NG 2D5D421E-F31 Pizzato NG series safety switch with lock and integrated control devices, with actuator

Why Choose the Pizzato NG 2D5D421E-F31 Safety Switch with Lock?

The Pizzato NG 2D5D421E-F31 is an advanced RFID safety switch with guard locking and integrated control devices designed for monitoring and securing movable guards on industrial machinery. Part of the Pizzato NG series, it combines electronically coded actuator detection, electromagnetic guard locking and operator controls in a robust metal housing.

This configuration is supplied with the VN NG-F31 high-coding-level actuator, providing enhanced resistance to actuator substitution in safety-related guard monitoring applications. The switch uses Principle D operation, meaning the actuator is locked when the electromagnet is de-energised, and provides redundant safety inputs and outputs for integration with safety relays and safety PLCs.

The NG 2D5D421E-F31 incorporates two integrated control devices: a white pushbutton and a black pushbutton, each with 1NO + 1NC contacts. Its metal housing, three M20 × 1.5 threaded cable entries, orientable head with key release and IP65 protection rating provide a versatile solution for guarded machinery and automated production equipment.

Key Advantages

• Combines RFID guard monitoring, electromagnetic locking and operator controls in one industrial safety device.
• Supplied with a VN NG-F31 high-coding-level RFID actuator for enhanced anti-tampering protection.
• Principle D guard locking keeps the actuator locked while the electromagnet is de-energised.
• Two safety inputs and two safety outputs support integration with modern machine safety systems.
• Dedicated signalling outputs provide information for actuator inserted and actuator locked states.
• Robust metal housing with IP65 protection for demanding industrial environments.

Key Features

• Pizzato NG series safety switch with guard locking.
• Supplied complete with VN NG-F31 high-coding-level actuator.
• Two integrated operator control devices.
• White pushbutton with 1NO + 1NC contacts.
• Black pushbutton with 1NO + 1NC contacts.
• 2 safety inputs IS1–IS2 and 2 safety outputs OS1–OS2.
• Signalling output O3 for actuator inserted and O4 for actuator locked.
• Electromagnet activation inputs I4 or IE1–IE2.
• Actuator programming/reset input I3.
• Mode 2 safety-output activation with outputs active when the actuator is inserted.
• Orientable head with key-operated release.
• Three M20 × 1.5 threaded cable entries.

Reliable Guard Monitoring for Industrial Machinery

The Pizzato NG series combines coded actuator detection and guard locking to help ensure access to hazardous machine areas is controlled according to the machine safety system. The high-coding-level RFID actuator enables dependable guard identification while reducing the possibility of bypassing the protective device using an unauthorised actuator.

The NG 2D5D421E-F31 also integrates operator controls directly into the safety-switch assembly, reducing the need for separate control stations around the guard. Its redundant safety channels and dedicated status outputs enable straightforward connection to safety PLCs, safety relays and machine automation systems.

Typical Applications

• Guard doors on automated industrial machinery.
• Robotic cells and automated assembly systems.
• Packaging and processing machinery.
• Conveyor and material handling equipment.
• Machine tools and manufacturing equipment.
• Production lines requiring coded guard monitoring and locking.