ST GD420MK-G1T Pizzato ST G series safety sensor

Why Choose the Pizzato STGD420MK-G1T Safety Interlock Sensor?

The Pizzato STGD420MK-G1T is a high-performance RFID safety interlock sensor designed for machine guarding, access control, and industrial safety applications. As part of the advanced Pizzato ST G series safety sensor platform, it delivers reliable non-contact monitoring of safety doors and protective guards in automated machinery systems.

This model uses high-level coded RFID actuator recognition to ensure secure identification of the correct actuator, significantly reducing the risk of bypass or tampering. It is widely used in OEM machinery, robotics, packaging systems, and automated production lines where high functional safety and compliance with PL e (ISO 13849-1) and SIL 3 (IEC 61508) are required.

The STGD420MK-G1T features a rugged technopolymer housing with integrated M12 connector (MK version), designed for easy installation and reliable performance in demanding industrial environments. Its non-contact sensing system eliminates mechanical wear, improves service life, and supports integration into modern safety PLC architectures. {index=1}

Key Advantages

• High-reliability RFID-coded safety interlock sensor for machine guarding applications.
• Non-contact operation eliminates mechanical wear and reduces maintenance.
• High tamper resistance with coded actuator recognition (1T high coding).
• Designed for industrial automation and safety-critical systems.
• Compatible with safety PLCs and modern distributed safety architectures.
• Compact M12 connector design for fast installation (MK version).

Key Features

• Pizzato ST G series RFID safety sensor.
• Model: STGD420MK-G1T.
• RFID-coded actuator detection system.
• 2 safety inputs (IS1–IS2).
• 2 safety outputs (OS1–OS2).
• 1 signalling output (O3).
• High coding level actuator (1T type).
• Actuation distance up to approx. 11 mm.
• Integrated M12 connector (MK housing type).
• 24 V DC supply voltage.
• IP67 / IP69K protection rating.

Advanced Machine Safety with RFID Technology

The Pizzato STGD420MK-G1T uses RFID-coded actuator technology to ensure that only a correctly paired actuator can enable machine operation. This enhances safety by preventing unauthorized bypass attempts in industrial environments.

According to ST G series technical specifications, high-coding RFID sensors are designed for use in safety circuits up to PL e and SIL 3 when correctly integrated into a compliant safety system architecture. The monolithic, resin-free housing also improves resistance in harsh environments such as food and pharmaceutical production. ([turn0search10])

The non-contact design improves durability in high-cycle applications, including robotics, CNC systems, packaging machinery, and automated assembly lines. ([turn0search11])

Typical Applications

• Industrial machine guarding systems.
• Automated production lines.
• Robotics safety enclosures.
• CNC machinery access doors.
• Packaging and filling equipment.
• Food and pharmaceutical automation systems.