ST GD420N3-G1T Pizzato ST G series safety sensor

Why Choose the Pizzato ST GD420N3-G1T ST G Series Safety Sensor?

The Pizzato ST GD420N3-G1T is a compact and highly reliable RFID safety sensor designed for non-contact monitoring of guards, doors and access points on industrial machinery. As part of the advanced Pizzato ST G series, it combines RFID actuator recognition with redundant safety electronics to provide dependable machine guarding in automated production environments.

The ST GD420N3-G1T features two safety inputs IS1–IS2, two safety outputs OS1–OS2, a signalling output O3 and a programming input I3, allowing it to be integrated into safety chains, safety modules and safety PLC systems. Its high-level coded RFID actuator helps provide strong protection against manipulation while supporting safety applications up to PL e and SIL 3 when correctly integrated.

Operating from a 24 V DC supply, the sensor uses a 3 m PVC cable and provides an actuator operating distance of approximately 11 mm. Its compact 37 × 26 × 18 mm symmetrical technopolymer housing, IP67 and IP69K protection ratings and wide operating temperature range make it suitable for demanding industrial, food-processing and pharmaceutical environments.

Key Advantages

• Compact RFID safety sensor for machine guarding and interlocking.
• High-level coded actuator helps prevent unauthorised or accidental bypassing.
• Two safety inputs and two OSSD safety outputs support series-connected safety systems.
• 24 V DC operation suits standard industrial control systems.
• IP67 and IP69K protection enables use in harsh and washdown environments.
• Compact symmetrical housing simplifies installation on left- or right-opening guards.

Key Features

• Pizzato ST G series RFID safety sensor.
• 2 safety inputs IS1–IS2.
• 2 safety outputs OS1–OS2.
• 1 signalling output O3.
• 1 programming input I3.
• 24 V DC supply voltage.
• 3 m PVC connection cable.
• High-level RFID actuator coding according to EN ISO 14119.
• 11 mm actuator operating distance.
• Compact symmetrical housing with 22 mm mounting-hole spacing.
• Multicolour RGB status indication for rapid diagnostics.

Reliable Safety Monitoring for Industrial Automation

RFID safety sensors such as the Pizzato ST GD420N3-G1T monitor the position of movable guards without requiring direct mechanical contact between the sensor and actuator. When the coded actuator moves outside the permitted sensing zone, the safety outputs change state so that the connected safety controller can initiate a safe machine stop.

The ST G series is designed for modern machinery where compact dimensions, high resistance to contamination and reliable coded guard detection are required. Its redundant electronics, series-connectable safety inputs and outputs, high-level RFID coding and diagnostic indication make it well suited to automated production lines, robotic cells and machinery with multiple guarded access points.

Typical Applications

• Machine guard doors and access panels.
• Automated production and assembly machinery.
• Robotic cells and enclosed automation systems.
• Packaging and processing equipment.
• Food and pharmaceutical production machinery.
• Safety interlocking systems using safety PLCs or OSSD safety modules.