Overview
The ifm Electronic PK6220 is a compact, electronically controlled pressure switch designed for industrial automation and process control. It features a measuring range of 0–400 bar (0–5800 psi) and is built to withstand demanding applications in hydraulics, pneumatics, air-conditioning, and refrigeration. Its robust stainless steel measuring cell offers high long-term stability and a high permissible pressure rating, making it an ideal choice for systems requiring precision and durability.
Key Features
- Intuitive switch point setting via a scaled setting ring that allows configuration before installation without system pressure
- One normally open and normally closed contact with green LED for power indication and yellow LED for switching status
- Mechanical locking prevents unintentional maladjustment
- Lifespan of more than 50 million pressure cycles
- IP67 rating for protection in the harshest environments
Technical Specifications
- Pressure range: 0 to 5800 psi (0 to 400 bar) with off-set point of 175 to 5685 psi
- Housing and wetted materials: 316 stainless steel, compatible with air and liquids
- Electronic PNP circuit type with 0.5 A @ 9.6 to 32 V DC contact rating
- Process connection: 1/4 in MNPT (NPT threaded)
- Electrical connection: 4 pin M12 connector
- Contact form: 2SPST
- Burst pressure: 23,200 psi
- Operating temperature range: 13°F to 176°F
- IP rating: IP67
- Certifications: CE, DIN IEC 68-2-27, DIN IEC 68-2-6, EMC Approval, UL Listed
Typical Applications
The compact PK series can be used in nearly all industrial and mobile applications for both liquid and gaseous media, including hydraulics, pneumatics, air conditioning and refrigeration technology. The PK6220 is well-suited for system protection, machine safety circuits, and pressure-monitoring applications where reliable switching and long-term stability are critical.
Compatibility & Replacements
Compatible With
- Hydraulic and pneumatic control systems
- Air-conditioning and refrigeration equipment
- Mobile and stationary industrial machinery
- PLC and industrial automation controllers accepting 9.6–32 V DC PNP inputs
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering, as direct replacement requires matching pressure range, connector type, and electrical characteristics.
Works With
- M12 connector-based industrial automation systems
- Standard PNP pressure input modules
- 24 V and 32 V DC control circuits
- EtherNet/IP and PROFINET network nodes (via appropriate interface modules)
