NS G4AZ1SMK-F41 Pizzato NS series safety locking switch, with actuator

Why Choose the Pizzato NSG4AZ1SMK-F41 Safety Interlock Switch?

The Pizzato NSG4AZ1SMK-F41 is a high-performance RFID safety interlock switch with solenoid guard locking, designed for industrial machine safety applications requiring strong actuator coding, reliable door monitoring, and controlled access management. Manufactured by Pizzato Elettrica, it ensures machinery remains safely locked until all hazardous conditions have been eliminated.

This model belongs to the Pizzato NS series safety interlock switches featuring high-coded RFID actuator recognition (F41 level) and de-energised solenoid locking. It is widely used in OEM machinery, robotic systems, and automated production environments where high safety integrity, tamper resistance, and reliable guard control are essential.

The NSG4AZ1SMK-F41 operates in a G 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 closed, the actuator is correctly detected, and the locking state is confirmed, ensuring compliance with modern machine safety requirements. {index=1}

Key Advantages

• High-coded RFID actuator (F41 level) for maximum tamper resistance.
• Integrated solenoid guard locking system for safe machine access control.
• Reliable monitoring of door closed, actuator inserted, and lock status.
• Designed for OEM machinery and industrial automation systems.
• Rugged technopolymer housing suitable for harsh industrial environments.
• Supports high safety integrity systems (PL e / SIL 3 architecture possible depending on system design).

Key Features

• Pizzato NS series safety interlock switch.
• Model: NSG4AZ1SMK-F41.
• High-coded RFID actuator system (F41 type).
• 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-F41 prevents access to hazardous machine areas by ensuring guards remain locked until safe operating conditions are confirmed. The RFID system verifies correct actuator presence and position, reducing the risk of bypass, tampering, or accidental machine restart.

Its safety outputs integrate with PLCs or safety controllers, enabling continuous monitoring of guard status, actuator detection, and lock condition in automated production environments. {index=2}

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.