Why Choose the Pizzato NSD4ST1SMK-F41 Safety Interlock Switch?
The Pizzato NSD4ST1SMK-F41 is a high-integrity RFID safety interlock switch with guard locking designed for industrial machine safety applications requiring secure access control, reliable door monitoring, and enhanced anti-tamper protection. It belongs to the advanced Pizzato NS NS-series safety locking switch family, widely used in robotics, OEM machinery, and automated production systems.
This model operates using a de-energised solenoid locking mechanism combined with high-level RFID coding (F41). Unlike low-coded variants, F41 uses unique actuator pairing, meaning each switch is matched to a specific actuator, significantly improving protection against bypassing or unintended actuation in safety-critical environments.
With its compact reinforced technopolymer housing, robust sealing, and IP67/IP69K protection rating, the NSD4ST1SMK-F41 is ideal for robotic cells, packaging machinery, conveyors, and OEM equipment where dependable guard locking and high-security interlocking are required in demanding industrial conditions.
Key Advantages
- High-level RFID coding (F41) for unique actuator pairing and strong anti-tamper protection.
- 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).
- High mechanical holding force up to approx. 2100 N (application dependent).
- Designed for integration into safety PLC and industrial automation systems.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSD4ST1SMK-F41.
- RFID high coding actuator recognition (F41 unique pairing system).
- De-energised solenoid guard locking (fail-safe design).
- M12 industrial connector interface (12-pin typical NS architecture).
- Safety outputs OS1/OS2 with diagnostic signals O3/O4.
- Auxiliary release for maintenance and emergency access.
Reliable Machine Guarding and Safety Control
The Pizzato NSD4ST1SMK-F41 ensures machinery only operates when protective guards are correctly closed and securely locked. When the uniquely coded actuator is detected and the locking system 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 monitoring of actuator and lock status ensures reliable integration into PLC-based safety architectures used in modern industrial automation systems.
Typical Applications
- Industrial automation machinery.
- Robotic safety enclosures.
- Packaging and production systems.
- Conveyor and material handling systems.
- OEM machine building applications.
- High-security machine guarding systems.
