ST HE420N5-H1TF Pizzato ST H series safety sensor

Why Choose the Pizzato ST HE420N5-H1TF ST H Series Safety Sensor?

The Pizzato ST HE420N5-H1TF is a robust RFID electronic safety interlock sensor with magnetic holding designed for reliable non-contact monitoring of guards, doors and access points on industrial machinery. As part of the Pizzato ST H RFID Safety Sensor Series, it combines high-level RFID actuator coding with electronic safety inputs and outputs to provide dependable guard monitoring without the mechanical wear associated with conventional contact-based safety switches.

Operating from a 24 V DC supply, the ST HE420N5-H1TF provides two safety inputs IS1–IS2, two safety outputs OS1–OS2, one signalling output O3 and one programming input I3. This comprehensive I/O configuration supports flexible integration with safety controllers and allows the sensor to form part of sophisticated machine guarding and industrial automation architectures.

The ST HE420N5-H1TF features an actuation distance of approximately 11 mm and uses a high-level coded actuator for enhanced protection against inappropriate or substitute actuation. Its integrated 5 m cable, durable technopolymer construction, magnetic holding functionality and IP67 / IP69K protection make it well suited to demanding industrial installations.

Key Advantages

• Reliable RFID non-contact safety interlocking for industrial machine guards.
• High-level actuator coding provides enhanced protection against simple bypassing of the safety function.
• Magnetic holding helps keep lightweight guards securely closed during normal machine operation.
• Approx. 11 mm actuation distance provides practical alignment tolerance during installation.
• Non-contact operation reduces mechanical wear and maintenance requirements.
• Two safety inputs and two safety outputs support flexible safety circuit integration.
• Integrated 5 m cable simplifies machine wiring and installation.
• IP67 / IP69K protection supports use in demanding industrial environments.

Key Features

• Pizzato ST H RFID Safety Sensor Series.
• 24 V DC supply voltage.
• 2 safety inputs IS1–IS2.
• 2 safety outputs OS1–OS2.
• 1 signalling output O3.
• 1 programming input I3.
• RFID coded non-contact actuator detection.
• High actuator coding level.
• Approx. 11 mm actuation distance.
• Integrated magnetic holding functionality.
• Integrated 5 m fixed cable.
• Durable technopolymer ST H series housing.
• IP67 according to EN 60529 and IP69K according to ISO 20653.
• Operating temperature from -25 °C to +70 °C.

Reliable Safety Monitoring for Industrial Automation

RFID safety sensors such as the Pizzato ST HE420N5-H1TF monitor the position of machine guards by detecting a coded actuator without requiring physical contact between the sensor and actuator. This non-contact operating principle reduces mechanical wear while providing dependable guard position monitoring across repeated machine operating cycles.

The ST H series combines electronic safety monitoring with magnetic holding, helping guards remain closed against vibration, recoil and similar disturbances during normal operation. Its high-level RFID coding, dual safety inputs and outputs, signalling output and programming input make the ST HE420N5-H1TF suitable for integration into modern industrial safety controllers and automated machinery.

Typical Applications

• Industrial machine guard monitoring.
• Safety doors and movable access panels.
• Robotic cells and automated manufacturing systems.
• Packaging and processing machinery.
• Conveyor and material handling equipment.
• Guards requiring non-contact monitoring and magnetic holding.
• OEM machine building and industrial safety systems.