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NS L4SR1SMK-F41 Pizzato NS series safety locking switch, with actuator
£359.58
Why Choose the Pizzato NSL4SR1SMK-F41 Safety Interlock Switch?
The Pizzato NSL4SR1SMK-F41 is a high-performance RFID safety interlock switch with guard locking designed for advanced industrial machine safety applications. It belongs to the robust Pizzato NS NS-series safety locking switch family, engineered to deliver secure actuator recognition, high-reliability solenoid locking, and continuous safety monitoring for automated systems.
This model features a de-energised solenoid locking mechanism combined with high-level RFID coding (F41), ensuring strong resistance against tampering and guaranteeing that machine guards remain securely locked during hazardous operation. It is designed for compliance with modern functional safety standards such as EN ISO 14119 in industrial automation environments.
With its compact technopolymer housing, industrial-grade sealing, and high protection rating, the NSL4SR1SMK-F41 is widely used in robotic cells, packaging machinery, conveyors, and OEM equipment where reliable guard locking and safety interlocking are required.
Key Advantages
- High-security RFID-coded actuator system (F41 coding level) for strong anti-tamper protection.
- Solenoid guard locking with fail-safe de-energised release principle.
- Dual safety outputs (OS1/OS2) for redundant monitoring of guard status.
- Integrated diagnostic outputs for actuator and lock status (O3/O4).
- Supports series connection in safety chains for PL e / SIL 3 systems.
- Designed for integration into modern industrial automation architectures.
Key Features
- Pizzato NS-series safety interlock switch with locking.
- Model: NSL4SR1SMK-F41.
- RFID-coded high-level actuator recognition (F41).
- De-energised solenoid guard locking (fail-safe design).
- M12 12-pole industrial connector interface.
- 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 NSL4SR1SMK-F41 ensures machinery only operates when protective guards are correctly closed and locked. When the RFID-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 diagnostics monitor actuator status and lock condition, supporting integration into PLC-based safety architectures in industrial automation systems.
Typical Applications
- Robotic safety cell enclosures.
- Industrial automation machinery.
- Packaging and production systems.
- Conveyor and material handling equipment.
- OEM machine building applications.
- Safety-critical industrial environments.
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 safety actuator (F41 high coding) | |
| Housing material | Reinforced technopolymer | |
| Protection rating | IP67 / IP69K | |
| Operating temperature | -25°C to +70°C | |
| Electrical connection | M12 12-pole connector | |
| Safety outputs | 2 redundant outputs (OS1, OS2) | |
| Signalling outputs | O3 (actuator inserted), O4 (guard locked) | |
| 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 NSL4SR1SMK-F41 used for?
It is used to ensure machine guards are closed and locked before machinery can safely operate.
What does F41 mean?
F41 refers to a high-level RFID coding system that provides strong protection against actuator tampering.
Does it include guard locking?
Yes, it includes a solenoid-based guard locking mechanism with fail-safe de-energised release.
What happens if the guard is opened?
The safety outputs trigger an immediate controlled stop to ensure operator safety.
Can it integrate with safety PLC systems?
Yes, it is designed for full compatibility 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.
