Why Choose the Pizzato ST DL420N3-D1T ST D Series Safety Sensor?
The Pizzato ST DL420N3-D1T is a programmable RFID non-contact safety sensor designed for monitoring machine guards, access doors and protective devices in industrial automation systems. Part of the Pizzato ST D RFID safety sensor series, it uses electronically coded RFID technology to detect the associated actuator without mechanical contact, helping minimise wear while providing dependable safety interlocking on frequently operated machinery.
Operating from a 24 V DC supply, the ST DL420N3-D1T provides two IS1–IS2 safety inputs, two OS1–OS2 safety outputs, one O3 signalling output and one I3 programming input. The programmable 420 configuration supports flexible machine safety architectures, while the ST D platform can be incorporated into suitably designed safety systems up to PL e, Category 4 and SIL 3.
The ST DL420N3-D1T uses a D1T high-coded RFID actuator with an actuation distance of approximately 12 mm. The high coding level provides enhanced protection against actuator substitution and manipulation in accordance with ISO 14119. The N3 configuration incorporates a 3 m cable with left-side exit, while the robust technopolymer housing and IP67 / IP69K protection support reliable operation in demanding industrial environments.
Key Advantages
- Programmable RFID safety sensor for industrial machine guard monitoring.
- D1T high-coded RFID actuator provides enhanced protection against substitution and manipulation.
- Approximately 12 mm actuation distance provides reliable non-contact guard detection.
- Two safety inputs, two safety outputs, one signalling output and one programming input support flexible safety integration.
- Integrated 3 m cable provides convenient direct wiring for industrial machinery.
- IP67 / IP69K protection supports operation in demanding industrial environments.
Key Features
- Pizzato ST D RFID safety sensor series.
- Non-contact switching using RFID technology.
- D1T high-coded RFID actuator.
- High coding level according to ISO 14119.
- Actuation distance of approximately 12 mm.
- Two IS1–IS2 safety inputs.
- Two OS1–OS2 safety outputs.
- One O3 signalling output.
- One I3 programming input.
- Programmable sensor functionality.
- 24 V DC supply voltage.
- Integrated 3 m cable with left-side exit.
- Robust technopolymer housing.
- IP67 / IP69K enclosure protection.
- Operating temperature range from -25 °C to +70 °C.
Reliable High-Coded RFID Guard Monitoring for Industrial Machinery
RFID safety sensors such as the Pizzato ST D series monitor movable guards and protective devices without requiring mechanical switching contact between the sensor and actuator. This contactless operating principle helps minimise mechanical wear and provides dependable monitoring where machine guards are frequently opened for production access, cleaning, maintenance or changeover procedures.
The ST DL420N3-D1T combines a high-coded D1T actuator with programmable electronic safety architecture and a practical 3 m integrated cable. Its two safety inputs support integration with compatible safety devices, while the signalling and programming functions provide additional flexibility for sophisticated machine safety systems requiring reliable coded guard monitoring.
Typical Applications
- Industrial machine guard and access-door monitoring.
- Packaging and production machinery.
- Automated assembly equipment.
- Robotic cells and industrial automation systems.
- Material handling and conveyor machinery.
- OEM machinery requiring high-coded non-contact RFID safety interlocking.
