Why Choose the Pizzato NSH4ZZ1SPK-F41 Safety Locking Switch?
The Pizzato NSH4ZZ1SPK-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 advanced Pizzato NS series safety locking switch family, engineered to provide secure guard monitoring, actuator identification, and controlled access in high-risk 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 uniquely paired actuator, delivering strong anti-tamper protection and preventing unauthorized bypass attempts. The integrated solenoid locking mechanism ensures reliable and controlled access to machine doors and safety enclosures.
The NSH4ZZ1SPK-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 the overall system architecture.
This model belongs to the NS “H4 Mode 2” configuration, which uses an energised solenoid locking system (power-to-lock principle). According to NS series architecture, Mode 2 operation keeps both safety outputs (OS1/OS2) active when the actuator is inserted, enabling continuous guard monitoring while the lock is controlled by solenoid energisation. This allows reliable safety control in complex industrial systems with high diagnostic coverage.
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 safety monitoring.
- Designed for integration into PL e / SIL 3 safety systems (system dependent).
- Robust industrial housing for harsh environments.
- Supports series connection in complex machine safety architectures.
Key Features
- Pizzato NS series safety locking switch.
- Model: NSH4ZZ1SPK-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 industrial environments.
The NSH4ZZ1SPK-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 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.
