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HUBA CONTROL
Electronic Pressure Switch 521 0 ... 2.5 - 600 bar

Electronic Pressure Switch 521 0 ... 2.5 - 600 bar

Product catalog summary

Overview: The Huba Control Type 521 is a compact and rugged pressure switch utilizing thick film technology with a fully welded pressure measuring cell. It offers factory-set switching points with both normally closed (N/C) and normally open (N/O) functions, and a variety of electrical and pressure connections to suit different applications.

Specifications:

Pressure Range: 0 to 2.5 – 600 bar
Medium: Suitable for liquids, gases, and refrigerants including ammonia
Temperature Range: Medium: -40 to +135 ºC, Ambient: -30 to +85 ºC, Storage: -50 to +100 ºC
Materials: Stainless steel for pressure connection and sensor
Electrical Output: Semiconductor (open collector) with High-Side Switch (PNP)
Power Supply: 7 to 33 VDC
Response Time: Less than 2 ms

Pressure Connections: Various options including inside and outside threads with different sealing methods, suitable for a range of pressure levels.

Electrical Connections: Options include swift connectors with or without cables and M12x1 connectors, all with IP 67 protection class.

Performance and Testing:

Overload and Rupture Pressure: Varies based on pressure level, with maximums of 1500 bar and 2500 bar respectively
Accuracy: Switching points accuracy of ±0.5% full scale
Long-term Stability: ±0.25% full scale
Compliance: CE conformity, shock and vibration tested according to IEC standards

Order Code and Options: Detailed tables for selecting pressure range, version, switching contact type, electrical and pressure connections, and materials. Options for oxygen applications and various pressure units (bar, psi, MPa) are available.

Accessories: Includes swift connectors, wire boxes, mounting brackets, and heat sinks, with specific order numbers provided.

Contact Information: Huba Control has branches in Switzerland, Netherlands, France, UK, and Germany, with contact details provided for each location.

Catalog excerpts

Electronic Pressure Switch 521 0 ... 2.5 - 600 bar-1

Pressure switch Relative pressure switch Type 521 The compact type 521 pressure switch is based upon the Huba Control developed thick film technology where the pressure measuring cell is fully welded. Switching points set in factory are available both N/C and N/O function. Various electrical and pressure connections are available to suit given applications. + Compact, rugged construction + Welded without sealing parts + Saving time by quick cable mounting by the customer with swift connector + Large selection of connections available Huba Control Type 521 | Technical data subject to change | Edition 09/2020

Open the catalog to page 1

Electronic Pressure Switch 521 0 ... 2.5 - 600 bar-2

Technical overview Pressure range Relative Operating conditions Medium Temperature Tolerable overload Rupture pressure Liquids, gases and refrigerants (incl. ammonia) Medium -40 ... +135 ºC Ambient -30 ... +85 ºC Storage -50 ... +100 ºC < 6 bar 5 x FS > 6 bar 3 x FS (max. 1500 bar) < 6 bar 10 x FS > 6 bar 6 x FS (max. 2500 bar) Materials Pressure Connection Plug accommodation Pressure connection Materials in contact with medium Sensor Stainless steel 1.4404 / AISI 316L (inside thread Schrader 1.4305 / AISI 303 only) Polyarylamide 50% GF UL 94 V-0 Stainless steel 1.4404 / AISI 316L (inside thread...

Open the catalog to page 2

Electronic Pressure Switch 521 0 ... 2.5 - 600 bar-3

Order code selection table in bar 0 ... 2.5 bar 9 1 4 0 ... 4 bar 9 1 5 0 ... 6 bar 9 1 7 0 ... 10 bar 9 3 0 0 ... 16 bar 9 3 1 0 ... 25 bar 9 3 2 1) Pressure range 0 ... 40 bar 9 3 3 0 ... 60 bar 9 4 0 0 ... 100 bar 9 4 1 0 ... 160 bar 9 4 2 0 ... 250 bar 9 4 3 0 ... 400 bar 9 5 4 0 ... 600 bar 9 5 5 standard S 0 Version for oxygen applications S 1 Contact N/O High-Side-Switch PNP 1 Switching contact Contact N/C High-Side-Switch PNP 2 Swift connector without cable 0 Electrical connection Connector M12x1 2) 3 Swift connector with cable 1.5 m L 7 /16 -20 UNF sealing cone with Schrader 0 0 0 N...

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Electronic Pressure Switch 521 0 ... 2.5 - 600 bar-4

Order code selection table in MPa 0 ...0.25 MPa 9 G 4 0 ... 0.4 MPa 9 G 5 0 ... 0.6 MPa 9 G 7 0 ... 1 MPa 9 H 0 0 ... 1.6 MPa 9 H 1 0 ... 2.5 MPa 9 H 2 1) Pressure range 0 ... 4 MPa 9 H 3 0 ... 6 MPa 9 K 0 0 ... 10 MPa 9 K 1 0 ... 16 MPa 9 K 2 0 ... 25 MPa 9 K 3 0 ... 40 MPa 9 L 4 0 ... 60 MPa 9 L 5 standard S 0 Version for oxygen applications S 1 Contact N/O High-Side-Switch PNP 1 Switching contact Contact N/C High-Side-Switch PNP 2 Swift connector without cable 0 Electrical connection Connector M12x1 2) 3 Swift connector with cable 1.5 m L 7 /16 -20 UNF sealing cone with Schrader 0 0 0 N 7...

Open the catalog to page 4

Electronic Pressure Switch 521 0 ... 2.5 - 600 bar-5

Dimensions in mm / Electrical connections Swift connector Inside thread 7/16 - 20 UNF Schrader N/C contact: When pressure is applied (p0  pmax) the switch will disconnect the applied load as soon as the upper switching point is reached. As the pressure falls (pmax  p0) the switch will connect the load as soon as the lower switching point is reached. N/O contact: When pressure is applied (p0  pmax) the switch will connect the applied load as soon as the upper switching point is reached. With a fall in pressure (pmax  p0) the switch will disconnect the load as soon as the lower switching point...

Open the catalog to page 5

Electronic Pressure Switch 521 0 ... 2.5 - 600 bar-6

Huba Control AG Headquarters Schweiz Industriestrasse 17 CH-5436 Würenlos Telefon Niederlassung Deutschland Vestiging Nederland Succursale France Branch Office United Kingdom Unit 13 Berkshire House, County Park Technopôle Forbach-Sud Business Centre, Shrivenham Road

Open the catalog to page 6

Electronic Pressure Switch 521 0 ... 2.5 - 600 bar

Electronic Pressure Switch 521 0 ... 2.5 - 600 bar

Catalog excerpts

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