Why Choose the Pizzato NSL4SE1SMK-F41 Safety Interlock Switch?
The Pizzato NSL4SE1SMK-F41 is a high-security RFID safety interlock switch with guard locking designed for demanding industrial machine safety applications. As part of the advanced Pizzato NS-series safety locking switch family, it provides secure actuator recognition, robust solenoid locking, and high-integrity safety feedback for automated systems.
This model features a de-energised solenoid locking mechanism combined with high-level RFID coding (F41), ensuring strong resistance against tampering while keeping machine guards securely locked during hazardous operation. It is engineered for safety-critical industrial environments where compliance with EN ISO 14119 and high performance reliability are required.
With its compact technopolymer housing, IP67/IP69K protection, and industrial-grade design, the NSL4SE1SMK-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 and lock status (O3/O4).
- High mechanical holding force up to industrial safety standards.
- Designed for integration into PL e / SIL 3 safety architectures in automation systems.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSL4SE1SMK-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 signals O3/O4.
- Integrated auxiliary release for maintenance and emergency access.
Reliable Machine Guarding and Safety Control
The Pizzato NSL4SE1SMK-F41 ensures machinery only operates when protective guards are securely 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 seamless integration into PLC-based safety systems in industrial automation.
Typical Applications
- Robotic safety cell enclosures.
- Industrial automation machinery.
- Packaging and production systems.
- Conveyor and material handling equipment.
- OEM machine building applications.
- Safety-critical industrial environments.
