Unique Engineering

The IFM PK6521 is a rugged, compact, and high-performance electronic pressure switch designed for precise monitoring and control of gauge pressure up to 250 bar (3625 psi). This device features two programmable solid-state PNP switching outputs, enabling flexible configuration for controlling pressure-related processes or providing pressure alerts.

It is built with a stainless steel thin-film sensing element, offering excellent overload resistance, high long-term stability, and resistance to pressure spikes. Its compact G 1/4 process connection, M12 connector, and IP67-rated housing ensure it is well-suited for use in industrial automation, hydraulic systems, and mobile machinery applications.

• Easy integration into PLC systems with standard PNP switching signals

• Robust sensor element ensures long life, even in demanding environments

• Compact design ideal for tight installations and mobile equipment

• Reliable operation under high pressure and rapid pressure fluctuations

• Maintenance-free and sealed for long-term durability

• Hydraulic power packs and cylinders

• Pneumatic control systems

• Industrial automation and process equipment

• Mobile vehicles and off-highway machinery

• Pressure safety/shutdown monitoring

Additional Information:

• Item Code: IFM-PK6521
• Delivery Time: Ready Stock

The IFM PK5520 is a compact, robust electronic pressure switch engineered for industrial and mobile machinery applications requiring reliable high-pressure monitoring up to 400 bar (5800 psi). With a rugged stainless-steel sensing cell and solid-state electronics, it ensures dependable switching performance even in harsh and dynamic operating conditions.

It features one programmable PNP switching output, short-circuit and overload protected, and is designed for direct mounting via G 1/4" process connection. Its mechanically adjustable set point ring allows simple on-site configuration without external tools or software.

• Durable and compact for confined or rugged industrial spaces

• Mechanical switch-point adjustment — quick and easy setup

• Short-circuit, reverse polarity, and overload protected

• Ideal for mobile hydraulics, industrial equipment, and safety applications

• High mechanical life (>50 million cycles) ensures longevity

• Hydraulic presses and power units

• Pump and compressor monitoring

• Pneumatic and fluid systems

• Pressure-based interlocks and alarms in heavy machinery

• Mobile construction or agricultural equipment

Additional Information:

• Item Code: IFM-PK5520
• Delivery Time: Ready Stock

The IFM PK5522 is a compact, high-performance electronic pressure switch engineered for industrial and mobile applications requiring precise and durable pressure monitoring up to 100 bar (1450 psi). It features a mechanically adjustable setpoint ring for simple, tool-free configuration of the switching threshold and incorporates a rugged stainless steel thin-film sensing element for long-term stability and resistance to overload and harsh environments.

With a solid-state PNP switching output, this pressure switch provides fast, reliable pressure control in demanding systems. Its IP67 enclosure rating, shock resistance, and compact G 1/4 connection make it ideal for space-constrained installations in hydraulics, pneumatics, and OEM applications.

• Enclosure Protection: IP67 – dust-tight and protected from immersion

• Shock Resistance: 50 g

• Vibration Resistance: 20 g (10–2000 Hz)

• Operating Temperature Range: –25 to +80 °C

• Burst Pressure: ≥ 1000 bar

• Overload Pressure: Up to 200 bar

• Easy mechanical switch-point adjustment without external tools

• Compact design fits in tight spaces

• Robust and maintenance-free operation

• Long service life with > 50 million switching cycles

• Full electrical protection against short-circuit, overload, and reverse polarity

• Hydraulic and pneumatic pressure monitoring

• Mobile equipment and construction machinery

• Pump control and overpressure protection

• Factory automation and safety interlock systems

Additional Information:

• Item Code: IFM-PK5522
• Delivery Time: Ready Stock

The IFM PK5524 is a compact, rugged electronic pressure switch designed for low-pressure applications up to 10 bar (145 psi). Featuring a robust stainless-steel thin-film sensor, this device provides reliable pressure monitoring with fast response time and high accuracy. It is especially well-suited for use in hydraulic, pneumatic, and refrigeration systems.

One of its key advantages is the intuitive mechanical adjustment ring that allows users to set the switch point on-site without the need for additional tools or programming equipment. The switch is equipped with a solid-state PNP output, offering fast switching capability and built-in electrical protections for short circuit and overload.

• Enclosure Protection: IP67 – dust-tight and resistant to water immersion

• Operating Temperature Range: –25 to +80 °C

• Burst Pressure: 300 bar

• Overload Protection: Yes (up to 20 bar)

• Shock Resistance: 50 g

• Vibration Resistance: 20 g (10–2000 Hz)

• Tool-free mechanical switch-point setting simplifies installation and adjustment

• Durable stainless-steel sensor ensures long-term reliability

• Compact design ideal for tight spaces and mobile equipment

• Solid-state output for fast, wear-free switching

• Excellent electrical protection against short circuits and overloads

• Low-pressure hydraulic and pneumatic systems

• Industrial machinery and automation

• Refrigeration systems (suitable for many refrigerants)

• Mobile machines and HVAC units

• Equipment safety monitoring and pressure alarms

Additional Information:

• Item Code: IFM-PK5524
• Delivery Time: Ready Stock

The IFM PK6523 is a robust, dual-output electronic pressure switch engineered for reliable monitoring and control of system pressure up to 25 bar (363 psi). Designed for ease of use and long service life, this switch features two independently adjustable mechanical setpoints—perfect for applications requiring both rising and falling pressure detection within a defined hysteresis band.

Its stainless steel thin-film sensor provides excellent resistance to shock, vibration, and media compatibility, making it ideal for demanding hydraulic, pneumatic, and industrial systems. The compact design, high switching frequency, and maintenance-free solid-state outputs make it a dependable solution for modern automation environments.

• Enclosure Protection: IP67 – dust-tight and protected against temporary immersion

• Operating Temperature Range: –25 to +80 °C

• Overload Pressure: 60 bar

• Burst Pressure: ≥ 500 bar

• Vibration Resistance: 20 g (10–2000 Hz)

• Shock Resistance: 50 g

• Mechanical Life: > 50 million switching cycles

• Housing/Wetted Materials: 316L stainless steel, PBT/PC body, FKM seals

• Dual setpoints allow precise control with adjustable hysteresis

• Fast switching and solid-state output for reliable, maintenance-free operation

• Mechanical adjustment – no software or tools required

• Compact and rugged design suitable for industrial and mobile use

• Fully protected electronics and high-pressure durability

• Hydraulic circuit monitoring

• Pneumatic systems requiring dual pressure thresholds

• Refrigeration and compressor control

• Mobile construction or agricultural machinery

• General-purpose industrial automation

Additional Information:

• Item Code: IFM-PK6523
• Delivery Time: Ready Stock

The IFM PK6520 is a high-performance, dual-output electronic pressure switch designed for precise and reliable pressure control in high-pressure applications up to 400 bar (5800 psi). Featuring a robust stainless steel thin-film sensor, this pressure switch delivers long-term stability and excellent resistance to overload, making it ideal for demanding industrial and mobile applications.

This model is equipped with two PNP switching outputs, allowing flexible pressure control with configurable hysteresis using two mechanical adjustment rings. The intuitive, tool-free adjustment design enables quick setup and ensures secure switch point locking. Built-in electrical protections and IP67 ingress protection guarantee safe operation in harsh environments.

• Enclosure Protection: IP67 – dust-tight and protected against immersion

• Operating Temperature Range: –25 to +80 °C

• Overload Pressure: 600 bar

• Burst Pressure: ≥ 1600 bar

• Shock Resistance: 50 g

• Vibration Resistance: 20 g (10–2000 Hz)

• Mechanical Life: > 50 million switching cycles

• MTTF: ~450 years

• Dual setpoints for rising and falling pressure control

• Compact and durable design with full media compatibility

• Quick and secure mechanical switch-point setting

• Maintenance-free solid-state operation

• Ideal for high-pressure industrial and mobile applications

• Hydraulic and pneumatic system control

• High-pressure safety or shutdown triggers

• Industrial machinery and automation systems

• Mobile equipment in construction or agriculture

Additional Information:

• Item Code: IFM-PK6520
• Delivery Time: Ready Stock

The IFM PK6524 is a compact and high-performance dual electronic pressure switch, engineered for reliable control and monitoring of low-pressure systems up to 10 bar (145 psi). Designed for industrial and mobile machine applications, it features two solid-state PNP outputs and intuitive mechanical rotary adjustment rings for setting independent switch points—no programming or software required.

This pressure switch is built with a stainless-steel thin-film measuring cell for outstanding long-term stability and media compatibility, and is housed in a rugged enclosure rated IP67 for harsh environments. Its mechanical locking system prevents unintentional adjustment, ensuring consistent performance in dynamic and high-vibration settings.

• Enclosure Protection: IP67 (dust-tight and protected against immersion)

• Operating Temperature: –25 to +80 °C

• Storage Temperature: –40 to +100 °C

• Overload Pressure: 25 bar

• Burst Pressure: ≥ 300 bar

• Shock Resistance: 50 g

• Vibration Resistance: 20 g (10–2000 Hz)

• Mechanical Life: > 50 million switching cycles

• MTTF (Mean Time To Failure): ~500 years

• Housing Materials: Stainless steel 316L (wetted parts), PBT/PC body

• Seal Material: FKM

• Weight: ~92.5 grams

• Tool-free, intuitive mechanical switch-point setting

• Dual adjustable thresholds for flexible hysteresis configuration

• Maintenance-free operation with solid-state electronics

• High durability and performance in harsh conditions

• Compact and easy to install in space-constrained systems

• Pneumatics and compressor systems

• Mobile hydraulic equipment

• Refrigeration and HVAC systems

• Machine tools and safety circuits

• Pressure limit signaling and interlocks

Additional Information:

• Item Code: IFM-PK6524
• Delivery Time: Ready Stock