DC
830195 70A Panel mount ¼-28 studs 48V DC
830197 100A Panel mount ¼-28 studs 48V DC
830198 120A Panel mount ¼-28 studs 48V DC
830199 150A Panel mount ¼-28 studs 48V DC
Important fit distinction: Panel- and surface-mounted SD-17 breakers have different case dimensions even at the same amperage. Sea-Dog lists the panel style at IP67, up to 48V DC, with ¼-28 stud terminals. Manufacturer diagram labels A–E are provided below; use the original dimension drawing for measurement locations rather than assuming A is the cutout.

Manufacturer diagram dimensions: A = 2-15/16 in, B = 1-15/16 in, C = 2-1/8 in, D = 2-7/16 in, E = 1-9/16 in. These are the manufacturer's labelled measurements, not all mounting-hole dimensions. See the linked original drawing for what each label measures.

Hi-Amp construction: Sealed IP67 housing with a manual reset and visible trip indication. Sea-Dog lists 3,000A interrupt capacity at 14V DC and 1,500A at 48V DC, with ignition protection to SAE J1171.

Manufacturer dimension and specification references: dimension diagram. These include the original switch and breaker drawings.

What to check before selecting a replacement

  1. Confirm the circuit calls for a panel-mounted breaker with an opening through the mounting surface.
  2. Match the existing amp value and the ¼-28 stud terminal connections.
  3. Measure the enclosure and use Sea-Dog's A–E dimension sketch instead of substituting a surface-mount body.
  4. Inspect wire lugs, insulation, cable protection and current-carrying capacity before installation.
  5. Use the correct engine-compartment electrical protection and check clearance for manual reset and visible trip indication.

Find matching Sea-Dog parts

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Continue with compact SD-13 breakers, surface-mount SD-17 breakers. For more general electrical switching see our Sea-Dog maintained-versus-momentary toggle comparison. For inline fuse components, visit the Sea-Dog AGC fuse-holder selection guide.

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