Why Choose the Pizzato ST GD420N2-D1T ST G Series Safety Sensor?
The Pizzato ST GD420N2-D1T is a compact and highly reliable RFID non-contact safety sensor designed for machine guarding, safety interlocking and industrial automation applications. Part of the advanced Pizzato ST G series, it combines RFID detection with a high-level coded actuator to provide dependable monitoring of movable guards, doors and protective access points without mechanical contact.
The ST GD420N2-D1T provides 2 safety inputs (IS1–IS2), 2 safety outputs (OS1–OS2), 1 signalling output (O3) and 1 programming input (I3). The programmable GD420 configuration supports flexible integration into modern machine safety architectures, including series-connected safety devices and systems using safety modules or safety PLCs with OSSD inputs.
Operating from a 24 V DC supply, this version uses a 2 m PVC cable and is paired with the SM D1T high-level coded actuator. The actuator provides an 11 mm actuation distance and features fixing on two levels, providing installation flexibility on different guard arrangements. With IP67 / IP69K protection and an ambient temperature range of -25 °C to +70 °C, the ST GD420N2-D1T is suitable for demanding industrial environments.
Key Advantages
- Reliable RFID non-contact safety sensing for industrial machine guarding.
- High-level coded SM D1T actuator provides enhanced protection against interlock manipulation.
- 11 mm actuation distance provides practical tolerance for machine guard alignment.
- 2 safety inputs and 2 safety outputs support series-connected safety architectures.
- Dedicated O3 signalling output and I3 programming input provide flexible control and diagnostic functionality.
- IP67 / IP69K protection supports operation in demanding industrial and washdown environments.
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.
- 2 m PVC cable connection.
- SM D1T high-level coded RFID actuator.
- 11 mm actuator actuation distance.
- Actuator designed with fixing on two levels.
- Compact symmetrical ST G series housing for flexible mounting.
- Redundant electronic architecture supporting high safety performance.
- 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 GD420N2-D1T monitor movable machine guards electronically without requiring mechanical contact between the sensor and actuator. The high-level coded SM D1T actuator provides individual RFID identification, helping protect the safety interlock against substitution or manipulation while allowing reliable detection of the guard position.
The ST G series uses redundant electronics and can support safety performance up to PL e and SIL 3 when correctly incorporated into a suitable safety system. Its two safety inputs and two safety outputs allow compatible Pizzato safety devices to be connected in series, while the compact symmetrical housing makes the ST G platform suitable for both left- and right-hand guard installations.
Typical Applications
- Machine guard and safety-door monitoring.
- Industrial safety interlocking systems.
- Packaging and production machinery.
- Automated assembly and robotic cells.
- Conveyor and material handling systems.
- Food, pharmaceutical and process machinery.
