NS D4AZ1STK-N003 Pizzato NS series safety switch with lock and integrated control devices

Why Choose the Pizzato NSD4AZ1STK-N003 Safety Interlock Switch?

The Pizzato NSD4AZ1STK-N003 is a compact RFID safety interlock switch with integrated control devices and guard locking, designed for industrial machine safety applications where reliable access control and operator interface functions are required in a single device. Manufactured by Pizzato Elettrica, it ensures that machinery remains safely locked until all safety conditions are satisfied.

This model belongs to the Pizzato NS series of multifunction safety switches, combining high-coded actuator recognition, solenoid-based guard locking, and an integrated three-device control station in a robust industrial housing. It is widely used in OEM machinery, robotics, and automated production systems where safety interlocking and operator control must be available directly at the machine guard.

The NSD4AZ1STK-N003 operates in a D working method configuration, meaning the actuator is locked using a de-energised solenoid and the safety outputs are enabled only when the guard is correctly closed and secured. It integrates safety switching and operator controls to reduce external wiring and control panel requirements. {index=1}

Key Advantages

• Integrated RFID safety interlock switch with guard locking.
• Built-in three-device operator control station.
• Reduces external pushbuttons and wiring complexity.
• High-reliability actuator detection and locking feedback.
• Designed for OEM machinery and industrial automation systems.
• Compact housing suitable for machine-side installation.

Key Features

• Pizzato NS series safety interlock switch.
• Model: NSD4AZ1STK-N003.
• RFID-coded actuator detection system (high coding level).
• Integrated control devices:
  • White illuminated pushbutton (1NO, spring-return)
  • Black pushbutton (1NO, spring-return)
  • Red emergency stop button (2NC, twist-to-release)
• 2 safety inputs (IS1–IS2) and 2 safety outputs (OS1–OS2).
• 2 solenoid activation inputs (IE1–IE2).
• 1 programming/reset input (I3).
• Signal outputs: O3 (actuator inserted), O4 (actuator locked).
• M23 connector, 19-pole connection system.

Integrated Machine Safety and Operator Control

The Pizzato NSD4AZ1STK-N003 integrates RFID-based guard locking with a full operator control station directly on the safety switch body. This allows operators to control machine functions at the access point while maintaining strict safety interlocking.

The solenoid locking system prevents access during hazardous machine cycles, while the RFID actuator ensures correct alignment and identification. The integrated pushbuttons and emergency stop provide a complete local safety and control interface.

Typical Applications

• Industrial robotic safety cells.
• Automated production lines.
• Packaging and processing machinery.
• Machine tools with integrated operator panels.
• OEM machine building and automation systems.
• Material handling and conveyor systems.