NS D4AZ1SRK-N113 Pizzato NS series safety switch with lock and integrated control devices

Why Choose the Pizzato NSD4AZ1SRK-N113 Safety Interlock Switch?

The Pizzato NSD4AZ1SRK-N113 is a robust RFID safety interlock switch with integrated control devices and guard locking, designed for industrial machine safety applications where reliable access control and local operator functions are required. Manufactured by Pizzato Elettrica, it ensures machinery remains safely locked until the correct operating conditions are met.

This model belongs to the Pizzato NS series of multifunction safety switches, combining RFID-coded actuator detection, solenoid-based locking, and an integrated dual-control device interface in a compact industrial housing. It is widely used in OEM machinery and automation systems where safety interlocking and operator control must be integrated at the machine guard.

The NSD4AZ1SRK-N113 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 properly closed and secured. It is part of the NS “SRK” integrated control series designed for simplified wiring and reduced external control components. {index=1}

Key Advantages

• Integrated RFID safety interlock switch with guard locking.
• Built-in dual operator control device system.
• High-reliability actuator detection and lock monitoring.
• Designed for OEM machinery and industrial automation systems.
• Reduced wiring thanks to integrated control architecture.
• Robust industrial housing for harsh environments.

Key Features

• Pizzato NS series safety interlock switch.
• Model: NSD4AZ1SRK-N113.
• RFID-coded actuator detection system.
• Integrated control devices:
  • White illuminated 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).
• Dual M12 connectors (12-pole + 8-pole axial configuration).

Integrated Machine Safety with Operator Control

The Pizzato NSD4AZ1SRK-N113 integrates safety interlocking with local operator control directly at the machine guard. This reduces the need for external pushbutton stations and simplifies installation while maintaining high safety integrity.

The RFID system ensures correct actuator identification, while the solenoid locking mechanism prevents access during hazardous machine conditions. The integrated pushbutton and emergency stop provide immediate local control and shutdown capability.

Typical Applications

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