Control pressure switch MDR 43 - designed for oil, water, and air applications

The MDR-43 pressure switch is a versatile solution for use with oil, water, and air, featuring a two-pole design with one normally closed (NC) contact and one normally open (NO) contact, along with an aluminum die-cast pressure connection and CR membrane. As standard, the switch offers differential pressure adjustment, allowing users to fine-tune their settings. Two adjusting screws enable precise control over the switching point and hysteresis, with the shutdown value set first using the main spring and then the switch-on value adjusted using the differential setting. By selecting the desired pair of switch-on and switch-off pressures, users can determine the intersection point on the diagram, ensuring accurate and reliable pressure control.