NS D4AZ1SA5-F40 Pizzato NS series safety locking switch, with actuator

Why Choose the Pizzato NSD4AZ1SA5-F40 Safety Locking Switch?

The Pizzato NSD4AZ1SA5-F40 is an advanced RFID safety interlock switch with guard locking designed for monitoring and securing movable guards on industrial machinery. Part of the Pizzato NS Safety Locking Switch series, it combines non-contact RFID actuator detection, electromagnetic guard locking and electronic safety monitoring in a robust solution for machine guarding and industrial safety circuits.

This model is supplied complete with the VN NS-F40 low-level coded RFID actuator. It uses operating principle D, meaning the actuator is locked when the electromagnet is de-energised, while Mode 1 operation provides active OS safety outputs when the guard is correctly locked. This configuration is particularly useful where access to hazardous machinery must remain prevented until the safety system permits release.

The NSD4AZ1SA5-F40 provides a maximum 2,100 N holding force and incorporates two IS1–IS2 safety inputs, two OS1–OS2 safety outputs and dedicated signalling and electromagnet-control connections. A pre-wired 5 m cable, front screwdriver-operated auxiliary release and IP67 / IP69K protection support straightforward installation and dependable service in demanding industrial environments.

Key Advantages

• Combines RFID guard monitoring and electromagnetic guard locking in one safety device.
• Supplied complete with a VN NS-F40 low-level coded RFID actuator.
• Maximum 2,100 N holding force provides secure retention of movable guards.
• Principle D locking retains the actuator while the electromagnet is de-energised.
• Dual safety inputs and safety outputs support integration into advanced machine safety circuits.
• Pre-wired 5 m cable simplifies connection to the machine safety system.
• IP67 / IP69K protection supports reliable operation in demanding industrial environments.

Key Features

• Pizzato NS Safety Locking Switch series.
• RFID safety interlock switch with electromagnetic guard locking.
• VN NS-F40 low-level coded RFID actuator included.
• Operating principle D: actuator locked with electromagnet de-energised.
• Mode 1: OS safety outputs active with the guard locked.
• 2,100 N maximum holding force.
• Two safety inputs: IS1 and IS2.
• Two safety outputs: OS1 and OS2.
• O3 signalling output for actuator-inserted status.
• O4 signalling output for actuator-locked status.
• Two electromagnet activation inputs: IE1 and IE2.
• I3 programming / reset input.
• Pre-wired 5 m cable.
• Front screwdriver-operated auxiliary release.
• Technopolymer housing with IP67 / IP69K protection.

Reliable RFID Guard Locking for Industrial Machinery

Safety interlock switches with guard locking are used where a movable guard must remain secured until hazardous machine conditions have ceased. The Pizzato NSD4AZ1SA5-F40 combines RFID-based actuator detection with monitored electromagnetic locking, allowing the safety control system to determine whether the guard is correctly positioned and securely retained before hazardous machine functions are permitted.

The included VN NS-F40 actuator uses low-level RFID coding and provides contactless guard detection without relying on conventional mechanical safety contacts. Dedicated safety, signalling and electromagnet-control circuits enable the NS switch to communicate guard and locking conditions to the machine safety system, while the pre-wired cable provides a practical connection method for fixed industrial installations.

Typical Applications

• Industrial machine guard doors and access panels.
• Robotic cells and automated manufacturing systems.
• Packaging and processing machinery.
• Machines with hazardous residual or run-down movement.
• Automated assembly and production lines.
• Conveyor and material handling equipment.
• OEM machinery and integrated industrial safety systems.