XP110 pressure switch 0,5 - 1,5 bar 1/4"

The Ma-Ter XP 110 pressure switch. One of the most used pressure switch models. Mainly used in domestic espresso machines, but you will also find them in commercial espresso machines. Used on Bezzera, Astoria, Cimbali, ECM and Profitec espresso machines.

The thread is a ¼” BSP-G. The pressure reach is 0,5-1.5bar. It is pre-set at 1,0 bar. The switch is rated for 15A at 125/250V.

This switch is adjustable, but it is not intended for constant pressure adjustments.

The principle of a spring actuated pressure switch is that when the boiler pressure raises, a membrane goes up and when it reaches the set pressure the contacts will disconnect. This results that there goes no power to the heating element anymore. When the pressure in the boiler lowers the contacts will connect again and the heating procedure starts over again.