Sierra MP39400 Marine Push-Pull Switch, Chrome Plated Brass, 3-Terminal, ON-OFF

The Sierra MP39400 is a marine push-pull switch built from solid brass with a chrome plated brass knob, designed for ON-OFF circuit control aboard boats where corrosion resistance and durability matter. The switch features 3 screw terminals for wiring and a 3/8 inch mounting bushing for installation into a standard panel cutout. Because it uses a push-pull actuator with 3 terminals, it can be wired to control the same circuit from two separate locations, making it useful for setups like dual helm stations or accessory circuits that need switching from more than one point. The chrome plated brass knob and solid brass body give the switch a corrosion-resistant finish suited to the marine environment, and the unit carries an IP54 ingress protection rating for resistance to dust and splashing water. Sierra manufactures this switch to meet or exceed the performance of the original equipment it replaces, and Sierra backs its products with an industry-leading warranty covering posted shop labor, haul-out, towing fees, and related incidental charges. This is a compact, screw-terminal switch intended for straightforward panel-mounted installation rather than a specific engine or drive application.

Specifications

• Brand: Sierra
• Manufacturer Part Number: MP39400
• Switch Type: Push-Pull
• Operation Mode: ON-OFF
• Terminals: 3 screw terminals
• Mounting Bushing: 3/8 inch
• Material: Chrome, Brass
• Knob Finish: Chrome plated brass
• Construction: Solid brass
• Ingress Protection Rating: IP54
• Dimensions: 5.9 x 2.5 x 1.3 inches
• Weight: 0.23 pounds
• UPC: 808282190026

Frequently Asked Questions

What is the Sierra MP39400 used for? The Sierra MP39400 is a marine push-pull switch used for ON-OFF control of an electrical circuit, and its push-pull design allows the same circuit to be controlled from two separate locations.

How many terminals does the MP39400 have? This switch has 3 screw terminals for wiring connections.

What size mounting hole does the MP39400 require? The Sierra MP39400 uses a 3/8 inch mounting bushing, so it is designed for a panel cutout sized to that bushing.

What material is the MP39400 switch made of? It is constructed of solid brass with a chrome plated brass knob, giving it a corrosion-resistant finish suited to marine environments.

Can this switch control a circuit from two locations? Yes, the push-pull design of the Sierra MP39400 lets it be wired to control the same circuit from two separate locations.

What are the dimensions of the Sierra MP39400? The switch measures 5.9 x 2.5 x 1.3 inches.

How much does the MP39400 weigh? The Sierra MP39400 weighs 0.23 pounds.

Is the MP39400 rated for water or dust resistance? This switch carries an IP54 ingress protection rating, meaning it resists dust ingress and splashing water.

Does the MP39400 meet OEM performance standards? Sierra manufactures the MP39400 to meet or exceed the performance of the original equipment part it replaces.

What operation mode does this switch use? The Sierra MP39400 operates in ON-OFF mode via its push-pull actuator.

What is the UPC for the Sierra MP39400? The UPC for the Sierra MP39400 push-pull switch is 808282190026.

Is the MP39400 covered by a warranty? Sierra backs the MP39400 with an industry-leading warranty that covers posted shop labor, haul-out, towing fees, and related incidental charges.