ST GD420MK-L0T Pizzato ST G series safety sensor

Why Choose the Pizzato ST GD420MK-L0T ST G Series Safety Sensor?

The Pizzato ST GD420MK-L0T is a compact RFID safety sensor designed for non-contact monitoring of movable guards, doors and protective access points on industrial machinery. Part of the Pizzato ST G series, it combines RFID transponder technology with electronic safety circuitry to provide reliable guard-position monitoring without the mechanical wear associated with conventional electromechanical safety switches.

The ST GD420 architecture operates from a 24 V DC supply and provides two safety inputs IS1–IS2, two safety outputs OS1–OS2, one signalling output O3 and one programming input I3. This configuration supports integration with modern safety PLCs, safety modules and series-connected safety architectures, while integrated diagnostic indication helps simplify machine commissioning and troubleshooting.

This MK version features an integrated M12 connector and is supplied with the compact SM L0T RFID actuator. The L0T actuator has a low coding level and provides an 11 mm actuation distance, making it particularly suitable for installations where a miniaturised actuator is required. IP67 and IP69K protection and an operating range of -25 to +70 °C support dependable operation in demanding industrial environments.

Key Advantages

• Non-contact RFID safety monitoring reduces mechanical wear on frequently operated machine guards.
• Compact SM L0T miniaturised actuator is well suited to space-constrained installations.
• 11 mm actuation distance provides practical installation tolerance for guard monitoring.
• Two safety inputs and two safety outputs support flexible machine safety architectures.
• Integrated M12 connector simplifies installation, replacement and maintenance.
• IP67 and IP69K protection supports operation in demanding industrial environments.

Key Features

• Pizzato ST G series RFID safety sensor.
• SM L0T low-level coded RFID actuator.
• 2 safety inputs IS1–IS2.
• 2 safety outputs OS1–OS2.
• 1 signalling output O3.
• 1 programming input I3.
• 24 V DC power supply.
• Integrated M12 connector.
• 11 mm actuation distance.
• Miniaturised L0T actuator with front fixing.
• Compact symmetrical ST G sensor housing.
• 22 mm mounting-hole spacing for straightforward installation.
• RGB LED status indication for comprehensive diagnostics.

Reliable Safety Interlocking for Industrial Automation

The Pizzato ST G series uses RFID technology to detect a compatible coded actuator without requiring physical contact between the sensor and moving guard. This non-contact operating principle reduces mechanical wear and helps maintain dependable safety monitoring on guards exposed to frequent operating cycles, vibration and normal alignment tolerances. The compact L0T actuator is particularly useful where mounting space is limited.

The ST GD420MK-L0T combines two safety inputs with two safety outputs, signalling output O3 and programming input I3 for integration into modern industrial safety architectures. Its low-level coded L0T actuator uses the standard low-coded recognition scheme, while the integrated M12 connection provides convenient installation and servicing within modular machine wiring systems.

Typical Applications

• Machine guard and access-door monitoring.
• Compact guards with limited actuator mounting space.
• Automated manufacturing and assembly machinery.
• Packaging and processing equipment.
• Robotic cells and automated production lines.
• Conveyor and material handling systems.
• OEM machinery requiring electronic safety interlocking.