8-pole 12V horizontal circuit breaker panel
Ref : AD063
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HD 150A Circuit Breaker
Ref : 185150P/DSP
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80A HD circuit breaker with manual reset
Ref : 185080F/DSP
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16-circuit 12V DC breaker panel, square
Ref : 904NM
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12-circuit 12V DC vertical circuit breaker panel
Ref : 902NMV
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12-circuit 12V DC circuit breaker panel (horizontal)
Ref : 902NMH
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8-pole DC 12V circuit breaker panel
Ref : 901H
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Battery management panel with 16 single-pole circuit breakers
Ref : 800-MS3
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HD 150A resettable circuit breaker
Ref : 185150F/DSP
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Thermal circuit breaker 80A
Ref : 185080P-01-1
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HD 50A Circuit Breaker
Ref : 185050F/DSP
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Adapter for Series 285 Circuit Breaker - Panel Mounting
Ref : 7198-BSS
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25 A surface-mount series 285 circuit breaker
Ref : 7180-BSS
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Circuit breaker series 187 - Surface mount 200 A
Ref : 7149-BSS
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Flat rocker switch circuit breaker series A - 10 A bipolar
Ref : 7410-BSS
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Flat rocker switch circuit breaker series A - single pole 15 A
Ref : 7403-BSS
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Flat toggle circuit breaker series A - single pole 10 A
Ref : 7402-BSS
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Flat rocker switch circuit breaker series A - single pole 5 A
Ref : 7400-BSS
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Flat rocker switch circuit breaker series A - single pole 2.5 A
Ref : 7399-BSS
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Blue Sea Series C rocker switch circuit breaker - 3-pole 50 A
Ref : 7287-BSS
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Toggle switch circuit breaker Series A White - single-pole 50 A
Ref : 7230-BSS
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Toggle circuit breaker Blue Sea Series A Red - single pole 40 A
Ref : 7225-BSS
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Toggle switch circuit breaker series A Black - single-pole 40 A
Ref : 7224-BSS
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Toggle switch circuit breaker Blue Sea Series A White - single-pole 30 A
Ref : 7222-BSS
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Toggle switch circuit breaker Blue Sea Series A single-pole 25 A
Ref : 7218-BSS
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Toggle circuit breaker series A black - single-pole 25 A
Ref : 7216-BSS
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Toggle switch circuit breaker series A white - single-pole 20 A
Ref : 7214-BSS
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Toggle switch circuit breaker A series Black - single pole 20 A
Ref : 7212-BSS
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Toggle circuit breaker series A white - single-pole 15 A
Ref : 7210-BSS
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Toggle circuit breaker BLUE SEA Series A Black - single-pole 15 A
Ref : 7208-BSS
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Toggle switch circuit breaker Blue Sea Series A White - 10 A single-pole
Ref : 7206-BSS
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Toggle switch circuit breaker BLUE SEA series A black - single pole 10 A
Ref : 7204-BSS
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Toggle circuit breaker series A White - single-pole 5 A
Ref : 7202-BSS
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Toggle switch circuit breaker Blue Sea Series A Black - single-pole 5 A
Ref : 7200-BSS
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285 Series Circuit Breaker - Surface Mount 150 A
Ref : 7189-BSS
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Circuit breaker Series 285 - Surface mount 120 A
Ref : 7188-BSS
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Circuit breaker Series 285 - Surface mount 100 A
Ref : 7187-BSS
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Circuit breaker series 285 - Surface mount 80 A
Ref : 7186-BSS
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Circuit breaker series 285 - Surface mount 70 A
Ref : 7185-BSS
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Circuit breaker series 285 - Surface mount 60 A
Ref : 7184-BSS
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Series 285 Circuit Breaker - Surface Mount 50 A
Ref : 7183-BSS
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Circuit breaker series 285 - Surface mount 40 A
Ref : 7182-BSS
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Circuit breaker series 285 - Surface mount 30 A
Ref : 7181-BSS
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Circuit breaker series 187 - Surface mount 150 A
Ref : 7148-BSS
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Circuit breaker series 187 - Surface mount 135 A
Ref : 7147B-BSS
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Circuit breaker series 187 - Surface mount 120 A
Ref : 7146-BSS
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Circuit breaker series 187 - Surface mount 100 A
Ref : 7144-BSS
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Series 187 circuit breaker - Surface mounted 80 A
Ref : 7142B-BSS
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Circuit breaker series 187 - Surface mount 70 A
Ref : 7141-BSS
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Circuit breaker series 187 - Surface mount 60 A
Ref : 7140-BSS
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Circuit breaker series 187 - Surface mount 50 A
Ref : 7139-BSS
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Circuit breaker series 187 - Surface mount 40 A
Ref : 7138-BSS
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Circuit breaker series 187 - Surface mount 30 A
Ref : 7136-BSS
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Series 285 Circuit Breaker - Panel Mount 150 A
Ref : 7089-BSS
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Circuit breaker series 285 - Panel mount 120 A
Ref : 7088-BSS
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Circuit breaker series 285 - Panel mount 100 A
Ref : 7087-BSS
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Circuit breaker series 285 - Panel mount 80 A
Ref : 7086-BSS
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Circuit breaker series 285 - Panel mount 70 A
Ref : 7085-BSS
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Circuit breaker series 285 - Panel mount 60 A
Ref : 7084-BSS
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Circuit breaker series 285 - panel mount 50 A
Ref : 7083-BSS
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Circuit breaker series 285 - Panel mount 40 A
Ref : 7082-BSS
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Circuit breaker series 285 - Panel mount 30 A
Ref : 7081-BSS
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Circuit breaker with push-button reset only - 40 A
Ref : 7061-BSS
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Reset button only. Fast-connect circuit breaker (30A)
Ref : 7059-BSS
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Circuit breaker with push-button reset only - 25 A
Ref : 7058-BSS
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Circuit breaker with push-button reset only - 20 A
Ref : 7057-BSS
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Circuit breaker with push-button reset only – 15 A
Ref : 7056-BSS
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Reset button only. Fast-connect circuit breaker (10A)
Ref : 7054-BSS
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Quick-connect circuit breaker with only push-button reset - 7 A
Ref : 7053-BSS
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Circuit breaker with push-button reset only - 5 A
Ref : 7052-BSS
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Circuit breaker with push-button reset only - 3 A
Ref : 7050-BSS
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187 Series Circuit Breaker - Panel Mount 200 A
Ref : 7049-BSS
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Circuit breaker series 187 - Panel mount 150 A
Ref : 7048-BSS
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Circuit breaker series 187 - Panel mount 135 A
Ref : 7047-BSS
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Circuit breaker series 187 - Panel mount 120 A
Ref : 7046-BSS
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Circuit breaker series 187 - Panel mount 100 A
Ref : 7044-BSS
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Circuit breaker series 187 - Panel mount 90 A
Ref : 7043-BSS
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Circuit breaker series 187 - Panel mount 80 A
Ref : 7042-BSS
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Circuit breaker series 187 - Panel mount 70 A
Ref : 7041-BSS
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Series 187 Circuit Breaker - Panel Mount 60 A
Ref : 7040-BSS
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Circuit breaker series 187 - Panel mount 50 A
Ref : 7039-BSS
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Circuit breaker series 187 - Panel mount 40 A
Ref : 7038-BSS
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Circuit breaker series 187 - Panel mount 30 A
Ref : 7036-BSS
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ST CLB circuit breaker block - 6 positions with negative busbar
Ref : 5052-BSS
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Black Push Button Reset Circuit Breaker Boot
Ref : 4137B-BSS
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Push-button reset circuit breaker boot - Transparent
Ref : 4135-BSS
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Circuit breaker with push-button reset only, medium duty - 50 A
Ref : 2142-BSS
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Circuit breaker with screw terminals and push-button reset only - 5 A
Ref : 2130-BSS
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8-circuit 12V DC vertical circuit breaker panel
Ref : 901V
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Learn more
Marine circuit breakers to protect onboard circuits
A circuit breaker protects a cable and its circuit from overcurrent while allowing reset after tripping. Onboard, it is selected based on rating, voltage, interrupting rating, mounting type, environment, and circuit role: electronics, pumps, windlass, bow thruster, charger, DC distribution, or main panel.
Panel-mounted circuit breakers: lever, rocker, and push-button
Panel-mounted circuit breakers are installed on the front panel and can serve both as protection and switching devices. Blue Sea Systems offers breaker ranges including the Series A lever-type unipolar or flat rocker unipolar breakers, as well as push-button reset breakers. These formats suit electrical panels and service circuits when the rating matches the cable cross-section.
Series 285 and 187 for power circuits
Series 285 and 187 breakers are used for higher-current circuits or installations near batteries, junction boxes, and distribution panels. Series 285 is available in surface-mount or panel-mount versions. Series 187 also covers surface and panel versions, with power ratings such as the Series 187 - Surface-mount 80 A or the Series 187 - Surface-mount 200 A.
BEP breakers and high-current protection
BEP breakers complement the selection for power circuits and distribution assemblies. The 80 A thermal circuit breaker illustrates panel-mount resettable thermal breakers, while the 80 A HD reset breaker serves surface-mount applications. For higher currents, options include the 150 A HD breaker, the 150 A resettable HD breaker, or the 50 A HD breaker, depending on mounting and cable cross-section.
Blocks, panels, and accessories
For organized distribution, the ST CLB 6-position breaker block with negative busbar groups multiple circuits with a negative busbar. BEP panels, such as the 16-circuit 12 V DC square panel, the 12-circuit 12 V DC vertical panel, the 12-circuit 12 V DC horizontal panel, or the 8-circuit 12 V DC horizontal unipolar panel, cater to multi-circuit panels. Accessories like push-button breaker caps and the Series 285 panel-mount adapter adapt mounting and protection on the front panel.
How to choose a circuit breaker
Breaker rating is selected first to protect the cable, not just the connected device. Verify cross-section, length, nominal current, inrush current, voltage, environment, reset type, and accessibility. For complete installations, also see the Electrical panels, Fuses, Cabling, Terminals, Battery disconnects, Distribution, and Electrical collections.

