Why Choose the Pizzato NSD4ST1DMK-F41 Safety Interlock Switch?
The Pizzato NSD4ST1DMK-F41 is a high-performance RFID safety interlock switch with solenoid locking, designed for advanced machine guarding applications in industrial automation systems. Manufactured by Pizzato Elettrica, it is part of the NS series safety interlock family used to ensure machines remain safely isolated when guards are open.
This device is commonly 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 safety standards and modern industrial safety requirements.
The NSD4ST1DMK-F41 uses a high-level coded F41 RFID actuator system, meaning it recognises only a uniquely paired actuator, providing maximum protection against tampering and unauthorized access in high-risk environments.
Key Advantages
- High-security RFID safety interlock with solenoid locking.
- F41 high-level coded actuator for maximum tamper resistance.
- Designed for industrial machine safety systems and automation cells.
- Reliable dual-channel safety outputs for 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) for safety PLC integration.
- Actuator insertion and lock status signalling outputs.
- DMK configuration variant (mechanical layout / release option depending on model code family).
- Industrial sealed housing for demanding environments.
Advanced Machine Guard Safety Control
The NSD4ST1DMK-F41 ensures machinery remains safely disabled whenever guards are open or not correctly secured. The solenoid locking mechanism prevents access until safe conditions are achieved, while the RFID system ensures only the correct F41-coded actuator can operate the switch.
This makes it suitable for high-integrity industrial environments where safety, reliability, and tamper resistance are essential. It integrates with safety PLCs to provide real-time monitoring of guard status and locking condition, supporting both access control and machine safety interlocking.
Typical Applications
- Industrial automation production lines.
- Robotics safety cells and guarded machinery.
- CNC machining centres and tooling systems.
- Packaging and processing machinery.
- Material handling and conveyor systems.
- High-security safety doors and access panels.
