ST DL420H2-D1T Pizzato ST D series safety sensor

Why Choose the Pizzato ST DL420H2-D1T ST D Series Safety Sensor?

The Pizzato ST DL420H2-D1T is an advanced RFID coded non-contact safety sensor with actuator designed for monitoring guards, doors and protective devices on industrial machinery. As part of the Pizzato ST D RFID Safety Sensor series, it combines electronic RFID actuator recognition with solid-state safety switching to provide reliable guard monitoring without the mechanical wear associated with conventional electromechanical safety switches.

The ST DL420H2-D1T provides two safety inputs IS1–IS2, two safety outputs OS1–OS2, one signalling output O3 and one programming input I3. This comprehensive input and output configuration supports integration into modern machine safety architectures, while the PNP switching outputs provide dependable electronic interfacing with compatible safety control equipment.

Operating from a 24 V DC supply, this model features a PUR cable and a technopolymer housing with the connection exiting from the left-hand side. The D1T configuration uses a high-coded RFID actuator with individually coded actuators, a 12 mm actuation distance and an actuator measuring 45 × 25 × 18 mm. With IP67 / IP69K protection and an operating temperature range of -25 °C to +70 °C, it is well suited to demanding industrial safety applications.

Key Advantages

• Non-contact RFID coded safety sensing technology minimises mechanical wear and maintenance.
• D1T high-coded RFID actuator with individually coded actuators provides enhanced protection against manipulation.
• Two safety inputs IS1–IS2 and two safety outputs OS1–OS2 support advanced machine safety architectures.
• Dedicated O3 signalling output and I3 programming input provide additional control and configuration flexibility.
• 12 mm actuation distance provides practical installation tolerance between sensor and actuator.
• IP67 / IP69K protection supports reliable operation in demanding industrial environments.

Key Features

• Pizzato ST D series RFID safety sensor.
• RFID coded non-contact switching technology.
• D1T high-coded, individually coded actuator.
• 12 mm actuation distance.
• Two safety inputs: IS1 and IS2.
• Two safety outputs: OS1 and OS2.
• One signalling output: O3.
• One programming input: I3.
• PNP switching outputs.
• 24 V DC power supply.
• Industrial PUR cable connection.
• Technopolymer housing with left-side connection exit.
• IP67 / IP69K ingress protection.
• Operating temperature range of -25 °C to +70 °C.
• Supports safety applications up to SIL 3 and PL e.

Reliable RFID Guard Monitoring for Industrial Automation

RFID safety sensors such as the Pizzato ST D series monitor movable guards without requiring physical contact between the sensor and actuator. When the correctly coded RFID actuator enters the sensor's operating zone, the electronic safety outputs communicate the guard condition to the associated safety control system, helping prevent hazardous machine operation when a monitored protective device is not correctly positioned.

The ST DL420H2-D1T combines high-coded RFID identification with dedicated safety inputs, safety outputs, signalling and programming functionality. Its non-contact design, robust PUR cable connection and IP67 / IP69K enclosure protection make it particularly suitable for high-cycle automated machinery and installations exposed to dust, moisture or intensive industrial cleaning.

Typical Applications

• Machine guard and safety-door monitoring.
• Industrial production and assembly machinery.
• Packaging and processing equipment.
• Automated manufacturing cells and robotic systems.
• Conveyors and material handling equipment.
• Machinery requiring high-coded RFID guard monitoring and advanced safety integration.