Why Choose the Pizzato ST DD311MK-L1T ST D Series Safety Sensor?
The Pizzato ST DD311MK-L1T is a high-performance RFID safety sensor designed for contactless monitoring of movable guards, access doors and protective devices on industrial machinery. As part of the advanced Pizzato ST D series, it combines RFID actuator recognition with redundant electronic safety inputs and outputs for dependable machine safeguarding in demanding automation environments.
This model uses a high-level coded L1T RFID actuator, providing increased protection against manipulation and unauthorised actuator substitution. The slim L-format actuator measures just 53 × 16 × 7 mm and is designed for front fixing, making it particularly useful where installation space is limited. Contactless sensing eliminates mechanical contact between the sensor and actuator, reducing wear during frequent guard operating cycles.
The ST DD311MK-L1T operates from a 10 to 30 V DC supply, making it suitable for standard 24 V DC industrial control systems, and features an integrated stainless-steel M12 connector. It provides two safety inputs, two safety outputs and one signalling output, with a nominal 12 mm actuation distance. Its technopolymer housing, -25 °C to +70 °C operating range and IP67 / IP69K protection provide excellent durability for industrial applications.
Key Advantages
- Contactless RFID safety sensor designed for machine guard monitoring.
- High-level coded L1T actuator provides increased protection against manipulation.
- Supports safety applications up to PL e and SIL 3 when correctly integrated.
- 12 mm actuation distance provides useful tolerance for guard alignment.
- Compact 53 × 16 × 7 mm L-format actuator is ideal for space-restricted installations.
- Integrated stainless-steel M12 connector simplifies connection and replacement.
- IP67 and IP69K protection for demanding industrial and washdown environments.
Key Features
- Pizzato ST D series RFID safety sensor.
- 10 to 30 V DC supply range, suitable for 24 V DC systems.
- 2 safety inputs IS1 and IS2.
- 2 safety outputs OS1 and OS2.
- 1 signalling output O3.
- PNP switching outputs.
- High-level coded L1T RFID actuator.
- 12 mm nominal actuation distance.
- L1T actuator dimensions of 53 × 16 × 7 mm.
- Front-fixing L-format actuator for compact installations.
- Integrated stainless-steel M12 connector.
- Technopolymer housing with right-hand connection.
Reliable RFID Protection for Machine Guards
RFID safety sensors such as the Pizzato ST DD311MK-L1T monitor machine guards without requiring mechanical contact between the sensor and actuator. The high-level coded L1T actuator is electronically recognised by the sensor, allowing a compatible safety control system to verify the position of the associated guard before hazardous machine movement is permitted.
The compact L-format actuator makes this configuration particularly useful where conventional actuators are difficult to accommodate. Combined with redundant safety channels, PNP outputs, an integrated M12 connector and high environmental protection, the ST DD311MK-L1T provides a practical solution for modern machinery requiring reliable contactless guard monitoring.
Typical Applications
- Machine guard and access door monitoring.
- Compact guards with restricted actuator mounting space.
- Packaging and production machinery.
- Automated assembly equipment.
- Robotic cells and perimeter guarding.
- Food and beverage processing machinery.
- Material handling and conveyor systems.
