Switches > Battery-Switches > Blue-Sea-Systems-Battery-Switches

Blue Sea Systems Battery Switches - M-Series - Single Circuit

These single circuit Blue Sea Systems battery switches offer 300 amps for outboards and small gasoline or diesel engines. These switches switch a single battery to a single load group and feature tin-plated copper studs for maximum conductivity and corrosion resistance. The studs accept 3/8" (M10) ring terminals and have a 7/8" stud length (22 mm) that can accept multiple cable terminals. Blue Sea Systems one-piece terminal stud design never loosens over time. One-piece stainless flange nuts ensure safe and secure connections. Isolating cover with three snap-in side pieces protects rear contacts and allows easy wire access in any direction. Case design allows surface, rear or front panel mounting options.


  • ON-OFF Circuit
  • Cranking Rating (10 Sec.) 1,500A; Cranking Rating (1 Min.) 775A
  • Intermittent Rating (5 Min.) 500A
  • Continuous Rating: 300A @ 48V DC Maximum
  • IP66
  • CE marked, ISO 8846, UL listed - UL1107 electrical power switches. Meets ABYC requirements. Meets UL 1500 and SAE J1171 external ignition protection requirements.
  • Replacement removable keys and removable knobs available.
  • Connect switches together with paralleling link bus bars 5432.
  • Easily mount any M-Series battery switch with switch panel 5433.

Item Description Price Qty in
Package
In Stock Add to Cart
5418 Single Circuit ON-OFF Battery Switch with Key, Red, 300A (BSS 6005) (1 MIN) 31.76 1 EA
5419 Single Circuit ON-OFF Battery Switch with Key, Black, 300A (BSS 6005200) (1 MIN) 31.76 1 EA
5420 Single Circuit ON-OFF Battery Switch with Removable Knob, Red, 300A (BSS 6006) (1 MIN) 31.76 1 EA Call
5421 Single Circuit ON-OFF Battery Switch with Removable Knob, Black, 300A (BSS 6006200) (1 MIN) 26.24 1 EA
5428 Removable Key Replacement, Red (BSS 7900) (1 MIN) 3.71 1 EA
5429 Removable Key Replacement, Black (BSS 7900200) (1 MIN) 3.71 1 EA

Blue Sea Systems Battery Switches - M-Series - Dual Circuit

These Blue Sea Systems dual circuit battery switches offer 300 amps for outboards and small gasoline or diesel engines. These switches simultaneously switch two isolated battery banks or circuits. May be used to switch the positive and negative conductors for required applications and feature tin-plated copper studs for maximum conductivity and corrosion resistance. The studs accept 3/8" (M10) ring terminals and have a 7/8" stud length (22 mm) that can accept multiple cable terminals. Blue Sea Systems one-piece terminal stud design never loosens over time. One-piece stainless flange nuts ensure safe and secure connections. Isolating cover with three snap-in side pieces protects rear contacts and allows easy wire access in any direction. Case design allows surface, rear or front panel mounting options.


  • ON-OFF Circuit
  • Cranking Rating (10 Sec.) 1,000A; Cranking Rating (1 Min.) 650A
  • Intermittent Rating (5 Min.) 450A
  • Continuous Rating: 300A @ 32V DC Maximum
  • CE marked, ISO 8846, UL listed - UL1107 electrical power switches. Meets ABYC requirements. Meets UL 1500 and SAE J1171 external ignition protection requirements.
  • IP66
  • Replacement removable knobs available.
  • Easily mount any M-Series battery switch with switch panel 5433.

Item Description Price Qty in
Package
In Stock Add to Cart
5424 Dual Circuit Battery Switch with Removable Knob, Red, 300A (BSS 6010) (1 MIN) 47.87 1 EA
5425 Dual Circuit Battery Switch with Removable Knob, Black, 300A (BSS 6010200) (1 MIN) 52.60 1 EA

Blue Sea Systems Battery Switches - M-Series - Dual Circuit Plus

These Blue Sea Systems dual circuit plus battery switches offer 300 amps for outboards and small gasoline or diesel engines. These switches simultaneously switch two isolated battery banks or combines battery banks to all loads. They CANNOT be used to switch positive and negative conductors because of the combine feature. They feature tin-plated copper studs for maximum conductivity and corrosion resistance. The studs accept 3/8" (M10) ring terminals and have a 7/8" stud length (22 mm) that can accept multiple cable terminals. Blue Sea Systems one-piece terminal stud design never loosens over time. One-piece stainless flange nuts ensure safe and secure connections. Isolating cover with three snap-in side pieces protects rear contacts and allows easy wire access in any direction. Case design allows surface, rear or front panel mounting options.


  • ON-OFF Circuit
  • Cranking Rating (10 Sec.) 1,000A; Cranking Rating (1 Min.) 650A
  • Intermittent Rating (5 Min.) 450A
  • Continuous Rating: 300A @ 32V DC Maximum
  • CE marked, ISO 8846, UL listed - UL1107 electrical power switches. Meets ABYC requirements. Meets UL 1500 and SAE J1171 external ignition protection requirements.
  • IP66
  • Replacement removable knobs available.
  • Easily mount any M-Series battery switch with switch panel 5433.

Item Description Price Qty in
Package
In Stock Add to Cart
5426 Dual Circuit Plus Battery Switch with Removable Knob, Red, 300A (BSS 6011) (1 MIN) 52.60 1 EA
5427 Dual Circuit Plus Battery Switch with Removable Knob, Black, 300A (BSS 6011200) (1 MIN) 52.60 1 EA

Blue Sea Systems Battery Switches - M-Series - 4 Position

These four position Blue Sea Systems battery switches offer 300 amps for outboards and small gasoline or diesel engines. These switches switch isolated battery banks to all loads or combines battery banks to all loads and feature tin-plated copper studs for maximum conductivity and corrosion resistance. The studs accept 3/8" (M10) ring terminals and have a 7/8" stud length (22 mm) that can accept multiple cable terminals. Blue Sea Systems one-piece terminal stud design never loosens over time. One-piece stainless flange nuts ensure safe and secure connections. Isolating cover with three snap-in side pieces protects rear contacts and allows easy wire access in any direction. Case design allows surface, rear or front panel mounting options.


  • OFF-1-BOTH-2
  • Cranking Rating (10 Sec.) 1,500A; Cranking Rating (1 Min.) 775A.
  • Intermittent Rating (5 Min.) 500A
  • Continuous Rating: 300A @ 32V DC Maximum
  • CE marked, ISO 8846, UL listed - UL1107 electrical power switches. Meets ABYC requirements. Meets UL 1500 and SAE J1171 external ignition protection requirements.
  • IP66
  • Replacement removable knobs available.
  • Easily mount any M-Series battery switch with switch panel 5433.

Item Description Price Qty in
Package
In Stock Add to Cart
5422 Selector 4 Position Battery Switch with Removable Knob, Red, 300A (BSS 6007) (1 MIN) 42.20 1 EA
5423 Selector 4 Position Battery Switch with Removable Knob, Black, 300A (BSS 6007200) (1 MIN) 42.20 1 EA

Blue Sea Systems Battery Switches - M-Series - Accessories

Select from the following accessories to replace, enhance or connect the Blue Sea Systems Battery Switches - M-Series - Single Circuit: replacement knobs, paralleling link bus, or a switch panel. Replacement knobs are available to replace a lost or broken knob. The paralleling link bus connects two or more switches and the switch panel can be used to mount the M-series switches.


  • Replacement knobs available in black or red.
  • Paralleling link bus includes 2 in each pack.
  • Battery switch mounting panel accepts the M-Series battery switches.
  • M-Series battery switch mounting panel dimensions: 4.88" x 4.75".
Item Description Price Qty in
Package
In Stock Add to Cart
5430 Removable Knob Replacement, Red (BSS 7901) (1 MIN) 6.92 1 EA
5431 Removable Knob Replacement, Black (BSS 7901200) (1 MIN) 6.92 1 EA
5432 Paralleling Link Bus, 2 per Pack (BSS 9159) (1 MIN) 16.78 1 EA
5433 Panel Battery Switch Module (BSS 1139) (1 MIN) 67.98 1 EA