NS D3SE1SMK-F40 Pizzato NS series safety locking switch, with actuator

Why Choose the Pizzato NS D3SE1SMK-F40 Safety Locking Switch?

The Pizzato NS D3SE1SMK-F40 is an advanced RFID safety locking switch with separate actuator designed for reliable monitoring and locking of protective guards, doors and access points on industrial machinery. Part of the Pizzato NS series, it combines contactless RFID actuator detection with solenoid-controlled guard locking and electronic safety monitoring in a robust technopolymer housing.

This model uses the D operating principle, meaning the actuator is locked when the electromagnet is de-energised. In Mode 1, the OS safety outputs are active when the protective guard is locked. Dual safety inputs and outputs, dedicated actuator and lock status signals, and electromagnet activation inputs provide comprehensive integration with compatible machine-safety controllers.

The NS D3SE1SMK-F40 is supplied complete with the VN NS-F40 universal actuator with low coding level. It provides a locking force of 2,100 N and incorporates both a front key-operated auxiliary release and rear escape-release pushbutton. A downward-facing 12-pole M12 connector provides a convenient electrical interface for demanding automated machinery and guarded industrial installations.

Key Advantages

• Advanced RFID safety locking switch for machine guards and access doors.
• Supplied complete with VN NS-F40 universal actuator.
• 2,100 N locking force provides secure retention of protective guards.
• D operating principle locks the actuator when the electromagnet is de-energised.
• Rear escape-release pushbutton provides a means of unlocking from inside a guarded area.
• Front key-operated auxiliary release provides controlled manual unlocking.
• Dual electronic safety inputs and outputs support modern machine-safety architectures.
• Separate outputs provide actuator-inserted and actuator-locked status.
• 12-pole M12 connector simplifies electrical installation and servicing.
• High environmental protection with IP67 and IP69K ratings.

Key Features

• Pizzato NS series RFID safety switch with guard locking.
• VN NS-F40 universal actuator with low coding level.
• D operating principle — actuator locked with de-energised electromagnet.
• Mode 1: OS safety outputs active with protection locked.
• 2 safety inputs IS1–IS2.
• 2 safety outputs OS1–OS2.
• O3 signalling output for actuator-inserted status.
• O4 signalling output for actuator-locked status.
• 2 electromagnet activation inputs IE1–IE2.
• I3 reset input.
• 2,100 N guard-locking force.
• Orientable front key-operated auxiliary release.
• Rear escape-release pushbutton for release from inside the protected area.
• Downward cable or connector output direction.
• 12-pole M12 connector.
• Technopolymer housing with IP67 / IP69K protection.

Reliable Guard Locking with Controlled and Emergency Release

Pizzato NS series switches combine RFID actuator detection with mechanical guard locking, allowing a machine safety system to monitor both actuator presence and the locked state of a protective guard. The D operating principle of the NS D3SE1SMK-F40 keeps the actuator locked while the electromagnet is de-energised, supporting controlled access to machinery where hazardous conditions can remain after a stop command.

The combination of a front key-operated auxiliary release and rear escape-release pushbutton provides additional flexibility for access management. The front release enables controlled manual unlocking, while the rear escape release provides a means for personnel inside a protected area to release the guard, making this configuration particularly suitable for enclosed automation cells and larger guarded machinery.

Typical Applications

• Machine guard and access-door interlocking.
• Robotic cells and enclosed automation areas.
• Automated production and assembly machinery.
• Packaging and processing equipment.
• Material handling and conveyor systems.
• Machine tools and manufacturing equipment.
• Guarded areas requiring an internal escape-release facility.