Why Choose the Pizzato ST HD421MK Safety Sensor?
The Pizzato ST HD421MK is a compact and reliable RFID-coded non-contact safety sensor from the Pizzato ST H series, designed for monitoring movable guards, safety doors and access points on industrial machinery. Its electronic RFID technology provides dependable guard position detection without mechanical switching contacts, making it suitable for modern machine safety and automation systems.
The ST H series combines coded RFID detection with a robust technopolymer housing for demanding industrial safety applications. The ST HD421MK features an integrated M12 stainless steel connector and is supplied without an actuator, allowing a compatible actuator to be selected separately according to the machine guarding arrangement.
With 24 V DC operation, two safety inputs, two safety outputs, one signalling output and one programming input, the ST HD421MK provides flexible integration with industrial safety control systems. Its compact design and non-contact operation make it suitable for machine guards that are frequently opened and closed.
Key Advantages
- Compact RFID safety sensor designed for machine guarding.
- Non-contact coded detection provides reliable guard monitoring without mechanical switching contacts.
- 24 V DC operation for straightforward industrial control integration.
- Integrated M12 stainless steel connector for robust industrial connection.
- Supplied without an actuator, allowing selection of a suitable compatible actuator.
- IP67 and IP69K protection for demanding industrial environments.
Key Features
- Pizzato ST H series RFID safety sensor.
- ST HD421MK product configuration.
- Non-contact RFID-coded detection technology.
- 2 safety inputs IS1–IS2.
- 2 safety outputs OS1–OS2.
- 1 signalling output O3.
- 1 programming input I3.
- 24 V DC operating supply.
- Integrated M12 stainless steel connector.
- Sensor supplied without actuator.
- Compatible with Pizzato ST H series actuator configurations.
- Electronic safety monitoring without mechanical switching contacts.
Reliable Safety Monitoring for Industrial Machinery
RFID safety sensors such as the Pizzato ST HD421MK monitor the position of machine guards without requiring mechanical electrical contacts between the sensor and actuator. When a compatible coded actuator is correctly positioned, the safety system can confirm the guard position and permit the protected machine function to operate.
The ST H series is designed for machine builders and industrial automation engineers requiring dependable guard monitoring and straightforward integration with safety control systems. The non-contact design avoids mechanical wear associated with conventional safety switches, while the separate sensor and actuator arrangement provides flexibility when designing machine guarding.
Typical Applications
- Industrial machine safety doors and access guards.
- Automated production and processing machinery.
- Robotic cells and guarded automation equipment.
- Packaging and material handling systems.
- Manufacturing machinery requiring non-contact guard monitoring.
- OEM machine-building and industrial safety applications.
