Blue Sea Systems 4161 Push Button Switch, Blue LED, OFF-(ON) Momentary, 10A 12V DC

The Blue Sea Systems 4161 is a waterproof push button switch built for marine 12V DC circuits up to 10A. It operates OFF-(ON), meaning the circuit is closed only while the button is held (momentary contact), and features a blue LED ring that illuminates to indicate switch status. The switch body is constructed of 316 stainless steel for corrosion resistance and a clean panel appearance in wet, salt-air environments.

Sealing is rated IP67, achieved with an O-ring panel gasket and a molded rear cover, protecting the switch from spray and immersion at the panel face. The 4161 is reverse polarity protected and terminates with 5 x 0.110 inch quick connect tabs, which are included in the package, making wiring straightforward without soldering. It mounts through a 3/4 inch (19mm) diameter panel hole and fits panels from.04 inch to.31 inch (1-8mm) thick, covering most helm and accessory panels. Rated switching life is 40,000 cycles, and it is built to operate across a temperature range of -10C to 70C (14F to 158F), suitable for exterior helm stations and below-deck panels alike.

This switch is commonly used for lighting, bilge and accessory controls, and other 12V DC circuits requiring a momentary push button with visual LED confirmation.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 4161
• Switch Action: OFF-(ON) momentary
• LED Color: Blue
• Max Operating Amperage: 10A @ 12V DC
• Nominal Voltage: 12V DC
• Max LED Operating Current: 20mA
• Switching Cycles: 40,000
• Operating Temperature Range: -10C to 70C (14F to 158F)
• Termination: 5 x 0.110 inch quick connect tabs (included)
• Panel Thickness:.04 inch to.31 inch (1-8mm)
• Mounting Hole Diameter: 3/4 inch (19mm)
• Sealing Rating: IP67
• Material: 316 Stainless Steel
• Item Dimensions: 4.44 x 2.69 x 1.25 inches
• Weight: 0.2 pounds
• Reverse Polarity Protection: Yes
• UPC: 632085041618

Frequently Asked Questions

What does OFF-(ON) mean on the Blue Sea Systems 4161? OFF-(ON) is a momentary action: the 4161 closes its circuit only while the button is pressed and returns to OFF when released.

What amperage is the 4161 push button switch rated for? The 4161 is rated 10A at 12V DC, suitable for lighting, bilge, and other 12V DC accessory circuits within that load.

Is the Blue Sea Systems 4161 waterproof? Yes, it carries an IP67 sealing rating at the panel face, achieved with an O-ring panel gasket and a molded rear cover.

What color is the LED on this switch? The 4161 has a blue LED ring that illuminates to show switch status.

What size mounting hole does the 4161 require? It mounts through a 3/4 inch (19mm) diameter panel hole.

What panel thicknesses will the 4161 fit? The switch fits panels from.04 inch to.31 inch (1-8mm) thick.

How is the 4161 wired? Termination is via 5 x 0.110 inch quick connect tabs, which are included with the switch, so no soldering is required for installation.

What material is the switch body made of? The 4161 is made of 316 stainless steel for corrosion resistance in marine environments.

How many switching cycles is the 4161 rated for? It is rated for 40,000 switching cycles.

Is the 4161 protected against reverse polarity wiring? Yes, the Blue Sea Systems 4161 includes reverse polarity protection.

What operating temperature range does the 4161 handle? It operates across -10C to 70C (14F to 158F).

How much does the 4161 switch weigh? The Blue Sea Systems 4161 weighs 0.2 pounds.