ST DD420N3-D1T Pizzato ST D series safety sensor

Why Choose the Pizzato ST DD420N3-D1T ST D Series Safety Sensor?

The Pizzato ST DD420N3-D1T is an industrial RFID non-contact safety sensor with high-level coded actuator designed for reliable monitoring of movable guards, doors and protective devices. Part of the Pizzato ST D Series, it uses RFID technology to detect its associated actuator without mechanical contact, reducing wear and supporting dependable operation in high-cycle industrial machinery.

The ST DD420N3-D1T provides two safety inputs IS1 and IS2, two safety outputs OS1 and OS2, one signalling output O3 and one programming input I3. Its electronic PNP switching architecture supports integration into compatible industrial safety systems, while the D1T actuator provides a high coding level for increased resistance to actuator substitution and manipulation.

Operating from a 24 V DC supply, this N3 configuration uses an integrated 3 m PVC cable with the connection exiting from the right-hand side of the technopolymer housing. The D1T actuator provides a 12 mm actuation distance and measures 45 × 25 × 18 mm, with front and side fixing options. IP67 and IP69K protection and an operating temperature range from -25 °C to +70 °C make the sensor suitable for demanding industrial environments.

Key Advantages

• Non-contact RFID safety monitoring reduces mechanical wear in frequently operated machine guards.
• High-level coded D1T actuator provides enhanced resistance to actuator substitution and manipulation.
• 12 mm actuation distance provides practical tolerance between the sensor and actuator.
• Two safety inputs and two safety outputs support flexible machine safety integration.
• Integrated 3 m PVC cable provides convenient direct wiring to machine control equipment.
• IP67 / IP69K protection supports reliable operation in demanding industrial environments.

Key Features

• Pizzato ST D Series RFID safety sensor.
• RFID coded non-contact switching technology.
• 24 V DC power supply.
• 2 safety inputs: IS1 and IS2.
• 2 safety outputs: OS1 and OS2.
• 1 signalling output: O3.
• 1 programming input: I3.
• PNP electronic switching outputs.
• Integrated 3 m PVC cable.
• D1T high-level coded RFID actuator.
• 12 mm actuation distance.
• IP67 and IP69K environmental protection.

Reliable Safety Monitoring for Industrial Automation

The Pizzato ST D series uses RFID technology to monitor movable guards without requiring mechanical contact between the sensor and actuator. This non-contact operating principle reduces component wear and supports consistent switching performance in automated machinery where access doors, covers and guards are opened and closed frequently.

The ST DD420N3-D1T combines dual safety inputs and outputs with dedicated signalling and programming functionality for flexible integration into compatible safety architectures. Its high-level coded D1T actuator helps prevent unauthorised actuator substitution, while the integrated 3 m cable provides additional installation flexibility where the sensor is positioned away from the machine control enclosure.

Typical Applications

• Machine guard and access-door monitoring.
• Automated production and assembly machinery.
• Packaging and processing equipment.
• Robotic cells and automated manufacturing systems.
• Conveyors and material handling equipment.
• Industrial machinery requiring high-level coded RFID safety interlocking.