The float switch for water pump: a small device with a great impact

A faulty float switch for water pump can silently cause significant damage. Flooded basements, industrial system shutdowns, and even fire hazards: these are all potential consequences of a problem with this simple yet crucial device.

In the 1970s, Mac3 founder Mirian Ronchi was deeply aware of these issues. He identified a critical gap in the market: existing products lacked reliability, causing numerous failures and service interruptions.

Aiming to address these challenges, Ronchi designed the float switch that gave the company its name: the Mac3.

A rigorous quality control process for every single float switch for water pump


Dr. Ronchi’s commitment to quality and reliability has become Mac3’s guiding principle. Today, the company carries on this philosophy through a rigorous quality control process that follows each product from raw material selection to individual final testing.

Our process involves several key stages, ensuring superior performance and extended lifespan for each float switch for water pumps.

We start by selecting high-quality raw materials: durable plastics, robust cables, and reliable microswitches to ensure the functionality of the float switches.
During assembly, we verify that all components are perfectly integrated, subjecting each production step to strict controls.

Finally, we individually test each float switch and check its mechanical and electrical operation. We examine key parameters such as the mechanical switching angle and electrical performance, as well as aesthetic details: every product must be flawless in all aspects.

Testing every Mac3 product, from float switches for water pumps to pump inverters, means our partners can be confident in the reliable performance of our solutions, which can help reduce after-sales service costs and increase end-user loyalty.

Why individually test each float switch?

This process ensures long-lasting operation of each device with tangible benefits for our partners:

  • Increased profits: reliable performance reduces service costs and builds customer loyalty, contributing to increased revenue.
  • Reduced returns and costs associated with after-sales service.and costs associated with after-sales service.
  • Pump protection: a perfectly functioning float switch prevents the pump from running dry, avoiding damage and extending pumping system’s lifespan.
  • Maximum reliability: each float switch for water pumps is designed to work flawlessly, even in challenging conditions

Individually testing each product also means we can identify and resolve any issues before the product leaves the factory, preventing failures and minimizing the risk of malfunctions for end-users.
Keeping our entire production process in-house gives us complete control over every step, allowing us to continuously optimize and improve our operations, to quickly adapt to the changing market needs and to promptly respond to our customers’ requests.

Electrical testing for each float switch for water pump

Fewer unexpected issues, more peace of mind

Since 1983, Mac3 manufactures reliable float switches for water pumps and aims to simplify the work of companies and operators in the water management sector.

Request additional information

Our customers have always relied on our commitment to quality and innovation. Would you like more information about Mac3 solutions or explore our wide range of products? Feel free to send us a message; our team is ready to assist you.