Why Choose the Pizzato NSH4ZZ1SMK-F41 Safety Locking Switch?
The Pizzato NSH4ZZ1SMK-F41 is a high-performance RFID safety interlock switch with solenoid locking designed for advanced machine guarding in industrial automation systems. It belongs to the proven Pizzato NS series safety locking switch family, engineered to deliver secure guard monitoring, actuator identification, and controlled access in demanding industrial environments.
This device ensures that protective guards remain locked during hazardous machine operation and only release when safe conditions are confirmed. Its F41 high-level coded RFID system provides a unique actuator pairing, delivering maximum anti-tamper protection and reducing the risk of unauthorized bypass. The integrated solenoid locking mechanism provides reliable and controlled access to machine doors and safety enclosures.
The NSH4ZZ1SMK-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 overall system architecture.
This model belongs to the NS “H4 mode 2” configuration, where the device operates with an energised solenoid locking system and supports dual-channel safety outputs (OS1/OS2). In this operating mode, safety outputs are active with the actuator inserted, and guard locking is managed via controlled solenoid energisation. This architecture is designed for high-diagnostic industrial safety systems requiring flexible guard control and continuous monitoring.
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 with industrial-grade safety monitoring.
- Designed for integration into PL e / SIL 3 safety systems (system dependent).
- Robust technopolymer housing for harsh industrial environments.
- Supports series connection in complex safety architectures.
Key Features
- Pizzato NS series safety locking switch.
- Model: NSH4ZZ1SMK-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).
- M12 12-pin industrial connector interface.
- IP67 / IP69K protection rating for harsh environments.
The NSH4ZZ1SMK-F41 ensures that machine guards cannot be opened while hazardous motion is active. Its RFID system prevents actuator substitution, while the solenoid locking mechanism ensures controlled access only under safe conditions, improving operator protection in automated industrial environments.
The NS series architecture supports series connection of multiple devices while maintaining high diagnostic coverage and safety integrity, making it suitable for complex industrial machine safety systems.
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 high-security interlocking.
