Why Choose the Pizzato NG 2D7D312S-F31 Safety Switch with Lock?
The Pizzato NG 2D7D312S-F31 is an industrial safety switch with guard locking and integrated control devices designed for monitoring and controlling access to hazardous areas of machinery. Part of the advanced Pizzato NG series, it combines coded actuator detection, guard locking, safety inputs and outputs, status signalling and local operator controls in a robust metal-bodied device.
This model uses principle D operation, meaning the actuator remains locked when the locking solenoid is de-energised. It provides two safety inputs, two safety outputs, separate signalling outputs for actuator insertion and locking status, and dedicated inputs for solenoid activation and reset, enabling effective integration with modern machine safety control systems.
The NG 2D7D312S-F31 is supplied complete with the VN NG-F31 high-level coded actuator. Its rotating head incorporates an escape pushbutton, while the cover provides three integrated operator controls: a white pushbutton, a blue pushbutton and a red emergency pushbutton with turn-to-release operation.
Key Advantages
- Combines guard monitoring, locking and local operator controls in one industrial safety device.
- Principle D locking operation keeps the actuator locked with the solenoid de-energised.
- Supplied with a VN NG-F31 high-level coded actuator.
- Provides two safety inputs and two safety outputs for safety-related control systems.
- Dedicated signalling outputs indicate actuator inserted and actuator locked status.
- Three integrated control devices reduce the need for separate operator-control components.
- Robust metal housing with rotating head and escape pushbutton for demanding machinery applications.
Key Features
- Pizzato NG series safety switch with lock.
- Three integrated control devices on the cover.
- Position 1: white pushbutton, 1NO + 1NC.
- Position 2: blue pushbutton, 1NO + 1NC.
- Position 3: red emergency pushbutton, turn to release, 2NC.
- 2 safety inputs IS1–IS2 and 2 safety outputs OS1–OS2.
- O3 signalling output for actuator inserted status.
- O4 signalling output for actuator locked status.
- I4 or IE1–IE2 inputs for solenoid activation.
- I3 input for actuator programming / reset.
- Safety outputs active with the actuator inserted and locked.
Reliable Guard Locking for Industrial Machinery
Guard-locking safety switches are used to prevent access to hazardous machine areas until the safety control system permits a guard to be opened. The Pizzato NG series combines coded actuator monitoring with electronically controlled safety functions, allowing guard position and locking status to be incorporated into a machine's safety-related control architecture.
The NG 2D7D312S-F31 adds integrated operator controls directly at the guard access point. Its de-energised locking principle is suitable for machinery where the guard must remain mechanically locked if power to the locking solenoid is removed, while the rotating head and escape pushbutton support flexible installation and personnel egress requirements.
Typical Applications
- Machine guard doors and safety access gates.
- Automated production and assembly machinery.
- Robotic cells and guarded automation systems.
- Packaging and processing equipment.
- Conveyors and material handling systems.
- Machine tools and manufacturing equipment.
- Safety enclosures requiring integrated local operator controls.
