ST DD421MK-L1T Pizzato ST D series safety sensor

ST DD421MK-L1T Pizzato ST D series safety sensor

Pizzato ST DD421MK-L1T ST D series RFID safety sensor with high coding level actuator technology, 24 V DC supply, 12 mm actuation distance, M12 connector and IP67/IP69K protection for industrial machine guarding applications.

SKU: STDD421MK-L1TAlt SKU: STDD421MKL1TMPN: ST DD421MK-L1T
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List Price £110.81 ex VAT
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Why Choose the Pizzato ST DD421MK-L1T Safety Sensor?

The Pizzato ST DD421MK-L1T is a compact and reliable RFID coded non-contact safety sensor designed for monitoring machine guards, safety doors and protective access points in industrial automation systems. As part of the advanced Pizzato ST D series safety sensor range, it provides dependable guard monitoring using RFID technology, eliminating mechanical contacts for improved durability and long service life.

The ST D series uses coded RFID actuator technology to provide secure safety switching and reliable actuator recognition in safety-related machinery applications. The ST DD421MK-L1T combines integrated safety inputs, safety outputs, signalling functions and a compact M12 connector design for efficient integration into modern safety control systems.

With a 24 V DC supply voltage, 12 mm actuation distance, M12 connector connection and IP67 / IP69K protection rating, the ST DD421MK-L1T is designed for reliable operation in demanding industrial environments.

Key Advantages

  • Compact RFID coded safety sensor for industrial machine guarding.
  • High coding level RFID actuator technology provides secure actuator recognition.
  • Non-contact operation eliminates mechanical switching wear.
  • 24 V DC operation suitable for industrial safety circuits.
  • 12 mm actuation distance for flexible machine safety installation.
  • IP67 / IP69K protection for harsh industrial environments.

Key Features

  • Pizzato ST D series RFID safety sensor.
  • RFID coded non-contact switching technology.
  • High coding level miniaturised actuator recognition (L1T).
  • 2 safety inputs IS1-IS2.
  • 2 safety outputs OS1-OS2.
  • 1 signalling output O3.
  • 1 programming input I3.
  • 12 mm actuation distance.
  • M12 connector connection for simplified industrial wiring.
  • Technopolymer housing for robust operation.

Reliable Safety Monitoring for Industrial Machinery

RFID safety sensors such as the Pizzato ST DD421MK-L1T provide reliable monitoring of movable guards by detecting coded actuators and controlling safety circuits when access points are opened. The contactless design supports long operating life and consistent performance in applications with frequent safety cycles and demanding environmental conditions.

The ST D series is designed for machine builders and automation engineers requiring compact safety devices with robust protection, flexible installation and dependable integration into industrial safety systems.

Typical Applications

  • Machine safety door and guard monitoring.
  • Industrial automation equipment.
  • Packaging and assembly machinery.
  • Production and processing systems.
  • Robotics and automated manufacturing cells.
  • OEM machine safety applications.

Technical Specifications

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Connection M12 connector
Product Series Pizzato ST D (RFID)
Sensing Principle RFID (coded)
Coding Level High (unique)
Contacts 2 safety outputs (OSSD) + 1 signalling
IP Rating IP67, IP69K
Manufacturer Pizzato Elettrica
Series ST D Series Safety Sensors
Model ST DD421MK-L1T
Product type RFID safety sensor
Technology RFID coded non-contact switching
Actuator coding level High coding level
Power supply 24 V DC
Safety inputs 2 (IS1-IS2)
Safety outputs 2 (OS1-OS2)
Signalling output 1 (O3)
Programming input 1 (I3)
Actuation distance 12 mm
Connection type M12 connector
Housing material Technopolymer
Protection rating IP67 / IP69K
Operating temperature -25°C to +70°C
HS Code 85369095

Frequently Asked Questions

What is the Pizzato ST DD421MK-L1T used for?

The sensor is used for monitoring machine guards, safety doors and protective access points in industrial automation systems.

What technology does the ST DD421MK-L1T use?

The sensor uses RFID coded non-contact switching technology to detect compatible coded actuators without mechanical contact.

What type of actuator coding does this sensor use?

The ST DD421MK-L1T uses a high coding level RFID actuator for reliable actuator recognition.

What power supply does this safety sensor require?

The sensor operates from a 24 V DC supply suitable for industrial safety control systems.

What protection rating does the sensor provide?

The sensor provides IP67 / IP69K protection for reliable operation in demanding industrial environments.

Trusted by Machine Builders Worldwide

Pizzato ST D series RFID safety sensors are trusted by automation engineers and machine builders for reliable guard monitoring, durable operation and seamless integration into industrial safety systems.