ST GD420H20-L0T Pizzato ST G series safety sensor

Why Choose the Pizzato ST GD420H20-L0T ST G Series Safety Sensor?

The Pizzato ST GD420H20-L0T is a compact and highly reliable RFID safety sensor designed for monitoring guards, doors and other movable machine protection devices in industrial safety applications. As part of the Pizzato ST G series, it combines non-contact transponder technology with safety-rated outputs for dependable integration into modern machine safety systems.

This sensor operates from a 24 V DC supply and provides two safety inputs, two safety outputs, one signalling output and one programming input. Its non-contact operating principle helps minimise mechanical wear while allowing reliable guard monitoring in applications where conventional electromechanical safety switches may be less suitable.

The ST GD420H20-L0T features a PUR cable and is supplied with an L0T miniaturised actuator offering an 11 mm actuation distance. Its robust technopolymer housing provides IP67 and IP69K protection, making the sensor suitable for demanding industrial environments where resistance to dust, water and high-pressure cleaning is important.

Key Advantages

• Non-contact RFID safety sensor designed for machine guarding applications.
• 24 V DC supply suitable for industrial control and safety systems.
• 11 mm actuator actuation distance for reliable non-contact detection.
• Two safety inputs and two PNP safety outputs for integration into safety circuits.
• IP67 and IP69K protection for demanding industrial environments.
• PUR cable construction provides durability for industrial installations.
• Compact miniaturised actuator with front fixing for space-conscious machine designs.
• Status indication supports straightforward machine diagnostics and commissioning.

Key Features

• Pizzato ST G series RFID safety sensor.
• 24 V DC operating voltage.
• 2 safety inputs IS1-IS2.
• 2 safety outputs OS1-OS2.
• 1 signalling output O3.
• 1 programming input I3.
• PNP switching outputs.
• 11 mm actuation distance.
• Miniaturised L0T actuator with front fixing.
• Durable technopolymer sensor housing.
• PUR cable connection.
• Integrated status indication.
• Operating temperature from -25 to +70 °C.
• IP67 according to EN 60529 and IP69K according to ISO 20653.

Reliable Non-Contact Machine Safety

RFID safety sensors such as the Pizzato ST G series monitor the position of movable machine guards without requiring direct mechanical contact between the sensor and actuator. When the actuator is correctly positioned within the sensor's detection zone and the required input conditions are satisfied, the safety outputs can be activated for use by the machine safety control system.

The non-contact design reduces mechanical wear and provides greater tolerance to normal guard movement than many traditional tongue-operated switches. Combined with safety-rated electronics, diagnostic indication and robust environmental protection, the ST GD420H20-L0T is well suited to automated machinery requiring dependable guard position monitoring.

Typical Applications

• Machine guard and access door monitoring.
• Industrial automation and production machinery.
• Packaging and processing equipment.
• Automated assembly systems.
• Robotic cells and guarded manufacturing areas.
• Conveyor and material handling machinery.
• Food, beverage and washdown machinery environments.
• OEM machinery and safety control systems.