Blue Sea Systems 4153 WeatherDeck Toggle Switch, SPDT (On)-Off-On, Nickel-Plated Brass

The Blue Sea Systems 4153 is a WeatherDeck toggle switch built for marine electrical panels where reliable, corrosion-resistant switching matters. It is a single-pole, double-throw (SPDT) switch with a (On)-Off-On action, meaning both toggle positions are momentary (spring-return to center) while the center position holds Off. This action is commonly used for circuits such as windshield wipers and bilge pumps, where a momentary command signal is needed in one or both directions.

Construction is nickel-plated brass with a phenolic (non-corrosive) housing, giving the switch long-term resistance to the saltwater and moisture exposure typical of a boat helm or console. The switch terminates in three quick-connect tabs for straightforward wiring into an existing harness. It is specially manufactured by Carling Technologies for use in Blue Sea Systems WeatherDeck panels. When installed together with a WeatherDeck Toggle Switch Boot, the assembly is rated IP67 for temporary immersion up to 30 minutes, adding a layer of protection against splash and brief submersion at the panel face.

This switch is rated for 15A at 125V AC, 15A at 12V DC, and 10A at 250V DC, covering the electrical demands of most 12-volt marine circuits and accessories. It mounts to a standard panel cutout as part of a WeatherDeck panel installation.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 4153
• Circuit Type: SPDT (On)-Off-On
• Material: Nickel-plated brass and phenolic
• Contact Material: Brass
• Terminal Type: 3 x Quick Connect Tab
• Mounting Type: Panel Mount
• Maximum Current Rating: 15 Amps at 125 Volts AC, 15 Amps at 12 Volts DC, 10 Amps at 250 Volts DC
• Ingress Protection: IP67 (temporary immersion, 30 minutes) when mounted with a WeatherDeck Toggle Switch Boot
• Common Applications: Windshield wipers, bilge pumps
• Weight: 0.1 pounds
• UPC: 632085041533

Frequently Asked Questions

What does the (On)-Off-On action mean on the Blue Sea Systems 4153 switch? Both toggle positions on the 4153 are momentary, springing back to the center Off position when released, so the switch only sends power while it is being held in either direction.

Is the Blue Sea Systems 4153 waterproof? On its own the 4153 is built with a non-corrosive nickel-plated brass and phenolic housing, but it reaches an IP67 rating for temporary 30-minute immersion only when installed together with a WeatherDeck Toggle Switch Boot.

What is the current rating of the 4153 toggle switch? It is rated for 15 Amps at 125 Volts AC, 15 Amps at 12 Volts DC, or 10 Amps at 250 Volts DC.

What wiring terminals does the Blue Sea Systems 4153 use? The 4153 has three quick-connect tab terminals for attaching wiring harness connectors.

What is the 4153 switch made of? Nickel-plated brass and phenolic, a non-corrosive material combination chosen for marine electrical panels exposed to moisture.

What circuit type is the Blue Sea Systems 4153? It is a single-pole, double-throw (SPDT) switch, meaning it can route power to two different circuits from one input depending on toggle position.

What is the 4153 switch commonly used for? This SPDT (On)-Off-On switch is commonly used for circuits like windshield wipers and bilge pumps.

Does the 4153 switch require a boot for panel installation? A WeatherDeck Toggle Switch Boot is not required for basic operation, but adding one is what gives the 4153 assembly its IP67 rating for temporary immersion.

Who manufactures the internal switch mechanism of the Blue Sea 4153? The 4153 is specially manufactured by Carling Technologies for use in Blue Sea Systems WeatherDeck panels.

How much does the Blue Sea Systems 4153 weigh? The 4153 toggle switch weighs 0.1 pounds.