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NS D4ST1SMK-F41 Pizzato NS series safety locking switch, with actuator
£274.40
Why Choose the Pizzato NSD4ST1SMK-F41 Safety Interlock Switch?
The Pizzato NSD4ST1SMK-F41 is a high-integrity RFID safety interlock switch with guard locking designed for industrial machine safety applications requiring secure access control, reliable door monitoring, and enhanced anti-tamper protection. It belongs to the advanced Pizzato NS NS-series safety locking switch family, widely used in robotics, OEM machinery, and automated production systems.
This model operates using a de-energised solenoid locking mechanism combined with high-level RFID coding (F41). Unlike low-coded variants, F41 uses unique actuator pairing, meaning each switch is matched to a specific actuator, significantly improving protection against bypassing or unintended actuation in safety-critical environments.
With its compact reinforced technopolymer housing, robust sealing, and IP67/IP69K protection rating, the NSD4ST1SMK-F41 is ideal for robotic cells, packaging machinery, conveyors, and OEM equipment where dependable guard locking and high-security interlocking are required in demanding industrial conditions.
Key Advantages
- High-level RFID coding (F41) for unique actuator pairing and strong anti-tamper protection.
- Solenoid guard locking with fail-safe de-energised release principle.
- Dual safety outputs (OS1/OS2) for redundant guard status monitoring.
- Integrated diagnostic outputs for actuator and lock status (O3/O4).
- High mechanical holding force up to approx. 2100 N (application dependent).
- Designed for integration into safety PLC and industrial automation systems.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSD4ST1SMK-F41.
- RFID high coding actuator recognition (F41 unique pairing system).
- De-energised solenoid guard locking (fail-safe design).
- M12 industrial connector interface (12-pin typical NS architecture).
- Safety outputs OS1/OS2 with diagnostic signals O3/O4.
- Auxiliary release for maintenance and emergency access.
Reliable Machine Guarding and Safety Control
The Pizzato NSD4ST1SMK-F41 ensures machinery only operates when protective guards are correctly closed and securely locked. When the uniquely coded actuator is detected and the locking system 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 monitoring of actuator and lock status ensures reliable integration into PLC-based safety architectures used in modern industrial automation systems.
Typical Applications
- Industrial automation machinery.
- Robotic safety enclosures.
- Packaging and production systems.
- Conveyor and material handling systems.
- OEM machine building applications.
- High-security machine 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) | |
| Locking principle | De-energised solenoid locking (fail-safe) | |
| Mounting type | Industrial machine guard mounting | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato NSD4ST1SMK-F41 used for?
It is used to ensure machine guards are closed and safely locked before machinery can operate.
What does F41 mean?
F41 means high-level RFID coding where each switch is paired with a uniquely assigned actuator for maximum security.
Does it include guard locking?
Yes, it includes a solenoid-based guard locking system 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.
