Air pressure switch 0.4 mbar DL2-E1 De Dietrich 200000633

The air pressure switch DL2-E1, set at 0.4 mbar, is a critical safety and control device for gas burner systems. It monitors air pressure to ensure proper combustion conditions, preventing unsafe operation. This switch is a common replacement part for boiler maintenance and repair, helping to maintain reliable ignition and flame stability. Its precise low-pressure threshold makes it suitable for applications requiring sensitive air flow detection.