Product information
Technical data
Downloads
Accessories
Electronic pressure switches 521
The compact pressure switches of Type 521 are based on the thick-film technology developed by Huba Control, in which the pressure measuring cell is welded to the pressure receiver without seals. The factory-set switching points are available in normally open and normally closed functions. Different pressure and electrical connections can be implemented depending on the application.
- Compact and robust design
- Welded without seals
- Time-saving, fast customer-side cable assembly with quick cable screw connection
- Variety of connector options
Electronic pressure switches 521
Product feature
Pressure measuring range
0 ... 600 bar (Relative)
Response time
<2 ms (typ. 1 ms)
Load change
<100 Hz
Switching point high
8 ... 100 % FS
Switching point low
5 ... 97 % FS
Hysteresis
<3 % FS
Sensor weight
90 g
Field of application
Media
Process medium; Gas; Refrigerant incl. ammonia
Medium temperature
-40 ... 135 °C
Permissible overload
5 x FS; 3 x FS (max. 1500 bar)
Bursting pressure
10 x FS; 6 x FS (max. 2500 bar)
Ambient condition
Ambient temperature
-30 ... 85 °C
Storage temperature
-50 ... 100 °C
Material
Housing
Stainless steel 1.4404 (AISI 316L); Stainless steel 1.4305 (AISI 303)
Measuring element with media contact
Stainless steel
Pressure connection with media contact
Stainless steel 1.4404 (AISI 316L); Stainless steel 1.4305 (AISI 303)
Plug receptacle
Polyarylamide 50 % GF UL 94 V-0
Electrical data
Switching contact
Normally open (High-side switch (PNP)); Opener (High-side switch (PNP))
Switching load
<200 mA (High-side switch (PNP))
Current consumption
<4 mA
Insulation voltage
500 VDC (Standard)
Protection class
3
Installation guide
Installation orientation
any
Approval
EMC compatibility
CE-compliant in accordance with EN 61326-2-3 and EN 50121-3-2
Shock
100 g, 11 ms, half-sine curve, all 6 directions, free fall from 1 m onto concrete (6x) (according to IEC 68-2-27)
Permanent shock
40 g over 6 ms, 1000x all 3 directions. (according to IEC 68-2-29)
Vibration
20 g, 15 ... 2000 Hz, 15 ... 25 Hz with amplitude ± 15 mm, 1 octave / minute all 3 directions, 50 continuous loads (according to IEC 68-2-6)
UL
ANSI/UL 61010-1 gemäss E325110
Electronic pressure switches 521
Download the product-specific technical documents here in the language of your choice or open it in a new window . You can find all product and business-relevant documents on our central download page
.
EN-GB
Data Sheet 521
Data Sheet
PDF
EN-GB
FR
DE
Operating Instruction 521
Operating Instruction
PDF
Electronic pressure switches 521
Order number
Accessories
104551
Calibration certificate
105073
Heat sink
with external thread G ½ - internal thread G ¼
105074
Heat sink
with external thread G ¼ front sealing - internal thread G ¼
105631
Heat sink
with external thread G ½ front sealing - internal thread G ½ ¼
106975
Angled cable socket
M12x1; 3-pole
114570
Straight cable socket
M12x1; 3-pole
114604
Angled cable socket
for M12x1 connector; With cable; 200 cm; 3-pole
114605
Straight cable socket
for M12x1 connector with cable; 200 cm; 3-pole
117312
Socket
for cable quick connector
118716
Mounting bracket
With screw