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

Blue Sea Systems M-Series Battery Switches - 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.

Products on this page may be available in bulk, please call for a quote


  • ON-OFF Circuit
  • Cranking Rating (30 sec.): 900A
  • 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
5411 Blue Sea Systems 6004-BSS, M-Series Single Circuit ON-OFF with Locking Key, Red, 300 Amp (1 MIN) 40.36 1 EA
5416 Blue Sea Systems 6004200-BSS, M-Series Single Circuit ON-OFF with Locking Key, Black, 300 Amp (1 MIN) 40.36 1 EA
5418 Blue Sea Systems 6005-BSS, M-Series Single Circuit ON-OFF Battery Switch with Key, Red, 300 Amp (1 MIN) 33.69 1 EA
5419 Blue Sea Systems 6005200-BSS, M-Series Single Circuit ON-OFF Battery Switch with Key, Black, 300 Amp (1 MIN) 33.69 1 EA
5420 Blue Sea Systems 6006-BSS, M-Series Single Circuit ON-OFF Battery Switch with Removable Knob, Red, 300 Amp (1 MIN) 36.73 1 EA Call
5421 Blue Sea Systems 6006200-BSS, M-Series Single Circuit ON-OFF Battery Switch with Removable Knob, Black, 300 Amp (1 MIN) 27.84 1 EA
5428 Blue Sea Systems 7900-BSS, M-Series Removable Key Replacement, Red (1 MIN) 3.93 1 EA
5429 Blue Sea Systems 7900200-BSS, M-Series Removable Key Replacement, Black (1 MIN) 4.10400 1 EA

Blue Sea Systems M-Series Battery Switches - 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. 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.

Products on this page may be available in bulk, please call for a quote


  • ON-OFF Circuit
  • Cranking Rating (10 Sec.) 1,000A; Cranking Rating (1 Min.) 650A
  • 5426 & 5427: CANNOT be used to switch positive and negative conductors because of the combine feature.
  • Easily mount any M-Series battery switch with switch panel 5433.
  • Intermittent Rating (5 Min.) 450A
  • Continuous Rating: 300A @ 32V DC Maximum
  • IP66 Rated, CE marked, ISO 8846, UL listed - UL1107 electrical power switches.
  • Meets ABYC requirements and UL 1500, SAE J1171 external ignition protection requirements.
  • Replacement removable knobs available.
  • 5424 & 5425: May be used to switch the positive and negative conductors for required applications.
Item Description Price Qty in
Package
In Stock Add to Cart
5424 Blue Sea Systems 6010-BSS, M-Series Dual Circuit Battery Switch with Removable Knob, Red, 300 Amp (1 MIN) 50.79 1 EA
5425 Blue Sea Systems 6010200-BSS, M-Series Dual Circuit Battery Switch with Removable Knob, Black, 300 Amp (1 MIN) 55.81 1 EA
5426 Blue Sea Systems 6011-BSS, M-Series Dual Circuit Plus Battery Switch with Removable Knob, Red, 300 Amp (1 MIN) 55.81 1 EA
5427 Blue Sea Systems 6011200-BSS, M-Series Dual Circuit Plus Battery Switch with Removable Knob, Black, 300 Amp (1 MIN) 55.81 1 EA

Blue Sea Systems M-Series Battery Switches - 3 Position

These three 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.


  • Cranking Rating (30 sec.): 900A
  • Intermittent Rating (5 Min.) 500A
  • Continuous Rating: 300A @ 32V DC Maximum
  • CE marked, ISO 8846, UL listed - UL1107 electrical power switches.
  • Meets ABYC requirements and UL 1500, SAE J1171 external ignition protection requirements.
  • IP66
  • Mounting Holes: Accept #10 Screw
  • Maximum Voltage: 32V DC
Item Description Price Qty in
Package
In Stock Add to Cart
5448 Blue Sea Systems 6008-BSS, M-Series Selector 3 Position Battery Switch, Red, 300 Amp (1 MIN) 61.06 1 EA
5449 Blue Sea Systems 6008200-BSS, M-Series Selector 3 Position Battery Switch, Black, 300 Amp (1 MIN) 61.06 1 EA

Blue Sea Systems M-Series Battery Switches - 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 Blue Sea Systems 6007-BSS, M-Series Selector 4 Position Battery Switch with Removable Knob, Red, 300 Amp (1 MIN) 44.77 1 EA
5423 Blue Sea Systems 6007200-BSS, M-Series Selector 4 Position Battery Switch with Removable Knob, Black, 300 Amp (1 MIN) 44.77 1 EA

Blue Sea Systems M-Series Battery Switches - 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
5431 Blue Sea Systems 7901200-BSS, M-Series Removable Knob Replacement, Black (1 MIN) 7.34 1 EA Call
5432 Blue Sea Systems 9159-BSS, M-Series Paralleling Link Bus, 2 per Pack (1 MIN) 17.80 1 EA
5433 Blue Sea Systems 1139-BSS, M-Series Panel Battery Switch Module (1 MIN) 72.12 1 EA Call
Prop65 Warning