ST DD420N2-D1T Pizzato ST D series safety sensor

Why Choose the Pizzato STDD420N2-D1T RFID Safety Sensor?

The Pizzato STDD420N2-D1T is a high-reliability RFID-coded safety sensor designed for machine guarding, interlocking systems, and industrial automation safety applications. It belongs to the advanced ST D series, engineered for non-contact monitoring of protective doors, safety guards, and access panels in industrial machinery.

This model uses high-level RFID coding to ensure that only the correctly paired actuator is recognised, providing strong tamper resistance and dependable safety performance. It is widely used in OEM machinery, packaging systems, and automated production lines where safety integrity and compliance are essential.

The STDD420N2-D1T features a robust technopolymer housing with right-side output connection and integrated cable design. It supports an actuation distance of up to 12 mm, allowing flexible installation even in applications with slight alignment tolerances. {index=1}

Key Advantages

• High-reliability RFID-coded safety detection for machine guarding systems.
• Non-contact operation eliminates mechanical wear and reduces maintenance.
• High tamper resistance with single-coded actuator recognition (D1T level coding).
• Extended operating distance up to 12 mm for flexible installation.
• IP67 / IP69K protection for harsh industrial environments.
• Supports high safety performance up to PL e / SIL 3 when integrated into a safety system.

Key Features

• Pizzato ST D series safety sensor.
• Model: STDD420N2-D1T.
• RFID-coded actuator recognition system.
• Actuator coding level: high coding (D1T).
• Outputs: 2 safety outputs (OS1–OS2) + 1 signalling output (O3). {index=2}
• Inputs: 2 safety inputs (IS1–IS2) + 1 programming input (I3). {index=2}
• Supply voltage: 24 VDC. {index=2}
• Actuation distance: 12 mm.
• Integrated PVC cable connection (N2 version).
• Technopolymer housing with right-side output design.
• Operating temperature: -25°C to +70°C.

Reliable Safety Performance for Industrial Automation

The Pizzato STDD420N2-D1T ensures safe machine operation by monitoring the position of protective guards and access doors. Its RFID-coded system guarantees that only the correct actuator is detected, helping prevent bypassing and improving overall machine safety integrity.

Its non-contact design eliminates mechanical wear, ensuring long service life even in high-cycle industrial environments. The IP67/IP69K-rated housing provides strong resistance to dust, moisture, vibration, and industrial washdown conditions. {index=3}

Typical Applications

• Machine safety interlock systems.
• Protective doors and safety guarding.
• Industrial automation systems.
• Packaging and production machinery.
• Robotics and CNC machines.
• OEM machine building applications.