Why Choose the Pizzato NSM4ZZ1SMK-F41 Safety Locking Switch?
The Pizzato NSM4ZZ1SMK-F41 is a high-reliability RFID safety interlock switch with solenoid locking designed for machine guarding applications in industrial automation systems. It belongs to the established Pizzato NS series safety locking switch family, engineered to provide secure guard monitoring, actuator recognition, and controlled access in demanding industrial environments.
This device ensures that machine guards remain locked during hazardous operation and only release when safe conditions are confirmed. Its F41 high-level coded RFID system provides a uniquely paired actuator for maximum anti-tamper protection, reducing the risk of bypass or substitution. The integrated solenoid locking mechanism ensures controlled and reliable access to protected machine areas.
The NSM4ZZ1SMK-F41 is widely used in OEM machinery, robotics systems, packaging equipment, and automated production lines where functional safety and compliance with ISO 14119 machine safety standards are required. It can be integrated into safety systems up to PL e / SIL 3 depending on system architecture.
This model belongs to the NS “M4 Mode 2” configuration, which uses an energised solenoid locking system (power-to-lock principle) with dual-channel safety monitoring. According to NS-series operating principles, Mode 2 devices keep safety outputs active when the actuator is inserted and the guard is correctly locked, enabling continuous monitoring and high diagnostic coverage in complex safety circuits. Based on Pizzato NS architecture, it supports series connection of multiple devices in safety chains. ([pizzato.com](https://www.pizzato.com/media/images/catalog/item/File/pdf/ZE_GCS06A24/ZE_GCS06A24-ENG_187-204.pdf?utm_source=chatgpt.com))
Key Advantages
- High-security F41 unique-coded RFID actuator system for maximum anti-tamper protection.
- Solenoid locking ensures guards remain secured during hazardous operation.
- Reliable actuator detection and continuous guard status monitoring.
- Designed for integration into PL e / SIL 3 safety systems (system dependent).
- Compact industrial design suitable for OEM machinery integration.
- Supports series connection in multi-device safety architectures.
Key Features
- Pizzato NS series safety locking switch.
- Model: NSM4ZZ1SMK-F41.
- RFID high-level coded actuator system (F41 unique coding).
- Solenoid locking mechanism (energised lock principle).
- Dual safety inputs (IS1–IS2).
- Dual safety outputs (OS1–OS2).
- Actuator presence and lock status monitoring outputs.
- M12 12-pin industrial connector interface.
- IP67 / IP69K protection rating for harsh environments. ([turn0search10])
The NSM4ZZ1SMK-F41 ensures that machine guards cannot be opened while hazardous motion is active. Its RFID-coded actuator prevents substitution, while the solenoid locking system ensures controlled access only under safe conditions, improving operator protection in automated industrial environments.
The NS series architecture supports integration into complex safety systems while maintaining high diagnostic coverage and safety integrity, making it suitable for advanced OEM machine safety applications.
Typical Applications
- Industrial machine guarding systems.
- Robotic safety cells.
- Automated production lines.
- Packaging and processing machinery.
- Conveyor safety doors and access panels.
- OEM machinery requiring reliable interlocking.
