ST HE420MP-H1TG Pizzato ST H series safety sensor

Why Choose the Pizzato STHE420MP-H1TG Safety Interlock Sensor?

The Pizzato STHE420MP-H1TG is an advanced RFID safety interlock sensor designed for high-performance machine guarding, access control, and industrial automation safety systems. As part of the robust Pizzato ST H series safety sensor platform, it delivers secure non-contact monitoring of safety doors and protective guards in demanding industrial environments.

This model uses high-level coded RFID actuator recognition (H1TG logic) combined with a magnet-assisted holding system, providing stable door positioning and reliable guard detection in safety-critical applications. It is widely used in OEM machinery, robotics, packaging systems, and automated production lines where compliance with PL e (ISO 13849-1) and SIL 3 (IEC 61508) functional safety standards is required.

The STHE420MP-H1TG features a compact technopolymer housing with integrated M12 connector (MP version), designed for fast installation and reliable wiring in industrial control panels. Its non-contact RFID sensing system eliminates mechanical wear, improving durability and ensuring long service life in high-cycle automation environments. {index=1}

Key Advantages

• High-reliability RFID-coded safety interlock sensor for machine guarding applications.
• Expanded safety architecture with additional inputs for advanced control logic.
• Magnet-assisted holding system for improved door stability and alignment.
• Non-contact operation reduces mechanical wear and maintenance requirements.
• High coding level actuator recognition for improved tamper resistance.
• Integrated M12 connector (MP version) for fast industrial installation.

Key Features

• Pizzato ST H series RFID safety sensor.
• Model: STHE420MP-H1TG.
• RFID-coded actuator detection system.
• 2 safety outputs (OS1–OS2).
• 2 safety inputs (IS1–IS2).
• 1 signalling output (O3).
• 1 programming input (I3).
• High coding level actuator system.
• Actuation distance up to approx. 11 mm.
• Magnet-assisted holding system (~50 N depending on configuration).
• Integrated M12 connector (MP version).
• 24 V DC supply voltage.
• IP67 / IP69K protection rating.

Advanced Machine Safety with RFID Technology

The Pizzato STHE420MP-H1TG uses RFID-coded actuator recognition to ensure that only a correctly paired actuator can enable machine operation. Its expanded I/O structure supports more complex safety logic, making it suitable for advanced industrial automation systems with multi-level monitoring requirements.

According to official Pizzato ST H series technical documentation, the 420 MP variant belongs to the expanded function family of the ST H platform, designed for applications requiring additional safety inputs and configurable logic while maintaining high coding RFID protection for machine guarding systems. ([turn0search12][turn0search14])

The ST H series is engineered for harsh industrial environments with IP67/IP69K protection, making it suitable for robotics, packaging machinery, CNC systems, and automated production lines. ([turn0search4])

Typical Applications

• Industrial machine guarding systems.
• Automated production lines with complex safety logic.
• Robotics safety enclosures.
• CNC machine access doors.
• Packaging machinery.
• Advanced OEM automation systems.