Sea-Dog Thermal AC/DC Circuit Breaker, 15 Amp, Panel Mount, Part 420815-1

The Sea-Dog 420815-1 is a 15 amp thermal AC/DC circuit breaker built to protect an onboard electrical circuit from damage caused by excess current. Unlike a sacrificial fuse, this breaker is resettable after tripping, so a nuisance trip does not mean a trip to the parts store. It uses a push-to-reset design that is vibration and shock resistant, making it well suited to the constant motion and engine vibration found on a boat.

The housing is molded from Bakelite for durability in a marine electrical panel, and the internal contacts are stamped brass on quick-connect terminals for a fast, secure wiring connection. The breaker is built for panel mounting in a compact footprint, and it is rated 5-30A at 125-250 VAC and 32 VDC, covering both AC and DC circuit protection on a single design. For installations exposed to spray or wet conditions, Sea-Dog offers a separate Thermal Breaker Boot (part 420839) that fits over the reset button for added environmental protection.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 420815-1
• Current Rating: 15 Amps
• Circuit Type: Thermal AC/DC
• Voltage Rating: 125-250 VAC / 32 VDC
• Mounting Type: Panel Mount
• Switch Type: Push Button (push-to-reset)
• Resettable: Yes
• Material: Molded Bakelite housing
• Contact Material: Brass (stamped)
• Terminal Type: Quick Connect
• Item Dimensions: 6 x 4 x 1 inches
• Weight: 0.08 pounds
• UPC: 035514420471
• Package Quantity: 10 per pack

Frequently Asked Questions

What is the amp rating of the Sea-Dog 420815-1 circuit breaker? The Sea-Dog 420815-1 is rated 15 amps, part of a thermal AC/DC circuit breaker line that also protects circuits at 6, 8, 10, 20, and 30 amps.

Can the 420815-1 breaker be reset after it trips? Yes, this is a resettable thermal breaker with a push-to-reset button, unlike a fuse which must be replaced after it blows.

What voltage does the 420815-1 circuit breaker handle? It is rated 125-250 VAC and 32 VDC, allowing the same 15 amp breaker to protect either an AC or a DC circuit.

Is the Sea-Dog 420815-1 designed for both AC and DC circuits? Yes, it is a thermal AC/DC circuit breaker, so the 15 amp rating applies whether it is wired into an AC or a DC circuit.

What is the housing material of the 420815-1 breaker? The housing is molded Bakelite, a rigid, heat-resistant plastic chosen for durability in a marine electrical panel.

What kind of terminals does the 420815-1 breaker use? It uses quick-connect terminal style contacts made of stamped brass, allowing a fast push-on wiring connection.

How is the Sea-Dog 420815-1 breaker mounted? It is a panel-mounted circuit breaker with a compact design intended to be installed directly in an electrical panel.

How many units come in a package of the 420815-1 breaker? The 420815-1 is packaged 10 per pack.

Is there a protective boot available for the 420815-1 breaker? Yes, Sea-Dog offers a separate Thermal Breaker Boot, part 420839, which fits over the reset button to add protection in wet environments; the boot is sold separately from the 420815-1 breaker itself.

What are the dimensions and weight of the 420815-1 breaker? The 420815-1 circuit breaker measures 6 x 4 x 1 inches and weighs 0.08 pounds.

What is the UPC for the Sea-Dog 420815-1 circuit breaker? The UPC for the 420815-1 is 035514420471.

How does a thermal breaker like the 420815-1 compare to a magnetic circuit breaker? A thermal breaker such as the 420815-1 is a more economical alternative to a magnetic breaker while still being vibration and shock resistant and resettable after tripping, rather than needing replacement like a fuse.