The MAC3 AGMA W is a vertical level switch for dirty water, with a 5 metre cable. It works with two loose floats that move up and down along a vertical guide. This means it needs very little room to switch, unlike a standard tilting float switch that has to swing freely. That makes the AGMA W suitable for small sumps, cellars, crawl spaces and lift pits.
How the switching point works:
Because the floats sit loosely around the guide, the AGMA W is less sensitive to dirt, sludge and fibres than float switches with a closed housing. It is still advisable to check and rinse it regularly so the floats keep moving freely.
The float switch is supplied with a 5 metre cable. As an option, we supply it with a piggyback plug: you plug the pump into the float switch plug, and the float switch controls the pump directly without extra wiring. A mounting bracket is also available to fix the float switch easily to the sump wall or the discharge pipe.