Why Choose the Pizzato NSD4ST1SA5-F40 Safety Interlock Switch?
The Pizzato NSD4ST1SA5-F40 is a compact and reliable RFID safety interlock switch with guard locking designed for industrial machine safety applications requiring controlled access, dependable guard monitoring, and consistent safety feedback. It belongs to the proven Pizzato NS NS-series safety locking switch family, widely used in automation systems and OEM machinery.
This model operates using a de-energised solenoid locking mechanism combined with low-level RFID coding (F40), meaning the switch can recognise any actuator within the same F40 coding family. This makes it ideal for general machine safety applications where flexibility and ease of replacement are important while still maintaining compliant guard control under EN ISO 14119.
With its reinforced technopolymer housing, compact industrial design, and IP67/IP69K protection rating, the NSD4ST1SA5-F40 is suitable for robotic cells, packaging machinery, conveyors, and industrial automation systems requiring robust guard locking and safety interlocking performance.
Key Advantages
- Low-level RFID coding (F40) allows flexible actuator compatibility within the same family.
- Solenoid guard locking with fail-safe de-energised release principle.
- Dual safety outputs (OS1/OS2) for redundant guard status monitoring.
- Integrated diagnostic outputs for actuator and lock status (O3/O4).
- Designed for integration into PL e / SIL safety-rated industrial systems.
- Suitable for series connection in safety chains for complex machinery layouts.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSD4ST1SA5-F40.
- RFID low coding actuator recognition (F40).
- De-energised solenoid guard locking (fail-safe design).
- M12 12-pole industrial connector interface (variant dependent).
- Safety outputs OS1/OS2 with diagnostic signals O3/O4.
- Auxiliary release function for maintenance and emergency access.
Reliable Machine Guarding and Safety Control
The Pizzato NSD4ST1SA5-F40 ensures machinery only operates when protective guards are correctly closed and safely monitored. When the actuator is detected and the locking system is engaged, the safety outputs allow controlled machine operation under safe conditions.
If the guard is opened or the locking condition is removed, the system triggers an immediate safe stop. Continuous monitoring of actuator and lock status ensures reliable integration into PLC-based safety architectures used in industrial automation environments.
Typical Applications
- Industrial automation machinery.
- Robotic safety enclosures.
- Packaging and production systems.
- Conveyor and material handling systems.
- OEM machine building applications.
- General machine safety guarding systems.
