Description
Attwood Automatic Float Switch - 12/24V | Boat Supply Store
Eliminate manual bilge pump operation with the Attwood Automatic Float Switch, designed for seamless integration into 12V and 24V systems. This switch reliably activates your bilge pump when water reaches a 2-inch level, providing critical protection against water ingress for vessels operating in coastal Texas waters. Its sealed, mercury-free mechanism and integral cover ensure longevity by preventing debris interference and dampening sloshing, a crucial factor for maintaining operational readiness.
Key Features
- Converts bilge pumps to fully automatic operation
- Activates pump at 2" water level for proactive bilge management
- Sealed, mercury-free switch mechanism resists moisture and fume ignition
- Integral cover dampens sloshing and prevents debris interference
- Compact, low-profile design mounts discreetly in the bilge
- Mounts on surfaces from horizontal up to a 24° angle
- CE Rated for assured marine safety compliance
- Convenient test knob for simple pump operation verification
Specifications
| Product Specifications | |
|---|---|
| Voltage Compatibility | 12V & 24V |
| Maximum Amp Draw (12V) | 12A |
| Maximum Amp Draw (24V) | 6A |
| Activation Water Level | 2" |
| Wire Length | 36" |
| Mounting Angle | Horizontal up to 24° |
| Switch Type | Sealed, Mercury-Free Mechanical |
| Certifications | CE Rated |
Who This Is For
Boat owners and marine technicians seeking to automate existing manual bilge pump systems for continuous water removal and preventative protection against water damage. This solution is ideal for those prioritizing reliable, safe, and easily installable bilge water management.
How It Compares
| Feature | Attwood Automatic Float Switch - 12/24V | Rule |
|---|---|---|
| Voltage Compatibility | 12V & 24V | 12/24/32V DC |
| Max Amp Draw (12V) | 12A | 20A |
| Activation Water Level | 2" | 2-1/8" |
| Wire Length | 36" | — |
| Integral Cover (Slosh/Debris) | Yes | No |
| Mercury-Free | Yes | Yes |
| Mounting Angle | Horizontal up to 24° | Horizontal to 45° incline |
Common Concerns Answered
Will the 36-inch wire be long enough for my installation?
The 36-inch wire lead is sufficient for many standard bilge installations. For larger vessels requiring extended reach, consider using appropriate marine-grade extension wiring and connectors to ensure a secure and safe connection.
Is the 12A maximum amp draw suitable for my high-capacity bilge pump?
This float switch is rated for a maximum of 12A at 12V, which is adequate for most standard bilge pumps. If your pump's continuous draw exceeds this rating, a higher amperage-rated switch or a relay system will be necessary.
How does the integral cover improve performance and longevity?
The integral cover significantly enhances reliability by preventing debris from interfering with the float mechanism and by dampening the effects of bilge water sloshing. This reduces unnecessary pump cycling and protects the switch from physical obstructions.
Frequently Asked Questions
How does the Attwood Automatic Float Switch convert a bilge pump to automatic operation?
The switch is wired in series with the bilge pump's power supply. When the water level rises to the activation point, the float mechanism closes the electrical circuit, powering the bilge pump to discharge the water.
What is the maximum amp draw for the Attwood Automatic Float Switch?
The maximum amp draw is 12 amps for 12V systems and 6 amps for 24V systems.
At what water level does the Attwood Automatic Float Switch activate the pump?
The switch is designed to activate the bilge pump when the water level reaches approximately 2 inches.
Can the Attwood Automatic Float Switch be mounted on an angled surface?
Yes, this float switch can be mounted on surfaces angled from horizontal up to 24 degrees, offering installation flexibility in various bilge configurations.
How is the pump operation tested with this float switch?
A convenient test knob is integrated into the switch design, allowing for manual activation of the pump to verify its operational status without needing to manually raise the float.
