NS D4AZ1SA5-F41 Pizzato NS series safety locking switch, with actuator

Why Choose the Pizzato NSD4AZ1SA5-F41 Safety Locking Switch?

The Pizzato NSD4AZ1SA5-F41 is a high-performance RFID safety interlock switch with solenoid locking designed for machine guarding applications in industrial automation systems. It is part of the advanced Pizzato NS series safety locking switch family, built to ensure secure access control, reliable guard monitoring, and actuator identification in high-risk 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 uses a uniquely paired actuator, providing strong anti-tamper protection and resistance to substitution or bypass attempts. The integrated solenoid locking mechanism delivers precise and controlled access to protected machinery areas.

The NSD4AZ1SA5-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 “D4 configuration” family, typically featuring an energised solenoid locking system (power-to-lock principle) combined with dual-channel safety monitoring architecture. Based on Pizzato NS-series design principles, it supports reliable actuator detection, guard status feedback, and integration into complex safety circuits with multiple interlocked devices. The NS series also supports series connection of multiple switches (up to 32 devices in a safety chain) while maintaining high diagnostic coverage and safety integrity. ([Pizzato NS series documentation](https://www.pizzato.com/media/images/catalog/item/File/pdf/ZE_GCS06A24/ZE_GCS06A24-ENG_187-204.pdf?utm_source=chatgpt.com), [turn0search12])

Key Advantages

• High-security F41 uniquely 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).
• Rugged industrial housing for harsh automation environments.
• Supports series connection in complex machine safety architectures.

Key Features

• Pizzato NS series safety locking switch.
• Model: NSD4AZ1SA5-F41.
• RFID high-level coded actuator system (F41 unique coding).
• Solenoid locking mechanism (power-to-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. ([turn0search3])

Reliable Machine Safety Performance

The NSD4AZ1SA5-F41 ensures that machine guards cannot be opened while hazardous motion is active. Its RFID-coded actuator system reduces the risk of substitution, while the solenoid locking mechanism ensures controlled access only under safe conditions, improving operator protection in automated industrial environments.

The NS series architecture is designed for 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 high-integrity interlocking.