Home / Boating & Marine / Pumps & Plumbing / Bilge Pumps / Rule 40A Rule-A-Matic Plus Float Switch – Covered Bilge Pump Switch for 20A Systems with Built-In Test Feature
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Shop Rule 40A float switch with debris-resistant cover and 20A capacity. Ideal for boaters needing automatic bilge pump control and easy testing.

Rule 40A Rule-A-Matic Plus Float Switch – Covered Bilge Pump Switch for 20A Systems with Built-In Test Feature

155 in stock

$64.89

155 in stock

Product Highlights

20A pump compatibility | Impact-resistant cover | Built-in test switch | Mercury-free design | 2in activation level | 2-year warranty
Integrated cover protects switch from debris – helps prevent float jamming in dirty bilges | Supports pumps up to 20 amps – suitable for larger bilge systems | Built-in test feature – confirms operation without lifting float | Mercury-free switch design – environmentally responsible operation | 14-gauge blocked wiring – resists corrosion and water intrusion
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UPC: 42237095633
SKU: 42237095633 Category: Brand:

Description

The Rule 40A Rule-A-Matic Plus is a covered float switch designed for automatic bilge pump control on 12V, 24V, and 32V DC systems. Its integrated protective cover shields the float mechanism from debris and jamming, while the switch supports pumps drawing up to 20 amps. The unit activates pumps at approximately 2 inches of water and shuts them off near 3/4 inch for efficient bilge management. || Built for recreational and commercial marine applications, the 40A helps reduce manual pump operation and supports high-water alarm systems. The impact-resistant housing and 14-gauge blocked wiring are engineered to resist water intrusion and corrosion in demanding marine environments. || A built-in test feature allows quick verification of pump operation without lifting the float. The compact housing fits common bilge compartments, and the removable mounting design simplifies installation and maintenance. Backed by a 2-year warranty, the Rule 40A remains a trusted choice for dependable automatic bilge protection.

Additional information

Brand

Rule

Model

40A

MPN

40A

Product Type

Float Switch

Material

Engineered Polymer

Finish Color

White gray

Dimensions

5.25 x 2.5 x 2.88 in

Weight (lb)

Not Published

Load Capacity

20A Max

Drawer Count

Not Published

Drawer Type

Not Published

Lock Type

Not Published

Mount Type

Surface Mount

Installation

Bilge Mounted

Compatibility

12/24/32V DC

Use Case

Bilge Control

Warranty

2 years

Country of Origin

Not Published

Series

Rule-A-Matic Plus

UPC

42237095633

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