Why Choose the Pizzato NG 2D7D411D Safety Switch with Lock?
The Pizzato NG 2D7D411D is an advanced NG series safety switch with guard locking and integrated control devices designed for monitoring and controlling access to hazardous areas of industrial machinery. It combines coded electronic guard monitoring, solenoid-operated locking, safety inputs and outputs, status signalling and local operator controls within a robust metal housing.
This model uses principle D operation, meaning the actuator is locked when the solenoid is de-energised. It provides two safety inputs IS1–IS2, two safety outputs OS1–OS2 and dedicated signalling outputs for actuator-inserted and actuator-locked status. Activation mode 1 means the safety outputs become active when the actuator is inserted and securely locked.
The NG 2D7D411D incorporates three integrated control devices: a white 1NO + 1NC pushbutton, a black 1NO + 1NC pushbutton and a red emergency-stop button with turn-to-release operation and 2NC contacts. The metal housing features three threaded M20 × 1.5 cable entries and a rotating head with escape pushbutton. This version is supplied without actuator, allowing the appropriate compatible NG actuator to be selected separately for the application.
Key Advantages
- Combines guard monitoring, guard locking and operator controls in one industrial safety device.
- Principle D locking retains the actuator when the solenoid is de-energised.
- Provides two safety inputs and two safety outputs for integration with safety-related control systems.
- Dedicated signalling outputs provide actuator-inserted and actuator-locked status.
- Three integrated control devices include an emergency-stop button and two operator pushbuttons.
- High 9750 N locking force supports secure retention of machine guards.
- Rotating head with escape pushbutton supports safe egress from protected areas.
Key Features
- Pizzato NG series safety switch with lock.
- Three integrated control devices on the cover.
- Position 1: white pushbutton, 1NO + 1NC.
- Position 2: black pushbutton, 1NO + 1NC.
- Position 3: red emergency-stop button, 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.
- Supplied without actuator and without connector.
Reliable Guard Locking for Industrial Machinery
Guard-locking safety switches are used where access to hazardous machine areas must remain restricted until dangerous movement or processes have reached a safe condition. The Pizzato NG 2D7D411D combines electronic guard monitoring with mechanical locking, enabling the machine safety system to monitor both actuator insertion and lock status.
Its de-energised locking principle is particularly suitable for applications where the guard should remain locked if power to the solenoid is removed. Integrated pushbuttons and an emergency-stop control further reduce the need for separate operator devices around the access point, while the escape pushbutton provides an important release facility for guarded areas.
Typical Applications
- Machine guard doors and safety access gates.
- Robotic cells and automated manufacturing systems.
- Packaging and processing machinery.
- Machine tools with hazardous run-down times.
- Conveyor and material handling installations.
- Automated assembly and production equipment.
- Guarded areas requiring integrated emergency-stop and operator controls.
