Circuit Protection
Protect electrical circuits with coast guard- and military-approved circuit breakers, fuses, fuse holders, and accessories. Explore reliable options for marine AC and DC systems, including Carling breakers for equipment, distribution panels, and applications requiring UL 489 listed branch circuit protection.
324 products
Subcategories
Blue Sea SystemsBlue Sea Systems ST Blade Fuse Block - 6 Independent Circuits with Cover
ST Blade Fuse Block - 6 Independent Circuits with Cover. Corrosion resistant, tin-plated copper fuse clips reduce heat and improve the efficiency of the electrical system. Clear insulating cover with label recesses accepts Small Format Labels.
SKU BLUE-5035
$36.40MSRP $43.68
Blue Sea SystemsBlue Sea Systems ST Blade Fuse Block 12 Circuits with Cover
12-circuit ST Blade fuse block with cover, 100A total / 30A per circuit, 32V DC max, no negative bus. Accepts ATO/ATC blade fuses, sold separately.
SKU BLUE-5029
$46.20MSRP $55.44
Blue Sea SystemsBlue Sea Systems ST Blade Fuse Block 12 Circuits with Negative Bus and Cover
12-circuit ST Blade fuse block, 100A total / 30A per circuit, 32V DC, with an integrated negative bus. Accepts ATO/ATC blade fuses, sold separately.
SKU BLUE-5026
$51.80MSRP $62.16
Blue Sea SystemsBlue Sea Systems ST Blade Fuse Block 6 Circuits with Cover
6-circuit ST Blade fuse block with cover, 100A total / 30A per circuit, 32V DC max, no negative bus. Accepts ATO/ATC blade fuses, sold separately.
SKU BLUE-5028
$36.40MSRP $43.68
Blue Sea SystemsBlue Sea Systems ST Blade Fuse Block 6 Circuits with Negative Bus and Cover
6-circuit ST Blade fuse block, 100A total / 30A per circuit, 32V DC, with an integrated negative bus. Accepts ATO/ATC blade fuses, sold separately.
SKU BLUE-5025
$42.00MSRP $50.40
Blue Sea SystemsBlue Sea Systems ST Blade Fuse Block 6 Independent Circuits
6 independent-circuit ST Blade fuse block, 30A per circuit / 40A per jumped group, 32V DC. Includes two terminal jumpers. Fuses sold separately.
SKU BLUE-5037
$41.30MSRP $49.56
Blue Sea SystemsBlue Sea Systems ST CLB Circuit Breaker Block - 6 Independent Circuits
ST CLB Circuit Breaker Block - 6 Independent Circuits. Quick connect clips allow circuit breakers to snap easily into place. Tin-plated copper busses and screw terminals.
SKU BLUE-5050
$51.80MSRP $62.16
Blue Sea SystemsBlue Sea Systems ST CLB Circuit Breaker Block - 6 Position with Negative Bus
ST CLB Circuit Breaker Block - 6 Position with Negative Bus. Quick connect clips allow circuit breakers to snap easily into place. Tin-plated copper busses and screw terminals.
SKU BLUE-5052
$66.50MSRP $79.80
Blue Sea SystemsBlue Sea Systems ST CLB Circuit Breaker Block 12 Position with Negative Bus
12-position resettable circuit breaker block with an integrated negative bus, 100A total / 32A per circuit, 32V DC max. CLB breakers sold separately.
SKU BLUE-5054
$113.40MSRP $136.08
Blue Sea SystemsBlue Sea Systems ST CLB Circuit Breaker Block Jumper
Snap-in jumper for Blue Sea ST CLB Circuit Breaker Blocks. Bridges a position to the common source bus in place of a breaker. Sold 5 per package.
SKU BLUE-5049
$7.70MSRP $9.24
Blue Sea SystemsBlue Sea Systems ST Glass 6 Circuit Fuse Block with Cover
6-circuit 3AG glass fuse block with cover, 100A total / 30A per circuit, 32V DC max. Accepts AGC, MDL, and other glass fuses, sold separately.
SKU BLUE-5018
$39.20MSRP $47.04
Blue Sea SystemsBlue Sea Systems ST Glass 6 Circuit Fuse Block with Negative Bus and Cover
6-circuit 3AG glass fuse block with an integrated negative bus and cover, 100A total / 30A per circuit, 32V DC maximum. Fuses sold separately.
SKU BLUE-5015
$46.20MSRP $55.44
Blue Sea SystemsBlue Sea Systems ST-Blade Water-Resistant Fuse Block
IP66 water-resistant ST Blade fuse block, 4 circuits, 80A total / 25A per circuit, 32V DC maximum. Fuses and circuit breakers sold separately.
SKU BLUE-5056
$47.60MSRP $57.12
Blue Sea SystemsBlue Sea Systems SafetyHub 100 Fuse Block
Ignition-protected fuse block consolidating 7 circuits (1-200A), 280A combined max, IP66. Includes ATO/ATC connector plug. Fuses sold separately.
SKU BLUE-7725
$161.00MSRP $193.20
Carling TechnologiesCarling A-Series A21 10A Single-Pole Rocker Circuit Breaker
Carling A-Series 10A single-pole hydraulic-magnetic supplementary protector with a flat rocker and slanted 10-32 screw terminals. MPN A21-B0-34-610-9D1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-A21-RKR-10A
$29.15
Carling TechnologiesCarling A-Series A21 15A Single-Pole Rocker Circuit Breaker
Carling A-Series 15A single-pole hydraulic-magnetic supplementary protector with a flat rocker and slanted 10-32 screw terminals. MPN A21-B0-34-615-9D1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-A21-RKR-15A
$29.64
Carling TechnologiesCarling A-Series A21 20A Single-Pole Rocker Circuit Breaker
Carling A-Series 20A single-pole hydraulic-magnetic supplementary protector with a flat rocker and slanted 10-32 screw terminals. MPN A21-B0-34-620-9D1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-A21-RKR-20A
$30.06
Carling TechnologiesCarling A-Series A21 30A Single-Pole Rocker Circuit Breaker
Carling A-Series 30A single-pole hydraulic-magnetic supplementary protector with a flat rocker and slanted 10-32 screw terminals. MPN A21-B0-34-630-9D1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-A21-RKR-30-A
$27.70
Carling TechnologiesCarling A-Series A21 5A Single-Pole Rocker Circuit Breaker
Carling A-Series 5A single-pole hydraulic-magnetic supplementary protector with a flat rocker and slanted 10-32 screw terminals. MPN A21-B0-34-450-9D1-C. UL 1077 Recognized; CSA Accepted.
SKU CB-A21-RKR-5A
$27.70
Carling TechnologiesCarling A-Series AM2 10A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 10A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-10AMP
$207.90
Carling TechnologiesCarling A-Series AM2 15A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 15A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-15AMP
$207.90
Carling TechnologiesCarling A-Series AM2 1A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 1A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-01AMP
$207.90
Carling TechnologiesCarling A-Series AM2 1A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 1A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-1AMP-501
$207.90Carling A-Series AM2 1A Double-Pole Sealed Toggle Circuit Breaker
Carling A-Series AM2 1A double-pole hydraulic-magnetic supplementary protector with a sealed metal toggle.
SKU CB-AM2-01AMP - 501
$207.90
