Blue Sea Systems 4150 WeatherDeck SPST Toggle Switch, Off-On, 15 Amp

The Blue Sea Systems 4150 is a WeatherDeck SPST toggle switch built for marine electrical panels where switching action is needed separate from circuit protection. It is manufactured for use in Blue Sea Systems WeatherDeck Waterproof Panels and is also designed for use with the A-Series Toggle Circuit Breaker Mounting Panel, making it a common choice for generator starters, bilge pumps, horns, wipers, engine controls, and other applications that call for ON-OFF switching or a different pole configuration than the circuit breaker on the panel.

Construction is nickel-plated brass and phenolic, chosen for non-corrosive performance in a marine environment. The switch uses 0.25 in (6.35 mm) quick connect tab terminals for both terminal positions, and is rated for a maximum operating voltage of 250V AC / 30V DC with a 15 Amp maximum current rating. Switching action is Off-On (SPST, 2 positions). When mounted with a WeatherDeck Toggle Switch Boot, the assembly carries an IP67 rating for temporary immersion up to 30 minutes, adding a layer of water resistance beyond a standard toggle switch.

Each switch is supplied with a mounting adapter sized for a standard 5/8 inch circuit breaker mounting hole, allowing it to install into existing panel cutouts designed for that hole size. This makes the 4150 a straightforward fit for boat builders and owners adding or replacing a dedicated switch position on a WeatherDeck panel or A-Series panel layout.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 4150
• Switch Type: Toggle Switch
• Circuit Configuration: SPST (Single Pole, Single Throw)
• Switching Action: Off-On
• Number of Positions: 2
• Maximum Current: 15 Amps
• Maximum Operating Voltage: 250V AC / 30V DC
• Terminal Size: 0.25 in (6.35 mm)
• Terminal Type: Quick Connect Tab
• Material: Nickel-plated brass and phenolic
• Water Resistance: IP67 (temporary immersion, 30 minutes) when mounted with a WeatherDeck Toggle Switch Boot
• Mounting Adapter: Included, for standard 5/8 inch circuit breaker mounting hole
• Intended Use: WeatherDeck Waterproof Panels; compatible with A-Series Toggle Circuit Breaker Mounting Panel
• Color: Black
• Weight: 0.1 pounds
• UPC: 632085041502

Fitment

Designed for use in Blue Sea Systems WeatherDeck Waterproof Panels and with the A-Series Toggle Circuit Breaker Mounting Panel.

Frequently Asked Questions

What type of switch is the Blue Sea Systems 4150? It is an SPST (single pole, single throw) toggle switch with Off-On switching action and two positions, part number 4150.

Is the 4150 waterproof? When mounted with a WeatherDeck Toggle Switch Boot, the 4150 carries an IP67 rating for temporary immersion up to 30 minutes. Without the boot, it does not carry that rating.

What panels is this switch designed to work with? The 4150 is manufactured for use in Blue Sea Systems WeatherDeck Waterproof Panels and is also designed for use with the A-Series Toggle Circuit Breaker Mounting Panel.

What is the maximum current and voltage rating? The 4150 toggle switch is rated for a maximum operating voltage of 250V AC / 30V DC with a 15 Amp maximum current rating.

What material is the switch made from? Construction is nickel-plated brass and phenolic, chosen for non-corrosive performance in marine environments.

What terminals does the 4150 use? Both terminal positions use 0.25 in (6.35 mm) quick connect tab terminals.

Does the switch come with mounting hardware? Yes, the 4150 is supplied with a mounting adapter sized for a standard 5/8 inch circuit breaker mounting hole.

Can this switch be used for something other than a circuit breaker function? Yes, the 4150 provides switching action separate from circuit protection, ideal for generator starters, bilge pumps, horns, wipers, engine controls, and similar applications where circuit protection is handled elsewhere.

What color is the 4150 toggle switch? The Blue Sea Systems 4150 toggle switch is black.

How much does the 4150 weigh? The Blue Sea Systems 4150 toggle switch weighs 0.1 pounds.

Is the 4150 a single-position or multi-position switch? It is a 2-position switch with Off-On switching action.