Why Choose the Pizzato NSD4SR1SPK-F41 Safety Interlock Switch?
The Pizzato NSD4SR1SPK-F41 is a high-performance RFID safety interlock switch with integrated guard locking designed for advanced industrial machine safety applications. As part of the robust Pizzato NS NS-series safety locking switch family, it provides secure actuator recognition, reliable solenoid locking, and high-integrity safety signal feedback for modern automation systems.
This model features a de-energised solenoid locking system combined with high-level RFID coding (F41), ensuring strong protection against tampering and guaranteeing that machine guards remain securely locked during hazardous operation. It is engineered for safety-critical environments where compliance with EN ISO 14119 and high functional safety performance are required.
With its rugged technopolymer housing, compact industrial design, and IP67/IP69K protection rating, the NSD4SR1SPK-F41 is widely used in robotic cells, packaging machinery, conveyors, and OEM automation systems requiring certified guard locking and safety monitoring.
Key Advantages
- High-security RFID-coded actuator system (F41 high coding level) for strong anti-tamper protection.
- Solenoid guard locking with fail-safe de-energised release principle.
- Dual-channel safety outputs (OS1/OS2) for redundant monitoring of guard status.
- Integrated diagnostic outputs for actuator insertion and lock status (O3/O4).
- Complies with EN ISO 14119 machine safety standards. ([pizzato.com](https://www.pizzato.com/en/catalog/NSD4SR1SMKF41.html))
- Suitable for integration into high-performance PL e / SIL 3 safety systems.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSD4SR1SPK-F41.
- RFID-coded actuator recognition (F41 high coding level).
- De-energised solenoid guard locking (fail-safe design).
- M12 12-pole industrial connector interface.
- Safety outputs OS1/OS2 with diagnostic outputs O3/O4.
- Integrated auxiliary release for maintenance and emergency access.
Reliable Machine Guarding and Safety Control
The Pizzato NSD4SR1SPK-F41 ensures machinery only operates when protective guards are correctly closed and locked. When the RFID-coded actuator is detected and locking is engaged, the safety outputs enable 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 diagnostics monitor actuator status and lock condition, enabling integration into PLC-based safety architectures in industrial automation systems.
Typical Applications
- Robotic safety cell enclosures.
- Industrial automation machinery.
- Packaging and production systems.
- Conveyor and material handling systems.
- OEM machine building applications.
- Safety-critical industrial environments.
