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ST HE420N2-H1TF Pizzato ST H series safety sensor
Pizzato STHE420N2-H1TF RFID safety interlock sensor with fixed cable connection and advanced safety I/O architecture for industrial machine guarding systems.
£122.79
Why Choose the Pizzato STHE420N2-H1TF Safety Interlock Sensor?
The Pizzato STHE420N2-H1TF is a high-performance RFID safety interlock sensor engineered for machine guarding, access control, and advanced industrial automation safety systems. As part of the reliable Pizzato ST H series safety sensor platform, it ensures secure non-contact monitoring of safety doors and protective guards in demanding environments.
This model features high-level coded RFID actuator recognition (H1TF logic) combined with an advanced safety I/O architecture, enabling enhanced monitoring for complex machine safety circuits. It is widely used in OEM machinery, robotics, and automated production lines where compliance with PL e (ISO 13849-1) and SIL 3 (IEC 61508) is required.
The STHE420N2-H1TF is equipped with an integrated N2 fixed cable connection, allowing direct and secure wiring into control systems. Its non-contact RFID sensing eliminates mechanical wear, providing long service life and consistent performance in high-cycle industrial applications. {index=1}
Key Advantages
- High-reliability RFID-coded safety interlock sensor.
- Expanded safety architecture for complex automation systems.
- Non-contact operation reduces wear and maintenance.
- High coding level actuator for improved tamper resistance.
- Direct wiring via integrated N2 fixed cable.
- Designed for industrial automation and safety-critical environments.
Key Features
- Pizzato ST H series RFID safety sensor.
- Model: STHE420N2-H1TF.
- RFID-coded actuator detection system.
- 2 safety outputs (OS1–OS2).
- 2 safety inputs (IS1–IS2).
- 1 signalling output (O3).
- 1 programming input (I3).
- Actuation distance up to approx. 11 mm.
- Integrated N2 fixed cable connection.
- 24 V DC supply voltage.
- IP67 / IP69K protection rating.
Advanced Machine Safety with RFID Technology
The Pizzato STHE420N2-H1TF uses RFID-coded actuator recognition to ensure only authorised actuators can enable machine operation. Its extended I/O structure allows integration into more complex safety circuits, supporting modern industrial automation requirements.
According to official Pizzato documentation, the 420 N2 variant belongs to the expanded-function models of the ST H series, offering additional safety inputs and programmable logic capabilities for advanced machine safety applications.
The ST H series is engineered for harsh industrial environments, with IP67/IP69K protection ensuring reliable operation in robotics, packaging machinery, and automated production systems.
Typical Applications
- Industrial machine guarding systems.
- Automated production lines with advanced safety logic.
- Robotics safety enclosures.
- CNC machinery access control.
- Packaging and processing equipment.
- OEM automation systems.
Technical Specifications
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| Cable Length (m) | 2 m | |
|---|---|---|
| Product Series | Pizzato ST H (RFID) | |
| Sensing Principle | RFID (coded) | |
| Coding Level | High (unique) | |
| Contacts | 2 safety outputs (OSSD) + 1 signalling | |
| Supplied As | Sensor + actuator kit | |
| Connection | Integrated cable | |
| Voltage | 24 V | |
| IP Rating | IP67 | |
| Series | ST H RFID Safety Sensor Series | |
| Product type | Electronic safety interlock sensor | |
| Supply voltage | 24 V DC | |
| Safety outputs | 2 (OS1–OS2) | |
| Safety inputs | 2 (IS1–IS2) | |
| Signalling output | 1 (O3) | |
| Programming input | 1 (I3) | |
| Actuation distance | approx. 11 mm | |
| Connection type | Integrated N2 fixed cable | |
| Protection rating | IP67 / IP69K | |
| Operating temperature | -25°C to +70°C | |
| Housing type | Technopolymer | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato STHE420N2-H1TF used for?
It is used to monitor safety guards and manage advanced safety logic in industrial automation systems.
What does N2 mean in this model?
N2 indicates a fixed cable connection designed for direct wiring into machine control systems.
How is it different from STHE310 models?
The STHE420N2-H1TF includes additional safety inputs and programmable logic for more complex safety architectures.
What is the actuation distance?
The sensor supports an actuation distance of approximately 11 mm.
What protection rating does it have?
It is rated IP67 / IP69K for harsh industrial environments.
Trusted in Industrial Machine Safety Worldwide
Pizzato ST H series RFID safety sensors are widely used in industrial automation to deliver reliable non-contact guarding, advanced safety control, and compliance with international functional safety standards.
