Why Choose the Pizzato NG 2D1D421A Safety Switch with Lock?
The Pizzato NG 2D1D421A is an NG series RFID safety switch with guard locking, designed for monitoring and securing movable guards, doors and access points on industrial machinery. It combines electronic actuator detection, safety outputs and high-force guard locking within a robust metal housing, with no integrated control devices on the cover.
This configuration uses Pizzato's D working method, meaning the actuator is locked while the solenoid is de-energised. It provides two IS1-IS2 safety inputs and two OS1-OS2 safety outputs, together with dedicated O3 and O4 signalling outputs for actuator-inserted and actuator-locked status.
The NG 2D1D421A uses safety-output activation mode 2, with the OS1-OS2 safety outputs active when the actuator is inserted. This base configuration is supplied without an actuator and without a connector, allowing the appropriate compatible NG actuator and connection arrangement to be selected for the machine application.
Key Advantages
- Combines electronic guard monitoring and guard locking in a robust industrial safety switch.
- D working method locks the actuator while the solenoid is de-energised.
- Mode 2 safety-output activation provides active OS1-OS2 outputs when the actuator is inserted.
- Two safety inputs and two safety outputs support integration into safety-related machine-control systems.
- Separate O3 and O4 signalling outputs provide actuator-inserted and actuator-locked status.
- Maximum 9750 N holding force supports robust industrial guard retention.
- IP67 and IP69K protection supports demanding industrial environments.
- Supplied without actuator, allowing a compatible NG actuator to be selected according to the required coding level.
Key Features
- Pizzato NG series RFID safety switch with guard locking.
- Actuator: not included.
- Maximum holding force: 9750 N.
- D working method with actuator locked by de-energised solenoid.
- Two safety inputs: IS1-IS2.
- Two safety outputs: OS1-OS2.
- Mode 2: safety outputs active with actuator inserted.
- O3 signalling output for actuator-inserted status.
- O4 signalling output for actuator-locked status.
- I4 or IE1-IE2 inputs for solenoid activation.
- I3 input for actuator programming / reset.
- No integrated control devices on the cover.
- Sealable auxiliary release device.
- Metal housing with rotating head.
- Three M20 × 1.5 threaded conduit entries.
RFID Guard Monitoring with Mode 2 Safety Outputs
The Pizzato NG series combines RFID-based electronic actuator recognition with electromechanical guard locking for safety-related machine guarding. The NG 2D1D421A is the actuator-free configuration, allowing either a compatible low- or high-coding-level NG actuator to be selected according to the requirements of the installation.
A key characteristic of the NG 2D1D421A is its Mode 2 safety-output logic. The OS1-OS2 safety outputs become active when the actuator is inserted, while the separate O3 and O4 signalling outputs communicate actuator insertion and locking status. This provides the machine-control system with distinct information about the condition of the guarded access point.
Typical Applications
- Industrial machine guard doors and access gates.
- Robotic cells and safeguarded automation areas.
- Automated manufacturing and assembly machinery.
- Packaging and processing equipment.
- Material handling and conveyor systems.
- Machine tools and automated production equipment.
- Machinery requiring high-force guard retention.
- Applications requiring electronic guard monitoring with separately selected actuator coding.
