Why Choose the Pizzato NSD4AZ1SMK-F41 Safety Interlock Switch?
The Pizzato NSD4AZ1SMK-F41 is a high-reliability RFID safety interlock switch with solenoid guard locking, designed for industrial machine safety applications requiring strong actuator coding, dependable locking force, and precise status feedback. Manufactured by Pizzato Elettrica, it provides secure protection by ensuring machinery remains locked until safe conditions are achieved.
This model belongs to the Pizzato NS series of safety locking switches with integrated RFID high-coded actuator recognition (F41 level) and de-energised solenoid locking. It is widely used in OEM machinery, robotics, and automated production systems where high safety integrity and tamper resistance are essential.
The NSD4AZ1SMK-F41 operates in a D working method configuration, meaning the actuator is locked when the solenoid is de-energised (24 Vdc). Safety outputs are enabled only when the guard is correctly closed and the actuator is properly detected and locked, ensuring a high level of functional safety. {index=1}
Key Advantages
- High-coded RFID actuator (F41 level) for strong anti-tamper protection.
- Integrated solenoid guard locking system for machine safety.
- Reliable monitoring of actuator inserted and locked states.
- Designed for OEM machinery, robotics, and automation systems.
- Robust technopolymer housing suitable for industrial environments.
- Supports high safety performance architectures (PL d / SIL 2 typical use).
Key Features
- Pizzato NS series safety interlock switch.
- Model: NSD4AZ1SMK-F41.
- High-coded RFID actuator system (NS-F41 type).
- 2 safety inputs (IS1–IS2).
- 2 safety outputs (OS1–OS2).
- 1 actuator inserted signal output (O3).
- 1 actuator locked signal output (O4).
- 2 solenoid activation inputs (IE1–IE2).
- 1 programming/reset input (I3).
- M12 connector, 12-pole configuration.
High-Security Guard Locking for Industrial Systems
The Pizzato NSD4AZ1SMK-F41 prevents access to hazardous machine areas by ensuring the guard remains locked until all safety conditions are met. Its high-coded RFID system significantly reduces the risk of bypassing or actuator substitution.
The integrated safety outputs provide real-time feedback to safety PLCs or controllers, allowing continuous monitoring of guard status, actuator insertion, and locking state within automated systems.
Typical Applications
- Industrial robotic safety cells.
- Automated manufacturing systems.
- Packaging and processing machinery.
- Machine tools requiring high safety integrity.
- OEM automation equipment.
- Material handling and conveyor safety systems.
