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NS D4SR1SMK-F41 Pizzato NS series safety locking switch, with actuator
Pizzato NSD4SR1SMK-F41 RFID safety interlock switch with solenoid locking and high-level coded F41 actuator for industrial machine guarding applications.
£359.58
Why Choose the Pizzato NSD4SR1SMK-F41 Safety Interlock Switch?
The Pizzato NSD4SR1SMK-F41 is a high-integrity RFID safety interlock switch with solenoid locking designed for advanced machine guarding applications in industrial automation systems. Manufactured by Pizzato Elettrica, it belongs to the NS series safety switch family used to protect operators and ensure machinery only operates when safety guards are securely closed and locked.
This device is typically installed on safety doors, hinged guards, sliding panels, and machine access points. It prevents hazardous machinery from operating while the guard is open, helping maintain compliance with EN ISO 14119 machine safety standards and modern functional safety architectures.
The NSD4SR1SMK-F41 uses a high-level coded F41 RFID actuator system, meaning it recognises only a single uniquely paired actuator for maximum anti-tamper protection and high safety integrity in demanding industrial environments.
Key Advantages
- High-security RFID safety interlock with solenoid locking.
- F41 high-level coded actuator for maximum tamper resistance.
- Designed for industrial machine safety systems and automation cells.
- Reliable dual-channel safety outputs for PLC integration.
- Integrated monitoring of door position and lock status.
- Robust industrial design for harsh environments.
Key Features
- Pizzato NS series safety interlock switch with locking function.
- Solenoid locking mechanism with fail-safe de-energised release principle.
- High-level coded RFID actuator system (F41 type).
- 2 safety outputs (OS1–OS2) for safety PLC integration.
- Actuator insertion and lock status signalling outputs.
- Industrial sealed housing for harsh environments.
- Designed for high-risk machine safety applications.
Advanced Machine Guard Safety Control
The NSD4SR1SMK-F41 ensures machinery remains safely disabled whenever guards are open or not correctly secured. The solenoid locking mechanism physically prevents access until safe conditions are achieved, while the RFID system ensures only the correct F41-coded actuator can operate the switch.
This makes it suitable for high-security automation environments where safety integrity, reliability, and tamper resistance are essential. The device integrates with safety PLCs for real-time monitoring of guard status and lock condition, including both “door closed” and “door locked” feedback signals.
Typical Applications
- Industrial automation production lines.
- Robotics safety cells and guarded machinery areas.
- CNC machining centres and tooling equipment.
- Packaging and processing machinery.
- Material handling systems and conveyors.
- High-risk safety doors, guards, and access panels.
Technical Specifications
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| Device Type | Guard-locking switch | |
|---|---|---|
| Housing Material | Technopolymer | |
| Connection | M12 connector | |
| Product Series | Pizzato NS | |
| IP Rating | IP67 | |
| Safety Switch Type | Guard locking (solenoid) | |
| Guard Locking | Power to release (spring lock) | |
| Series | NS Series Safety Interlock Switches | |
| Product type | RFID safety interlock switch with solenoid locking | |
| Actuator type | F41 high-level coded RFID actuator | |
| Coding level | High (single unique actuator recognition) | |
| Operating principle | Locked actuator with de-energised solenoid (mode-dependent NS series configuration) | |
| Safety outputs | 2 (OS1–OS2) | |
| Signalling outputs | Actuator inserted and lock status monitoring | |
| Connection type | M12 connector, 12-pole (typical NS SR configuration) | |
| Protection rating | IP67 / IP69K (typical NS series high-protection variants) | |
| Housing material | Reinforced industrial technopolymer | |
| Operating temperature | Industrial range (-25°C to +70°C typical) | |
| Safety performance | Up to PL e / SIL 3 system capability (system dependent) | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato NSD4SR1SMK-F41 used for?
It is used to monitor and lock safety doors and machine guards, preventing unsafe machine operation during access.
What type of actuator does it use?
It uses an RFID-coded F41 high-level actuator designed for single-device recognition and maximum security.
Is it tamper-resistant?
Yes, F41 coding ensures only the paired actuator is recognised, providing strong protection against substitution or bypass attempts.
Does it include a locking mechanism?
Yes, it includes a solenoid locking system that keeps the guard locked until safe conditions are met.
Where is this switch typically installed?
It is typically installed on machine guards, safety doors, and access panels in industrial automation systems.
Trusted in Industrial Machine Safety Systems Worldwide
Pizzato NS series safety interlock switches are widely used in industrial automation to improve machine safety, ensure compliance with international standards, and protect operators in hazardous environments.
