Attwood Marine Automatic Bilge Pump Float Switch, 12V/24V, With Cover

Overview

The Attwood Marine 4201-7 is an automatic float switch with cover for 12V and 24V bilge pump systems. It adds automatic on and off control to a non-automatic electric bilge pump and is rated for loads up to 12 amps at 12V DC or 6 amps at 24V DC. The switch trips the pump at a 2 inch water level, which gives the bilge a prompt response without needing manual activation.

The covered low-profile body suits tight bilge spaces where sloshing water and loose debris can cause trouble for exposed switches. It mounts on surfaces from horizontal up to 24 degrees, uses 36 inch wire leads for installation, and includes a test knob so pump operation can be checked at the switch. The sealed switch body is mercury-free and CE rated.

Key features

• Converts a manual bilge pump setup to automatic operation on 12V or 24V DC systems
• Handles pump loads up to 12 amps at 12V DC or 6 amps at 24V DC
• Mechanical float switch turns the pump on at 2 inches of water
• Covered housing helps cut down cycling from bilge slosh and keeps debris away from the float
• Low-profile body mounts on surfaces from horizontal up to 24 degrees
• 36 inch wire leads give extra reach for routing in the bilge
• Built-in test knob lets you check pump operation without lifting the float by hand
• Sealed switch body resists moisture, fume ignition, and electrical shock

Installation and setup

This switch can be mounted on its own in the bilge or fitted directly onto the rear slots of an Attwood V-Series pump bracket. That gives a cleaner install when you are pairing it with a compatible pump bracket and helps in compartments where space is limited.

For retrofit work, the current rating is the first thing to confirm before purchase. The switch needs to be matched to a pump that stays within the stated 12V or 24V load limits, and the mounting surface needs to let the float move freely without hoses, wiring, or hull structure getting in the way.

Compatibility and fit

This model is a good match for boats using a separate bilge pump and switch arrangement rather than an integrated automatic pump. It fits many small to mid-size bilge compartments where a covered switch is preferred to help control nuisance cycling and keep debris from interfering with float movement.

It also makes sense when you want a simple mechanical switch with a local test point at the bilge. That can be useful on fishing boats, runabouts, small cruisers, and sailboats where routine pump checks are part of normal maintenance.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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