Why Choose the Pizzato NSG4AZ1SMK Safety Interlock Switch?
The Pizzato NSG4AZ1SMK is a high-reliability RFID safety interlock switch with solenoid guard locking, designed for industrial machine safety applications where secure access control, actuator detection, and dependable locking performance are required. Manufactured by Pizzato Elettrica, it ensures machinery remains safely locked until all hazardous conditions are eliminated.
This model belongs to the Pizzato NS series of safety interlock switches featuring RFID-coded actuator recognition and integrated solenoid locking. It is widely used in OEM machinery, robotic systems, and automated production lines where consistent safety performance and robust guarding are essential.
The NSG4AZ1SMK operates in a G working method configuration, meaning the actuator is locked using a de-energised 24 Vdc solenoid. Safety outputs are enabled only when the guard is closed, the actuator is correctly detected, and the locking state is confirmed, ensuring high machine safety integrity. {index=1}
Key Advantages
- Integrated RFID safety interlock system for reliable actuator identification.
- Solenoid guard locking with fail-safe de-energised release logic.
- High protection against tampering and unintended access.
- Designed for OEM machinery and industrial automation systems.
- Rugged technopolymer housing for harsh industrial environments.
- Supports advanced safety architectures (PL d / SIL 2 typical system use).
Key Features
- Pizzato NS series safety interlock switch.
- Model: NSG4AZ1SMK.
- RFID actuator recognition system (NS-F41 compatible architecture family).
- 2 safety inputs (IS1–IS2).
- 2 safety outputs (OS1–OS2).
- 1 actuator inserted output (O3).
- 1 actuator locked output (O4).
- 2 solenoid activation inputs (IE1–IE2).
- 1 programming/reset input (I3).
- M12 connector, 12-pole configuration.
Reliable Guard Locking for Industrial Systems
The Pizzato NSG4AZ1SMK ensures that hazardous machine access is prevented by keeping guards locked until safe conditions are confirmed. The RFID system verifies actuator presence and correct positioning, reducing risks of bypass or accidental machine restart.
Its safety outputs integrate directly with PLCs and safety controllers, allowing continuous monitoring of guard status, actuator detection, and lock condition in automated production environments.
Typical Applications
- Industrial automation systems.
- Robotic safety cells.
- Packaging and processing machinery.
- Machine tools with safety guarding.
- OEM equipment manufacturing.
- Material handling and conveyor systems.
