Why Choose the Pizzato NSD4ST1SPK-F41 Safety Interlock Switch?
The Pizzato NSD4ST1SPK-F41 is a high-security RFID safety interlock switch with guard locking designed for industrial machine safety applications requiring reliable access control, robust door monitoring, and strong anti-tamper protection. It belongs to the advanced Pizzato NS NS-series safety locking switch family, widely deployed in OEM machinery, robotics, and automated production environments.
This model uses a de-energised solenoid locking mechanism combined with high-level RFID coding (F41). The F41 coding provides a uniquely paired actuator system, meaning each switch only recognises its assigned actuator, significantly increasing protection against bypassing or unintended actuation in safety-critical installations.
With its compact reinforced technopolymer housing, industrial sealing, and IP67/IP69K protection rating, the NSD4ST1SPK-F41 is suitable for robotic cells, packaging machinery, conveyors, and OEM equipment where dependable guard locking and high-integrity safety interlocking are required.
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 protection rating IP67 / IP69K for harsh industrial environments.
- Designed for integration into safety PLC and industrial automation systems.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSD4ST1SPK-F41.
- RFID high coding actuator recognition (F41 unique pairing system).
- De-energised solenoid guard locking (fail-safe design).
- M12 industrial connector interface (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 NSD4ST1SPK-F41 ensures machinery only operates when protective guards are correctly closed and securely locked. When the uniquely coded actuator is engaged and the locking system is active, 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 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.
