The IFM PK5523 is an electronic pressure switch designed for simple and intuitive pressure threshold adjustment. It measures relative pressure from 0 to 25 bar and provides a PNP normally open switching output. The switching point is adjusted mechanically using an integrated setting ring. A fixed 0.5 bar hysteresis provides predictable switching behaviour. Its stainless-steel process connection, IP67/IP69K protection, and 25 bar operating range make it suitable for hydraulic, pneumatic, cooling, and pressure-monitoring systems.
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The PK5523 is designed for applications where quick mechanical pressure adjustment is preferred. Its setting ring allows the switching threshold to be configured directly at the sensor. The available setting range is 0.75…25 bar within the 0…25 bar measuring range. The fixed hysteresis is 0.5 bar. This makes setup straightforward for machine operators and maintenance personnel.
The PK5523 provides one PNP normally open switching output. The output supports up to 100 mA continuous current and a 100 Hz switching frequency. Short-circuit and overload protection improve electrical reliability. Reverse-polarity protection is also provided. These characteristics make the switch suitable for direct connection to automation inputs.
The pressure switch uses a cylindrical Ø27 mm housing with a length of 71.6 mm. Its process connection is a G1/4 external thread with an additional M5 internal thread. Wetted parts are stainless steel 316L/1.4404 and FKM. IP67 protection supports demanding industrial environments. The unit is designed for 50 million minimum pressure cycles.
0…25 bar measuring range
Relative pressure measurement
PNP switching output
Normally open output
100 mA continuous current
100 Hz switching frequency
0.75…25 bar setting range
0.5 bar hysteresis
Mechanical setting ring
Switching status LED
G1/4 external thread
M5 internal thread
Stainless steel 316L
IP67 protection
50 million pressure cycles
Hydraulic systems
Pneumatic systems
Cooling technology
Pump monitoring
Pressure alarms
Machine automation
Industrial equipment
Pressure-control systems
The mechanical setting ring allows the pressure threshold to be adjusted without software. This is useful in machines where operators need quick access to the switching setting. The switching status LED provides immediate visual confirmation. Mechanical locking helps prevent unintended adjustment. This reduces commissioning effort and simplifies maintenance.
Install the PK5523 using the G1/4 external process connection. The recommended tightening torque is 25 Nm. Ensure the pressure remains within the 25 bar operating range during normal operation. Inspect the setting ring and process connection during scheduled maintenance. Check the M12 connector for secure electrical contact.
| Specification | Details |
|---|---|
| Model | PK5523 |
| Product type | Electronic pressure switch |
| Order code | PK-025-SFG14-PSPKG/US/W |
| Measuring principle | Electronic pressure measurement |
| Measuring range | 0…25 bar |
| Pressure type | Relative |
| Media | Liquids and gases |
| Set-point range | 0.75…25 bar |
| Hysteresis | 0.5 bar |
| Switch-point adjustment | Setting ring |
| Output quantity | 1 digital |
| Electrical design | PNP |
| Output function | Normally open |
| Continuous output current | 100 mA |
| Switching frequency | 100 Hz |
| Voltage drop | 2.5 V |
| Short-circuit protection | Yes, pulsed |
| Overload protection | Yes |
| Reverse polarity protection | Yes |
| Supply voltage | 9.6…32 V DC |
| Ambient temperature | -25…80 °C |
| Storage temperature | -40…100 °C |
| Protection rating | IP67 |
| Pressure rating | 25 bar |
| Minimum pressure cycles | 50 million |
| Housing | Cylindrical |
| Housing diameter | 27 mm |
| Housing length | 71.6 mm |
| Process connection | G1/4 external thread |
| Additional connection | M5 internal thread |
| Wetted material | Stainless steel 316L/1.4404, FKM |
| Housing material | PBT, PC, FKM, stainless steel 316L |
| Electrical connection | M12 A-coded |
| Weight | 92.5 g |
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