NS D4AZ1SRK-N112 Pizzato NS series safety switch with lock and integrated control devices

Why Choose the Pizzato NSD4AZ1SRK-N112 Safety Interlock Switch?

The Pizzato NSD4AZ1SRK-N112 is a high-reliability RFID safety interlock switch with integrated control device and guard locking, designed for industrial machine safety and operator control applications. Manufactured by Pizzato Elettrica, it ensures that machinery cannot operate unless the protective guard is correctly closed and securely locked.

This model belongs to the Pizzato NS series multifunction safety switches, combining RFID-coded actuator recognition, solenoid-based locking, and an integrated selector control device in a compact industrial housing. It is commonly used in OEM machinery where both safety interlocking and local control functions are required at the machine access point.

The NSD4AZ1SRK-N112 operates in a D working method configuration, meaning the actuator is locked with a de-energised solenoid and safety outputs are enabled only when the guard is correctly closed and secured. {index=1}

Key Advantages

• Integrated RFID safety interlock switch with guard locking.
• Built-in two-position selector switch for machine control.
• High-reliability actuator detection and locking feedback.
• Designed for OEM machinery and automation systems.
• Dual M12 connector system for simplified wiring.
• Reduces need for external selector switches in control panels.

Key Features

• Pizzato NS series safety interlock switch.
• Model: NSD4AZ1SRK-N112.
• RFID-coded actuator detection system.
• Integrated control device:
  • Black two-position selector switch (1NO)
• 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 + 5-pole axial configuration).

Integrated Machine Safety with Selector Control

The Pizzato NSD4AZ1SRK-N112 integrates a safety interlock switch with a built-in selector control, allowing operators to manage machine operating modes directly at the guard position. This reduces the need for separate control panel components and improves machine-side usability.

The RFID system ensures that only correctly coded actuators allow operation, while the solenoid locking mechanism prevents access during hazardous machine conditions. The integrated selector switch supports operational mode selection in automated systems.

Typical Applications

• Automated production and assembly systems.
• Industrial robotic safety enclosures.
• Packaging and processing machinery.
• Machine tools with mode selection at safety gates.
• OEM machine building and integration systems.
• Material handling and conveyor systems.