NS D4AZ1SRK-N115 Pizzato NS series safety switch with lock and integrated control devices

Why Choose the Pizzato NSD4AZ1SRK-N115 Safety Interlock Switch?

The Pizzato NSD4AZ1SRK-N115 is a compact RFID safety interlock switch with guard locking and integrated dual control devices, designed for industrial machine safety applications requiring both secure access control and built-in operator interface functions. Manufactured by Pizzato Elettrica, it ensures 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 RFID actuator detection, solenoid-based locking, and an integrated dual illuminated pushbutton control unit in a single device. It is widely used in OEM machinery and automation systems where safety interlocking and operator commands must be available directly at the machine guard.

The NSD4AZ1SRK-N115 operates in a D working method configuration, meaning the actuator is locked using a de-energised solenoid and safety outputs are enabled only when the guard is correctly closed and secured. It features a two-device control layout integrated into the housing for simplified wiring and reduced external control panels. {index=1}

Key Advantages

• Integrated RFID safety interlock switch with guard locking.
• Built-in dual illuminated pushbutton operator interface.
• Reduces need for external control stations and wiring complexity.
• High-reliability actuator recognition and locking feedback.
• Designed for OEM machinery and industrial automation systems.
• Robust technopolymer housing for harsh industrial environments.

Key Features

• Pizzato NS series safety interlock switch.
• Model: NSD4AZ1SRK-N115.
• RFID-coded actuator detection system (high coding level).
• Integrated control devices:
  • White illuminated pushbutton (1NO, spring-return)
  • Blue illuminated pushbutton (1NO, spring-return)
• 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).
• Dual M12 connectors (12-pole + 8-pole axial configuration).

Integrated Machine Safety with Dual Operator Control

The Pizzato NSD4AZ1SRK-N115 integrates RFID-based guard locking with dual operator control buttons directly on the safety device. This allows machine operators to perform local commands without separate control panels, improving efficiency and reducing installation complexity.

The solenoid locking system prevents access during hazardous machine states, while the RFID actuator ensures correct alignment and identification. The integrated pushbuttons provide convenient local machine control at the point of access.

Typical Applications

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