NG 2D5D421A-F31 Pizzato NG series safety switch with lock, with actuator

Why Choose the Pizzato NG 2D5D421A-F31 Safety Switch with Lock?

The Pizzato NG 2D5D421A-F31 is an NG series RFID safety switch with guard locking and high-coded actuator designed for reliable monitoring of movable guards on industrial machinery. It combines electronic actuator detection with a high-strength mechanical locking system, making it suitable for automated equipment where controlled access and dependable guard monitoring are required.

This exact configuration uses Pizzato's D working method, meaning the actuator is locked when the solenoid is de-energised. The orientable head incorporates a key-operated auxiliary release, while the robust metal housing provides three M20 × 1.5 threaded conduit entries and protection to IP67 and IP69K.

The NG 2D5D421A-F31 is supplied complete with the VN NG-F31 high-coding-level actuator. It operates in Mode 2, where the OS1 and OS2 safety outputs are active when the actuator is inserted, and also provides separate O3 and O4 signalling outputs for actuator-inserted and actuator-locked status.

Key Advantages

• Combines RFID actuator monitoring and high-strength guard locking in one safety device.
• Supplied complete with the VN NG-F31 high-coded actuator.
• High 9,750 N maximum holding force for robust guard retention.
• Mode 2 operation provides safety outputs active when the actuator is inserted.
• De-energised-to-lock working principle supports controlled machinery access.
• Two safety inputs and two electronic safety outputs for integration with compatible safety controllers.
• Separate signalling outputs indicate actuator insertion and locking status.
• IP67 and IP69K protection supports demanding industrial environments.

Key Features

• Pizzato NG series RFID safety switch with lock.
• Cover configuration: No integrated control device.
• D working method: actuator locked with de-energised solenoid.
• Rotating head with key-operated lock auxiliary release device.
• 2 safety inputs: IS1 and IS2.
• 2 safety outputs: OS1 and OS2.
• O3 signalling output: actuator inserted.
• O4 signalling output: actuator locked.
• I4 or IE1-IE2 inputs for solenoid activation.
• I3 input for actuator programming / reset.
• Mode 2: safety outputs active with actuator inserted.
• Supplied with VN NG-F31 high-coding-level actuator.
• Metal housing with three M20 × 1.5 threaded conduit entries.
• Without connector for field wiring.

Reliable RFID Guard Monitoring and Locking

The Pizzato NG platform uses RFID technology to identify the associated actuator while providing electronic safety outputs for integration with machine safety systems. The supplied VN NG-F31 actuator has a high coding level, with an individually coded association between the actuator and safety switch to support robust guard identification.

For the NG 2D5D421A-F31, Mode 2 means the OS1 and OS2 safety outputs are active when the actuator is inserted. Separate O3 and O4 outputs allow the control system to distinguish between actuator insertion and confirmed locking, while the 9,750 N locking force provides strong mechanical retention of the protected guard.

Typical Applications

• Industrial machine guard doors and access gates.
• Robotic cells and automated manufacturing systems.
• Packaging and processing machinery.
• Automated assembly and production lines.
• Machine tools and manufacturing equipment.
• Material handling and conveyor systems.
• OEM machinery requiring RFID guard monitoring and high-strength locking.