Complete code, power and signal
Compare 401.93000 with the removed Sensor label. Do not select another Huba 401 just for the housing: the variant code and the electrical values must match.

Pressure switch Electronic Reconditioned Huba Control 401.93000, cataloged for Roca Laura 20/20 F. It is a differential Pressure sensor with 12 V DC power supply and analog signal. The label on this unit indicates a 0 a 3 mbar range and a maximum Pressure 25 mbar.
This componente transforms the difference of Pressure between its two Ports into an electrical signal for the electronics of the equipment. Although the catalog calls it Pressure switch, its operation corresponds to an analog transmitter of the Huba 401 family.
The maximum Pressure of 25 mbar is not the measuring range: the photon unit indicates 0 a 3 mbar. It should not be confused with a mechanical open or closed contact Switch.
Transcribed data from the printed unit label. They are not measured values in an operating test.
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Both catalogs associate this Part with Roca Laura 20/20 F. Check the variant of the Boiler, the code 401.93000 and its electrical values. It should not be replaced by another Huba 401 with different code or output signal.
No models are documented for that search.
Compare the Part label installed and the cutting of your variant before you buy.
Compare 401.93000 with the removed Sensor label. Do not select another Huba 401 just for the housing: the variant code and the electrical values must match.
The technician must check the position of the two Ports, the Connector and the equipment scheme. It is not checked as a simple mechanical contact.
The installation and testing of the equipment are carried out by a qualified technician.
We repair boilers in Madrid and the surrounding areas. Installation is arranged separately from the purchase of the part.
The photographed Huba 401.93000 unit is electronic and provides an analog signal. It does not amount to a mechanical Pressure switch even if it is sold within that category.
No. The marked range is 0 a 3 mbar; 25 mbar is the maximum Pressure indicated on the label.