Why Choose the Pizzato NSD4ST1SPK Safety Interlock Switch?
The Pizzato NSD4ST1SPK is a robust RFID safety interlock switch with guard locking designed for industrial machine safety applications requiring reliable door monitoring, controlled access, and dependable interlocking performance. It is part of the widely used Pizzato NS NS-series safety locking switch family, trusted in OEM machinery, robotics, and automated production environments.
This model features a de-energised solenoid locking mechanism that ensures the guard remains locked during hazardous machine operation and releases only under safe conditions. It is designed to support compliance with EN ISO 14119 machine safety standards, making it suitable for modern safety-rated control systems.
With its compact reinforced technopolymer housing, industrial sealing, and IP67/IP69K protection rating, the NSD4ST1SPK is ideal for robotic cells, packaging machinery, conveyors, and OEM equipment where reliable guard locking and high-duty cycle performance are essential. ([ledcontrols.co.uk](https://www.ledcontrols.co.uk/ns-d4st1spk-pizzato-ns-series-safety-locking-switch.html?utm_source=chatgpt.com))
Key Advantages
- Reliable solenoid guard locking for machine safety applications.
- Compatible with NS-series RFID actuator systems (F40/F41 depending on configuration).
- Dual safety outputs (OS1/OS2) for redundant guard status monitoring.
- Integrated diagnostic outputs for actuator and lock status (O3/O4 in platform variants).
- High protection rating IP67 / IP69K for harsh industrial environments.
- Suitable for integration into safety PLC and industrial automation systems.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSD4ST1SPK.
- Solenoid-operated guard locking (fail-safe de-energised release).
- RFID actuator compatibility depending on system configuration.
- M12 industrial connector interface (typical NS architecture).
- Safety outputs OS1/OS2 with diagnostic signalling.
- Auxiliary release for maintenance and emergency access.
Reliable Machine Guarding and Safety Control
The Pizzato NSD4ST1SPK ensures machinery only operates when protective guards are correctly closed and safely locked. When the actuator is engaged and the locking system is active, the safety outputs enable controlled machine operation under safe conditions.
If the guard is opened or the locking condition is removed, the system triggers an immediate safe stop. Continuous monitoring of actuator and lock status ensures reliable integration into PLC-based safety architectures used in industrial automation systems.
Typical Applications
- Industrial automation machinery.
- Robotic safety enclosures.
- Packaging and production systems.
- Conveyor and material handling systems.
- OEM machine building applications.
- General machine safety guarding systems.
