Sea-Dog 420544-1 4-Gang AGC Fuse Block with Negative Buss Bar, 20 Amp 12 Volt DC

The Sea-Dog 420544-1 is a 4-gang AGC fuse block with a separate negative terminal bar, built for organizing and distributing multiple 12 volt DC circuits from a single, compact panel. It combines positive fuse protection with a dedicated negative buss bar, so you can route and connect positive or negative circuits without running a tangle of individual wires. This makes it a practical choice for consolidating multiple accessory circuits or feeding several loads from one power source aboard a boat.

Each of the four positions is rated 20 Amps at 12 Volts DC and accepts standard 1/4 inch x 1-1/4 inch AGC style fuses (sold separately), letting you size protection per circuit as needed. The block is constructed of molded Bakelite with stamped brass fuse clips and screws for durable, corrosion-resistant electrical contact. It measures 3-5/16 inches by 3 inches and installs using #8 RH fasteners (not included). Sold in bulk display packaging.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 420544-1
• Number of Gangs/Positions: 4
• Current Rating: 20 Amps
• Voltage: 12 Volts DC
• Material: Stamped Brass / Molded Bakelite
• Dimension A: 3-5/16 inches
• Dimension B: 3 inches
• Weight: 0.236 pounds
• Fuse Type Accepted: AGC style, 1/4 inch x 1-1/4 inch (fuses sold separately)
• Connector Type: Screw
• Mounting Hardware: #8 RH fasteners (not included)
• UPC: 035514421799

Frequently Asked Questions

How many circuits does the Sea-Dog 420544-1 fuse block support? The 420544-1 has 4 gangs, so it can protect and distribute up to four separate 12 volt DC circuits from one block.

What is the amperage and voltage rating? Each position on the 420544-1 is rated 20 Amps at 12 Volts DC.

What size fuses does this block use? It accepts standard 1/4 inch x 1-1/4 inch AGC style fuses, which are sold separately from the block itself.

What is the negative buss bar for? The 420544-1 includes a separate negative terminal bar alongside the fused positive terminals, letting you route and connect positive or negative circuits from the same block for consolidated circuit distribution.

What material is the fuse block made of? The Sea-Dog 420544-1 is constructed of molded Bakelite with stamped brass fuse clips and screws for durable electrical contact.

How big is the 420544-1 fuse block? It measures 3-5/16 inches by 3 inches.

How much does the fuse block weigh? The Sea-Dog 420544-1 weighs 0.236 pounds.

What hardware is needed to install it? Installation uses #8 RH fasteners, which are not included with the 420544-1.

Are fuses included with the block? No, fuses are sold separately; the 420544-1 accepts 1/4 inch x 1-1/4 inch AGC style fuses.

Is this fuse block suitable for marine use? Yes, the Sea-Dog 420544-1 is designed for 12 Volt DC circuit distribution and uses corrosion-resistant brass fuse clips and screws suited to marine electrical panels.

What connector type does the 420544-1 use? It uses screw-type connectors for wiring each circuit.

How is this different from the 6-gang version? The 420544-1 is the 4-gang version of Sea-Dog's AGC fuse block line; a 6-gang version with larger dimensions and a different part number is also available for applications needing more circuits.