ST DD420N10 Pizzato ST D series safety sensor

Why Choose the Pizzato ST DD420N10 ST D Series Safety Sensor?

The Pizzato ST DD420N10 is a compact, non-contact RFID safety sensor designed for monitoring guards, doors and other protective devices on industrial machinery. As part of the Pizzato ST D series, it uses RFID technology to provide dependable electronic guard detection without the mechanical contact and associated wear of conventional electromechanical safety switches.

Designed for high-performance machine safety applications, the ST DD420N10 provides two safety inputs IS1-IS2, two safety outputs OS1-OS2, one signalling output O3 and one programming input I3. Its redundant electronic architecture allows the ST D series to support safety systems up to PL e, Category 4 and SIL 3 when correctly integrated, while compatible sensors can be connected in series for machinery with multiple guarded access points.

The sensor operates from a 24 V DC supply and this configuration is supplied with a 10 m PVC cable exiting from the right-hand side of its technopolymer housing. The ST DD420N10 is supplied without an actuator, allowing the appropriate compatible ST D series RFID actuator to be selected separately. With an operating temperature range of -25 °C to +70 °C and IP67 / IP69K protection, it is suitable for demanding industrial environments.

Key Advantages

• Compact non-contact RFID safety sensor for industrial guard monitoring.
• Supports safety systems up to PL e, Category 4 and SIL 3 when correctly integrated.
• Two safety inputs and two safety outputs provide flexible machine safety integration.
• Dedicated signalling output and programming input support advanced control configurations.
• Compatible ST D sensors can be connected in series for monitoring multiple machine guards.
• 10 m PVC cable provides generous connection length for machinery installations.
• IP67 / IP69K protection supports operation in demanding industrial environments.
• Non-contact operation reduces mechanical wear compared with conventional safety switches.

Key Features

• Pizzato ST D series RFID safety sensor.
• 24 V DC power supply.
• 2 safety inputs IS1-IS2.
• 2 safety outputs OS1-OS2.
• 1 signalling output O3.
• 1 programming input I3.
• PNP switching output.
• Non-contact RFID operating principle.
• Redundant electronic architecture.
• 10 m PVC connection cable.
• Right-hand connection exit.
• Technopolymer housing for industrial applications.
• Integrated status indication.
• -25 °C to +70 °C operating temperature range.
• IP67 / IP69K protection.
• Supplied without actuator for flexible actuator selection.

Reliable RFID Safety Monitoring for Industrial Machinery

RFID safety sensors such as the Pizzato ST D series monitor the position of movable machine guards without requiring physical contact between the sensor and actuator. A compatible coded RFID actuator is detected electronically, allowing the machine safety system to determine whether the associated protective guard is correctly positioned before hazardous machine functions are permitted.

The non-contact operating principle is particularly valuable on machinery with frequent operating cycles because there are no mechanically operated switching contacts between the sensor and actuator. The ST D series also supports connection of compatible sensors in series, providing an efficient solution for machinery with multiple guarded access points while supporting high safety performance levels.

Typical Applications

• Industrial machine guard and access door monitoring.
• Packaging and production machinery.
• Robotic cells and automated manufacturing systems.
• Material handling and conveyor systems.
• Machine tools and processing equipment.
• Safety enclosures and protective guarding.
• Assembly and automated production lines.
• OEM machinery and industrial automation systems.