ST DL420MK Pizzato ST D series safety sensor

ST DL420MK Pizzato ST D series safety sensor

Pizzato ST DL420MK is a programmable 24 V DC ST D series RFID safety sensor with two safety inputs, two safety outputs, one signalling output, one programming input, an M12 connection and IP67/IP69K protection for industrial machine guard monitoring.

SKU: STDL420MKAlt SKU: STDL420MKMPN: ST DL420MK
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Why Choose the Pizzato ST DL420MK ST D Series Safety Sensor?

The Pizzato ST DL420MK is a programmable RFID non-contact safety sensor from the Pizzato ST D series, designed for monitoring machine guards, access doors and protective devices in industrial automation systems. Its electronic non-contact operating principle eliminates mechanical switching between the sensor and actuator, helping reduce wear and support reliable operation on frequently accessed machinery.

Operating from a 24 V DC supply, the ST DL420MK provides two IS1–IS2 safety inputs, two OS1–OS2 safety outputs, one O3 signalling output and one I3 programming input. The 420 configuration provides programmable functionality for flexible integration into machine safety architectures and can be incorporated into suitably designed systems up to PL e, Category 4 and SIL 3.

The ST DL420MK features an M12 connector positioned on the left for convenient machine wiring and servicing. Its robust technopolymer housing, IP67 / IP69K protection and operating temperature range of -25 °C to +70 °C make it suitable for demanding industrial environments. The appropriate compatible RFID actuator can be selected according to the required actuation distance and coding level.

Key Advantages

  • Programmable RFID safety sensor for industrial machine guard monitoring.
  • Non-contact technology helps minimise mechanical wear on frequently operated guards.
  • Two safety inputs and two safety outputs support flexible safety circuit integration.
  • O3 signalling output and I3 programming input provide additional control functionality.
  • M12 connector enables convenient installation, replacement and servicing.
  • IP67 / IP69K protection supports use in demanding industrial environments.

Key Features

  • Pizzato ST D RFID safety sensor series.
  • Non-contact switching using RFID technology.
  • 24 V DC supply voltage.
  • Two IS1–IS2 safety inputs.
  • Two OS1–OS2 safety outputs.
  • One O3 signalling output.
  • One I3 programming input.
  • Programmable sensor functionality.
  • M12 connector positioned on the left.
  • Robust technopolymer housing.
  • IP67 / IP69K enclosure protection.
  • Operating temperature range from -25 °C to +70 °C.
  • Compatible with selected ST D RFID actuators for different coding and sensing requirements.

Flexible RFID Guard Monitoring for Industrial Machinery

Pizzato ST D RFID safety sensors monitor movable guards and protective devices without requiring mechanical switching contact between the sensor and actuator. This contactless principle helps reduce mechanical wear and provides dependable guard monitoring for machinery where doors and protective guards are frequently opened during production, maintenance, cleaning or changeover procedures.

The ST DL420MK combines programmable safety functionality with two safety inputs, two safety outputs and an M12 connection, making it suitable for flexible machine safety architectures. Compatible ST D actuators are available with different coding levels and actuation distances, allowing machine builders to select the actuator configuration appropriate to the application's safety and installation requirements.

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 programmable non-contact RFID safety interlocking.

Technical Specifications

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Connection M12 connector
Sensing Principle RFID (coded)
Contacts 2 safety outputs (OSSD) + 1 signalling
Product Series Pizzato ST D (RFID)
IP Rating IP67, IP69K
Manufacturer Pizzato Elettrica
Series ST D Safety Sensor Series
Model ST DL420MK
SKU STDL420MK
Product type Programmable RFID non-contact safety sensor
Technology RFID coded non-contact switching
Supply voltage 24 V DC
Safety inputs 2 (IS1–IS2)
Safety outputs 2 (OS1–OS2)
Signalling output 1 (O3)
Programming input 1 (I3)
Programmable Yes
Connection type M12 connector
Connection position Left
Housing material Technopolymer
Protection rating IP67 / IP69K
Operating temperature -25 °C to +70 °C
Safety performance Up to PL e, Category 4 / SIL 3 in suitably designed safety systems
HS Code 85369095

Frequently Asked Questions

What is the Pizzato ST DL420MK used for?

The ST DL420MK is a programmable RFID safety sensor designed for non-contact monitoring of machine guards, access doors and protective devices in industrial machinery and automation systems.

What inputs and outputs does the ST DL420MK provide?

The ST DL420MK provides two IS1–IS2 safety inputs, two OS1–OS2 safety outputs, one O3 signalling output and one I3 programming input for integration into machine safety systems.

How is the Pizzato ST DL420MK connected?

The ST DL420MK uses an M12 connector positioned on the left, providing a convenient detachable connection for installation, maintenance and sensor replacement.

Which actuator is used with the ST DL420MK?

The ST DL420MK can be paired with a compatible Pizzato ST D RFID actuator. The actuator should be selected according to the required coding level, actuation distance and installation arrangement.

Is the ST DL420MK suitable for demanding industrial environments?

Yes. The ST D series features robust technopolymer construction, IP67 / IP69K protection and an operating temperature range of -25 °C to +70 °C, supporting use in demanding industrial machinery applications.

Trusted Safety Technology for Industrial Automation

Pizzato ST D series RFID safety sensors provide machine builders and automation engineers with reliable non-contact guard monitoring, programmable safety functionality and flexible integration for demanding industrial machinery and automated production systems.

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