ST HD511N2-H1T Pizzato ST H series safety sensor

Why Choose the Pizzato STHD511N2-H1T Safety Interlock Sensor?

The Pizzato STHD511N2-H1T is a robust RFID safety interlock sensor designed for machine guarding, access control, and industrial automation safety applications. As part of the advanced Pizzato ST H series RFID 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 (H1T logic) to ensure that only a correctly paired actuator can enable machine operation, helping prevent tampering and unintended bypass. 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) safety standards is required.

The STHD511N2-H1T features a rugged technopolymer housing with integrated N2 fixed cable connection, designed for direct wiring into machine control systems. Its non-contact RFID sensing eliminates mechanical wear, improving durability and ensuring long service life in high-cycle automation environments. {index=1}

Key Advantages

• High-performance RFID-coded safety interlock sensor for machine guarding applications.
• Non-contact operation reduces mechanical wear and maintenance requirements.
• High coding level actuator recognition for improved tamper resistance.
• Designed for industrial automation and safety-critical systems.
• Compatible with safety PLC architectures and modern machine safety systems.
• Integrated N2 fixed cable for direct wiring installation.

Key Features

• Pizzato ST H series RFID safety sensor.
• Model: STHD511N2-H1T.
• RFID-coded actuator detection system.
• 2 safety inputs (IS1–IS2).
• 2 safety outputs (OS1–OS2).
• 1 signalling output (O3).
• 1 programming input (I3).
• High coding level actuator system.
• Actuation distance up to approx. 11 mm.
• Integrated N2 fixed cable connection.
• 24 V DC supply voltage.
• IP67 / IP69K protection rating.

Advanced Machine Safety with RFID Technology

The Pizzato STHD511N2-H1T uses RFID-coded actuator recognition to ensure that only a correctly paired actuator can enable machine operation. This significantly improves safety integrity and reduces the risk of unauthorized access in industrial environments.

Based on ST H series configuration structure, 511-series variants represent extended functional configurations within the 510 platform family, typically used where additional diagnostic or control logic flexibility is required while maintaining high-level safety performance when correctly integrated. ([turn0search12])

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. ([turn0search13])

Typical Applications

• Industrial machine guarding systems.
• Automated production lines.
• Robotics safety enclosures.
• CNC machine access doors.
• Packaging machinery.
• General industrial automation systems.