Attwood 4202-7 Automatic Bilge Pump Float Switch, 12/24-Volt, 36-Inch Wire

The Attwood 4202-7 is an automatic float switch that converts a manual bilge pump into one that operates fully automatically. Its compact, low-profile design mounts on any surface from horizontal up to a 24-degree angle, making it adaptable to a range of bilge configurations. Inside, a reliable mechanical switch actuates the pump motor once water reaches a 2-inch level, so the pump only runs when it is actually needed. The switch is rated for both 12-volt and 24-volt DC systems and is CE rated, with a maximum amp draw of 12 amps at 12 volts or 6 amps at 24 volts. A 36-inch wire connection is included for wiring into the boat's bilge pump circuit.

Construction is plastic, and the switch mechanism is sealed to resist moisture, fume-ignition, and electrical shock, an important safety feature in an enclosed bilge environment. The unit contains no mercury, avoiding a substance classified as a health hazard and Persistent Toxic Substance in over 26 states. It measures 4 1/4 inches long by 3 7/8 inches wide by 1 3/8 inches high. Non-automatic bilge pumps drawing 12 amps or less can be converted to automatic operation using this float switch, making it a straightforward upgrade for boats that currently rely on manually triggered bilge pumps.

Specifications

• Brand: Attwood
• Manufacturer Part Number: 4202-7
• Product Category: Bilge Pump Switches
• Operating Voltage: 12-volt and 24-volt DC
• Current Rating: 12 amps at 12-volt DC, 6 amps at 24-volt DC
• Switch Type: Float switch, mechanical
• Actuation Level: 2 inches of water
• Mounting Angle: Horizontal up to 24 degrees
• Mounting Type: Surface mount
• Wire Length: 36 inches
• Certification: CE rated
• Material: Plastic
• Mercury Content: None
• Dimensions: 4 1/4 inches L x 3 7/8 inches W x 1 3/8 inches H
• Weight: 0.4917 pounds
• UPC: 022697420275

Fitment

Compatible with 12-volt and 24-volt bilge pumps drawing 12 amps or less, converting them from manual to fully automatic operation.

Frequently Asked Questions

What does the Attwood 4202-7 float switch do? The Attwood 4202-7 converts a manual bilge pump into one that runs fully automatically by triggering the pump whenever water in the bilge reaches a 2-inch level.

What voltage does the 4202-7 float switch work with? It is rated for both 12-volt and 24-volt DC systems and carries CE certification.

How much current can the 4202-7 handle? Maximum amp draw is 12 amps at 12-volt DC or 6 amps at 24-volt DC, so it works with non-automatic bilge pumps drawing 12 amps or less.

How is the Attwood float switch mounted? It has a compact, low-profile design that mounts on any surface from horizontal up to a 24-degree angle.

What are the dimensions of the 4202-7? The switch measures 4 1/4 inches long by 3 7/8 inches wide by 1 3/8 inches high.

How long is the wire on the Attwood 4202-7? It comes with a 36-inch wire connection for wiring into the bilge pump circuit.

At what water level does the float switch activate the pump? A reliable mechanical switch actuates the pump motor once water reaches a 2-inch level in the bilge.

Does the Attwood 4202-7 contain mercury? No, the 4202-7 float switch contains no mercury, a substance listed as a health hazard and Persistent Toxic Substance in over 26 states.

What material is the 4202-7 float switch made of? The switch housing is made of plastic, with a sealed switch mechanism that resists moisture, fume-ignition, and electrical shock.

How much does the Attwood 4202-7 weigh? The 4202-7 float switch weighs 0.4917 pounds.

Can the 4202-7 be used to upgrade an existing manual bilge pump? Yes, non-automatic pumps drawing 12 amps or less can easily be converted to automatic operation using the Attwood 4202-7 float switch.