Switch Toggle Spst Off-On

Blue Sea Systems Switch Toggle SPST OFF-ON (661-8204) is a panel-mount on/off toggle switch designed for use in Blue Sea Systems A-Series toggle circuit breaker panelsideal when you need switching in addition to circuit protection for common marine loads like bilge pumps, horns, wipers, and engine control circuits.

Key Features

• Mounts in Blue Sea A-Series breaker panel apertures
• Includes a mounting adapter for a standard 5/8″ circuit breaker mounting hole
• Nickel-plated brass and phenolic non-corrosive construction
• White actuator
• SPST (single-pole, single-throw) OFF-(ON) switching action
• 15A @ 32V DC or 125V AC; 10A @ 250V AC (rating)
• 1/4″ tab terminals
• On in parenthesis (On) indicates a momentary position

Product Compatibility

• Marine electrical circuits where switching is required in addition to circuit protection
• Starter/battery control applications
• Bilge pump switching circuits
• Horn switching circuits
• Wiper switching circuits
• Engine control switching circuits

Product Details

• Blue Sea Systems switch toggle: SPST OFF-ON
• Part/SKU: 661-8204
• Panel mounting: for Blue Sea A series breaker panels
• Mounting adapter: included for standard 5/8″ circuit breaker mounting hole
• Construction: nickel-plated brass and phenolic non-corrosive construction
• Actuator color: white
• Terminals: 1/4″ tab terminals
• Electrical rating: 15A @ 32V DC or 125V AC; 10A @ 250V AC
• Switch action note: On in parenthesis (On) indicates a momentary position

Parts Desk Insights

Best Use Case: Choose this switch when youre repowering or adding a dedicated panel control for an on/off marine load, and you want a clean toggle interface that fits Blue Sea Systems A-Series breaker panel mounting holes.

Common Issues: Verify your panel opening matches the 5/8″ mounting-hole standard (and that youre using the included adapter if needed). Double-check that your wire terminations are compatible with 1/4″ tab terminals before installation.

Related Products & Accessories

• Switches & Circuit Protection – Browse matching switch and circuit protection components for Blue Sea A-Series style panel builds.