Why Choose the Pizzato NSD4ST1DPK-F41 Safety Interlock Switch?
The Pizzato NSD4ST1DPK-F41 is a high-integrity RFID safety interlock switch with solenoid locking designed for advanced machine guarding applications in industrial automation systems. Manufactured by Pizzato Elettrica, it belongs to the NS series safety switch family used to ensure machinery only operates when protective guards are correctly closed and secured.
This device is typically installed on safety doors, hinged guards, sliding panels, and machine access points. It prevents hazardous machine operation while the guard is open, supporting compliance with EN ISO 14119 machine safety standards and modern functional safety requirements in industrial environments.
The NSD4ST1DPK-F41 uses a high-level coded F41 RFID actuator system, meaning it recognises only a single uniquely paired actuator for maximum anti-tamper protection and high safety integrity in demanding applications.
Key Advantages
- High-security RFID safety interlock with solenoid locking.
- F41 high-level coded actuator for maximum tamper resistance.
- Designed for industrial machine safety and automation systems.
- Reliable dual-channel safety outputs for safety PLC integration.
- Integrated monitoring of door position and lock status.
- Robust industrial construction for harsh environments.
Key Features
- Pizzato NS series safety interlock switch with locking function.
- Solenoid locking mechanism with fail-safe de-energised release principle.
- High-level coded RFID actuator system (F41 type).
- 2 safety outputs (OS1–OS2).
- Actuator insertion and lock status signalling outputs.
- DPK configuration variant (mechanical release / layout variant depending on model coding family).
- Industrial sealed housing for demanding environments.
Advanced Machine Guard Safety Control
The NSD4ST1DPK-F41 ensures machinery remains safely disabled whenever guards are open or not correctly secured. The solenoid locking mechanism prevents access until safe operating conditions are achieved, while the RFID system ensures only the correct F41-coded actuator can operate the switch.
This makes it suitable for high-security industrial environments where safety integrity, reliability, and tamper resistance are essential. It integrates with safety PLCs to provide real-time monitoring of guard status and locking condition, enabling controlled access to hazardous machinery.
Typical Applications
- Industrial automation production lines.
- Robotics safety cells and machine guarding systems.
- CNC machining centres and tooling equipment.
- Packaging and processing machinery.
- Material handling and conveyor systems.
- High-security safety doors and access panels.
