IFM PK6524 | Electronic Pressure Switch with Intuitive Switch Point Setting

Product Overview

The IFM PK6524​ is an electronic pressure switch designed for industrial automation applications requiring reliable pressure monitoring and switching functions. This compact device features intuitive switch point setting via two easy-to-read adjustment rings, providing precise control in both liquid and gas media applications. With its robust stainless steel measuring cell and mechanical locking mechanism, the PK6524 delivers high long-term stability and prevents unauthorized manipulation, making it ideal for hydraulic, pneumatic, air-conditioning, and refrigeration systems .

Key Features

• Intuitive Switch Point Setting​ - Two setting rings for easy and accurate adjustment

• High Long-term Stability​ - Robust stainless steel measuring cell with high permissible pressure rating

• Mechanical Locking​ - Prevents inadvertent switch point manipulation

• Dual LED Indicators​ - Clear visual indication of switching and operating status

• High Protection Rating​ - IP67 rated for harsh industrial environments

• Long Service Life​ - More than 50 million pressure cycles

• Wide Media Compatibility​ - Suitable for liquids and gases

Technical Specifications

Electrical Specifications

• Power Supply: 9.6-32V DC

• Output Configuration: PNP, 2 digital outputs (complementary)

• Output Signal: Switching signal

• Max Voltage Drop: 2V DC

• Permanent Current Rating: 500 mA

• Short-circuit Protection: Pulsed type

• Overload Protection: Yes

• Reverse Polarity Protection: Yes

• Insulation Resistance: > 100 MΩ (500V DC)

• Protection Class: III

Performance Characteristics

• Switch Point Accuracy: < ±2.5% of final value (setting accuracy)

• Repeatability: < ±0.5% of final value (with temperature fluctuations < 10K)

• Characteristics Deviation: < ±1.5% (BFSL) / < ±2.5% (LS)

• Temperature Drift: < ±0.5% per 10K

• Set Point Range: 0.5-10 bar (7.5-145 psi)

• Reset Point Range: 0.3-9.8 bar (5-142 psi)

Mechanical Specifications

• Housing Material: PBT, PC, FKM

• Process Connection: G 1/4 external thread, M5 internal thread

• Electrical Connection: M12 connector, 4-pin

• Mounting: Cylindrical threaded housing

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

• Shock Resistance: 50 g (11 ms)

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

Applications

• Hydraulic Systems​ - Pressure monitoring and control

• Pneumatic Applications​ - Air pressure regulation and switching

• Air-conditioning Systems​ - Refrigerant pressure monitoring

• Refrigeration Technology​ - Cooling system pressure control

• Process Control​ - Industrial automation and equipment protection

• Water Treatment​ - Pump monitoring and system protection

Special Functions

• Adjustment Rings​ - Two easy-to-read rings for precise switch point setting

• Mechanical Locking​ - Prevents unauthorized manipulation of settings

• LED Indicators​ - Yellow LEDs for switching status, green LED for operation status

• Complementary Outputs​ - Two digital outputs with NO/NC configuration

• Easy Parameterization​ - Simple setup via adjustment rings

Environmental Compliance

• EMC Standards: DIN EN 61000-6-2, DIN EN 61000-6-3

• Ingress Protection: IP67

• Operating Temperature: -25°C to 80°C

• Storage Temperature: -40°C to 100°C

• Pressure Equipment Directive: Compliant for group 2 fluids

Installation Requirements

• Power Supply: 9.6-32V DC, Class 2 SELV/PELV recommended

• Process Connection: G 1/4 external thread with appropriate sealing

• Electrical Connection: M12 connector with 4-pin configuration

• Mounting: Ensure proper alignment and secure installation

• Media Compatibility: Suitable for liquids and gases

Maintenance

• Regular Inspection: Check for physical damage and proper operation

• Calibration: Verify switch points periodically for critical applications

• Cleaning: Keep process connection and electrical contacts clean

• Diagnostics: Monitor LED indicators for operational status