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Ultimate Blue Sea E-series Battery Switch On-off Kit [bSBg0kxM]

$19.99 $63.99 -69%

Blue Sea Systems e-Series On Off Battery SwitchModel: 9003E-BSS350 Amps continuous rating for inboard gasoline or diesel engines.Tin-plated copper studs for maximum conductivity and corrosion resistanceAccepts up to 4/0 AWG battery cablesStuds accept

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Blue Sea Systems e-Series On Off Battery Switch

Model: 9003E-BSS
  • 350 Amps continuous rating for inboard gasoline or diesel engines.
  • Tin-plated copper studs for maximum conductivity and corrosion resistance
  • Accepts up to 4/0 AWG battery cables
  • Studs accepts 3/8"" (M10) ring terminals
  • 7/8"" (22mm) stud length accepts multiple cable terminals
  • Blue Sea Systems one-piece terminal stud design never loosens over time
  • Fits most Perko and Guest low amperage battery switch hole patterns
  • Case design allows surface or rear panel mounting
  • Tactile indicator conveys knob position by feel
  • Waterproof — rated IP66 from water projected in powerful jets
  • Ignition protected—safe for installation aboard gasoline powered boats
  • Make-before-break contact design allows switching without power interruption

Switches a single battery to a single load group

Specifications
Switch Type Single Circuit ON-OFF
Color Red
Switch Positions 2
Battery Combine No
Alternator Field Disconnect No
Maximum Voltage 48V DC
Terminal Stud Torque 140 in-lb (15.82 Nm)
Continuous Rating 350A
Intermittent Rating 600A (5 min)
Cranking Rating 30 sec 1200A per circuit
Battery Inputs 1
Cable Clearance For 4/0 AWG Cables 1.10in (27.94 mm)
Cable Size to Meet Ratings 4/0 AWG (120mm )
Mounting Holes Accept 1/4"" (M6) Screw
Stud Material Tinned Copper
Terminal Stud Size 3/8"" - 16 (M10)

What Our Customers Say

December 30, 2025

Absolutely no complaints!

An amazing item. Would highly recommend.

- Thea K..

December 30, 2025

Absolutely no complaints!

I'm happy with this. It's great.

- Melisa J..

December 30, 2025

Absolutely no complaints!

A fantastic product. I just love it.

- Jazmine C..

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