Blue Sea E-Series Battery Switches On-Off Dual Circuit - RED.

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Switch Type: Dual Circuit Dual Circuit Dual Circuit Plus

Description

Blue Sea Systems e-Series Dual Circuit Battery Switches

Models:

Dual Circuit Battery Switch: 5510E-BSS
Dual Circuit Plus™ Battery Switch (Make-Before-Break): 5511E-BSS

The Blue Sea e-Series Dual Circuit switches provide robust and reliable battery management solutions for inboard gasoline or diesel engines with continuous ratings of 350 Amps. They utilize tin-plated copper studs for superior conductivity and corrosion resistance, accepting large battery cables up to 4/0 AWG. Both switches feature a durable design with multiple mounting options, tactile knob position indicators, and are waterproof and ignition protected, making them ideal for harsh marine environments.

Key Features

350 Amps continuous rating suitable for gasoline and diesel engines
Tin-plated copper studs with large 7/8" (22mm) stud length for multiple cable terminals
Accepts cables up to 4/0 AWG (120mm²)
Fits most Perko and Guest low amperage switch hole patterns
Waterproof rated IP66 from powerful water jets
Ignition protected for safe installation aboard gasoline powered boats
Tactile indicator for knob position by feel
Dual Circuit (5510E-BSS):
- Switch positions: 2 (for two battery inputs)
- No battery combine or alternator field disconnect
- Surface, rear, or front panel mount
- Continuous, intermittent, and cranking ratings favorable for heavy-duty use
Dual Circuit Plus™ (5511E-BSS):
- Switch positions: 3 (includes OFF, Engine, AND both batteries combined)
- Make-before-break contact design for seamless switching without power interruption
- Allows simultaneous switching or combining of two battery banks to all loads
- Surface or rear panel mount

Specifications Comparison

Feature	5510E-BSS Dual Circuit	5511E-BSS Dual Circuit Plus™
Switch Type	Dual Circuit	Dual Circuit Plus™
Color	Red	Red
Switch Positions	2	3
Battery Combine	No	Yes
Alternator Field Disconnect	No	No
Maximum Voltage	32V DC	32V DC
Terminal Stud Torque	140 in-lb (15.82 Nm)	140 in-lb (15.82 Nm)
Continuous Rating	350A	350A
Intermittent Rating (5 min)	525A	525A
Cranking Rating (30 sec)	700A per circuit	700A per circuit
Battery Inputs	2	2
Cable Clearance for 4/0 AWG	1.10 in (27.94 mm)	1.10 in (27.94 mm)
Cable Size to Meet Ratings	4/0 AWG (120mm²)	4/0 AWG (120mm²)
Mounting Holes	Accepts 1/4" (M6) Screw	Accepts 1/4" (M6) Screw
Stud Material	Tinned Copper	Tinned Copper
Terminal Stud Size	3/8" - 16 (M10)	3/8" - 16 (M10)
Mounting Options	Surface, Rear, or Front Panel	Surface or Rear Panel

Typical Use

These switches are ideal for marine battery bank management, providing reliable switching between engine and house circuits with corrosion-resistant construction and options for combining batteries when needed to ensure starting power and protect electrical systems.