The MAC3 float switch is a highly reliable, Italian-designed dual-chamber electromechanical level controller. Built for automatic level monitoring and pump control, it offers outstanding performance across a wide range of applications — from clean water systems to moderately contaminated or greywater environments. Its snag-free, rounded body and robust sealing ensure durability even in demanding fluid conditions.



Double liquid-proof chamber for enhanced leak protection
Dual wiring function: filling or emptying control
IP68-rated polypropylene body for clear and turbulent water
Up to 16 A/250 V or 20 A/250 V (model dependent)
Operating: 0–50 °C; Storage: –10–60 °C
Up to 1 bar
+20° / –45° typical (varies per model)
PVC, Neoprene (H07RN-F), H07BN4-F
Available in 2, 3, 5, 10, 15, and 20 meters
Non-toxic polypropylene (PP)
ACS for potable water; IECEx/ATEX versions available
Automatic control of pumps and valves
Level monitoring in tanks, cisterns, wells
Greywater and drainage systems
Dry-run protection and overflow alarms
Domestic, commercial, and light industrial applications
Potable water
Greywater and sewage (light to moderate solids)
Turbulent or high-agitation water conditions
Simple wiring configuration for fill or drain operations
Resistant to sediment buildup and fouling
High switching load for industrial applications
Long-life design suited for submerged conditions
Counterweights for defined float position
Piggyback plugs for simplified pump integration
Mounting brackets for fixed installations
From forging and casting to machining, assembly, and testing — every step is managed under one roof to ensure consistent quality, faster lead times, and zero compromise.
Get in touch with our team for additional information on product pricing, technical data, project support and more.