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NS D4ST1SA2-F41 Pizzato NS series safety locking switch, with actuator
£274.48
Why Choose the Pizzato NSD4ST1SA2-F41 Safety Interlock Switch?
The Pizzato NSD4ST1SA2-F41 is a high-reliability RFID safety interlock switch with guard locking designed for industrial machine safety applications requiring secure access control and consistent guard monitoring. It belongs to the advanced Pizzato NS NS-series safety locking switch family, engineered for robust actuator recognition, solenoid locking, and high-integrity safety feedback in automated machinery systems.
This model uses a de-energised solenoid locking mechanism combined with high-level RFID coding (F41), ensuring strong protection against tampering by allowing only a uniquely coded actuator to operate the switch. It is designed for compliance with EN ISO 14119 and is widely used in safety-rated industrial automation systems.
With its compact technopolymer housing, industrial sealing, and IP67/IP69K protection rating, the NSD4ST1SA2-F41 is suitable for robotic cells, packaging machinery, conveyors, and OEM automation equipment where dependable guard locking and safety interlocking are required.
Key Advantages
- High-security RFID-coded actuator system (F41 high coding level) for strong anti-tamper protection.
- Solenoid guard locking with fail-safe de-energised release principle.
- Dual safety outputs (OS1/OS2) for redundant guard monitoring.
- Integrated diagnostic outputs for actuator and lock status (O3/O4).
- Designed for PL e / SIL 2–3 safety architectures in industrial automation systems.
- Suitable for series connection in safety chains for complex machinery systems.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSD4ST1SA2-F41.
- RFID high-level coded actuator recognition (F41).
- De-energised solenoid guard locking (fail-safe design).
- M12 12-pole industrial connector interface (typical NS architecture).
- Safety outputs OS1/OS2 with diagnostic signals O3/O4.
- Auxiliary release function for maintenance and emergency access.
Reliable Machine Guarding and Safety Control
The Pizzato NSD4ST1SA2-F41 ensures machinery only operates when protective guards are correctly closed and locked. When the RFID-coded actuator is detected and locking is engaged, 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 diagnostics monitor actuator status and lock condition, ensuring reliable integration into PLC-based safety architectures in industrial automation environments.
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.
Technical Specifications
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| Housing Material | Technopolymer | |
|---|---|---|
| Connection | M12 connector | |
| Product Series | Pizzato NS | |
| Device Type | Guard-locking switch | |
| IP Rating | IP67 | |
| Safety Switch Type | Guard locking (solenoid) | |
| Guard Locking | Power to release (spring lock) | |
| Series | NS Safety Interlock Switches | |
| Product type | Safety interlock switch with guard locking | |
| Actuator type | RFID-coded actuator (F41 high coding) | |
| Housing material | Reinforced technopolymer | |
| Protection rating | IP67 / IP69K | |
| Operating temperature | -25°C to +70°C | |
| Electrical connection | M12 connector (variant dependent) | |
| Safety outputs | 2 redundant outputs (OS1, OS2) | |
| Signalling outputs | O3 (actuator inserted), O4 (lock status) | |
| Control inputs | IE1, IE2 (solenoid activation), I3 (reset/program) | |
| Locking principle | De-energised solenoid locking (fail-safe) | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato NSD4ST1SA2-F41 used for?
It is used to ensure machine guards are closed and safely locked before machinery is allowed to operate.
What does F41 mean?
F41 refers to a high-level RFID coding system that allows only a uniquely paired actuator for maximum anti-tamper protection.
Does it include guard locking?
Yes, it includes a solenoid-based guard locking mechanism to prevent access during hazardous machine operation.
What happens if the guard is opened?
The safety outputs trigger an immediate controlled stop to ensure operator safety.
Is it compatible with safety PLC systems?
Yes, it is designed for integration with modern safety PLC and industrial automation systems.
Trusted in Industrial Safety Systems Worldwide
Pizzato NS-series safety interlock switches are widely used by machine builders and automation engineers to deliver reliable guard locking, RFID-based access control, and high-integrity functional safety performance in industrial environments.
