Why Choose the Pizzato NSD4CE1SRK-N246 Safety Interlock Switch?
The Pizzato NSD4CE1SRK-N246 is an NS series RFID safety switch with guard locking and integrated control devices, designed for monitoring and controlling access to hazardous areas of industrial machinery. It combines contactless RFID guard detection, electromagnetic locking, electronic safety monitoring and four operator-control devices in a single robust assembly.
This configuration uses the D working method, with the actuator locked while the electromagnet is de-energised, and operates in Mode 1, where the OS safety outputs are active when the guard is locked. The switch is supplied without an actuator, allowing a compatible Pizzato NS RFID actuator to be selected separately for the machine application.
The NSD4CE1SRK-N246 incorporates two IS1–IS2 safety inputs, two OS1–OS2 safety outputs, dedicated O3 and O4 status outputs, IE1–IE2 electromagnet activation inputs and an I3 programming/reset input. Four integrated controls comprise blue, black and white 1NO pushbuttons plus a red emergency-stop button with two NC contacts and turn-to-release operation, providing a comprehensive guard-locking and local-control solution.
Key Advantages
- Combines RFID guard monitoring, electromagnetic locking and four operator controls in one assembly.
- D working method retains the actuator while the electromagnet is de-energised.
- Mode 1 operation provides active OS safety outputs when the guard is locked.
- Maximum 2,100 N actuator holding force provides robust guard retention.
- Integrated red emergency-stop control with 2NC contacts provides an additional local safety-control function.
- Front auxiliary release and rear escape-release pushbutton provide practical release options for guarded machinery.
- Two 12-pole M12 connectors provide a structured connection interface for safety, signalling and control functions.
Key Features
- Pizzato NS series safety switch with lock and integrated control devices.
- Contactless RFID actuator detection.
- Operating principle D: actuator locked with electromagnet de-energised.
- Mode 1: OS safety outputs active with guard locked.
- Maximum actuator holding force of 2,100 N.
- Two safety inputs: IS1 and IS2.
- Two safety outputs: OS1 and OS2.
- O3: actuator-inserted signalling output.
- O4: actuator-locked signalling output.
- Two electromagnet activation inputs: IE1 and IE2.
- I3 programming/reset input.
- Blue pushbutton with 1NO contact.
- Black pushbutton with 1NO contact.
- White pushbutton with 1NO contact.
- Red emergency-stop button with 2NC contacts and turn-to-release operation.
- Front screwdriver-operated auxiliary release.
- Rear escape-release pushbutton.
- Two 12-pole M12 connectors.
- Technopolymer housing with IP65 protection according to EN 60529.
Integrated RFID Guard Locking and Operator Controls
The Pizzato NSD4CE1SRK-N246 combines several machine-interface functions that would otherwise require separate components. RFID actuator monitoring detects the guard condition, the electromagnetic locking mechanism retains the guard when required, and the electronic safety outputs communicate the monitored safety state to a compatible safety control system.
Its integrated blue, black and white pushbuttons provide local command functions, while the red emergency-stop device adds a directly accessible 2NC emergency control. The front auxiliary release and rear escape-release pushbutton further enhance access-management functionality, making this configuration particularly suitable for enclosed machinery and guarded automated cells.
Typical Applications
- Robotic cells and enclosed automated systems.
- Industrial machine guard doors and access points.
- Packaging and processing machinery.
- Automated assembly and production lines.
- Guarded areas requiring an internal escape-release facility.
- Machinery requiring local pushbutton and emergency-stop controls.
- Conveyor and material handling installations.
- OEM machinery requiring integrated guard locking and operator controls.
