ST GD420N3-E1T Pizzato ST G series safety sensor

Why Choose the Pizzato ST GD420N3-E1T ST G Series Safety Sensor?

The Pizzato ST GD420N3-E1T is a robust RFID non-contact safety sensor designed for machine guarding, safety interlocking and industrial automation applications. Part of the Pizzato ST G series, it combines electronic RFID detection with a large high-level coded actuator to provide dependable monitoring of movable guards, safety doors and protective access points without mechanical contact.

The ST GD420N3-E1T provides 2 safety inputs (IS1–IS2), 2 safety outputs (OS1–OS2), 1 signalling output (O3) and 1 programming input (I3). Operating from a 24 V DC supply, the GD420 architecture provides programmable functionality and supports integration with modern safety modules, safety PLCs and compatible interconnected safety devices.

This N3 version features a 3 m PVC cable and is paired with the SM E1T large high-level coded RFID actuator. The E-style actuator provides an extended 18 mm actuation distance, measures 40 × 50 × 16 mm and uses front fixing. The durable technopolymer housing operates from -25 °C to +70 °C and provides IP67 / IP69K protection for demanding industrial environments.

Key Advantages

• Reliable RFID non-contact safety sensing for industrial machine guarding.
• High-level coded SM E1T actuator provides enhanced protection against actuator substitution and interlock manipulation.
• Extended 18 mm actuation distance provides increased tolerance for guard alignment and movement.
• 2 safety inputs and 2 safety outputs support flexible machine safety architectures.
• Dedicated O3 signalling output and I3 programming input provide diagnostic and programmable functionality.
• 3 m PVC cable provides additional installation reach for direct-wired industrial applications.

Key Features

• Pizzato ST G series RFID safety sensor.
• 24 V DC supply voltage.
• 2 safety inputs (IS1–IS2).
• 2 safety outputs (OS1–OS2).
• 1 signalling output (O3).
• 1 programming input (I3).
• Programmable GD420 configuration.
• 3 m PVC cable connection.
• SM E1T high-level coded RFID actuator.
• 18 mm actuator actuation distance.
• Large actuator dimensions of 40 × 50 × 16 mm.
• Front-fixing E-style actuator.
• Durable technopolymer ST G series housing.
• Multicolour status indication for rapid operating-state diagnostics.
• -25 °C to +70 °C ambient operating temperature.
• IP67 according to EN 60529 and IP69K according to ISO 20653.

Reliable Safety Interlocking for Industrial Machinery

RFID safety sensors such as the Pizzato ST GD420N3-E1T monitor movable machine guards electronically without requiring mechanical contact between the sensor and actuator. The high-level coded SM E1T actuator provides individual RFID identification, helping protect the interlocking function against actuator substitution while providing reliable detection of the guard position.

The large E-style actuator provides an extended 18 mm actuation distance, making it particularly useful where additional sensing clearance or tolerance for guard movement is required. Combined with the programmable GD420 architecture, dual safety inputs and outputs, dedicated signalling output and programming input, the ST GD420N3-E1T provides a versatile safety solution for modern automated machinery.

Typical Applications

• Machine guard and safety-door monitoring.
• Industrial safety interlocking systems.
• Large or alignment-sensitive movable guards.
• Automated production and assembly machinery.
• Robotic cells and protective enclosures.
• Packaging, conveyor and material handling equipment.