Autonomous Coded Switches with Safety Interlock

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Autonomous Coded Switches with Safety Interlock

Autonomous coded switches with safety interlock (PSA series) — contactless safety devices for independent access control in hazardous areas without external monitoring modules. Made of high-tech plastic, they feature built-in self-monitoring, force-guided relays and unique magnetic coding for tamper protection. IP67 sealing and service life over 1 million cycles make them ideal for food, pharmaceutical and machine-building industries.

Specifications autonomous coded switches PSA

  • Housing material: High-tech plastic (polyester) — lightweight, impact- and vibration-resistant, corrosion-proof.

  • Coding: Magnetic coded actuation (safety level SIL 3 / PL e) with high tamper resistance.

  • Contactless operation: Magnetic field, zero mechanical wear, no sparking; integrated 2 force-guided relays.

  • Electrical parameters: 24–230 V AC/DC, 4 A (switching), IP67.

  • Size: Compact housing (e.g., 40 × 40 × 20 mm), M4 screw or adhesive mounting.

  • Temperature: -25…+80 °C; sensing distance 8–14 mm with up to 5 mm misalignment tolerance.

Advantages autonomous coded switches with interlock PSA

Autonomous design with coding ensures:

  • self-monitoring (internal relay check after each cycle);

  • series connection up to 30 devices without safety loss (PLe / Cat. 4 per ISO 13849-1);

  • hygiene and resistance to washing (CIP/SIP);

  • easy integration — no additional equipment required. Contactless technology minimizes failure risks and enhances reliability in series systems.

Applications autonomous contactless coded switches PSA

  • Food industry: Door interlocks on conveyors and packaging lines.

  • Pharmaceuticals: Access control in clean rooms with hygiene requirements.

  • Machine building: Safeguarding moving parts of machines, robots and equipment.

  • Logistics: Automated gates and cabinets in high-risk warehouses.

Installation and connection autonomous coded switches PSA

  1. Secure housing with screws or adhesive base.

  2. Position coded magnetic actuator at 8–14 mm distance.

  3. Connect cable (standard 2–5 m, M12 8-pin quick connect options). Maintenance — visual inspection; LED indication (green — active).


Buy autonomous coded switches with safety interlock PSA — fast delivery across Ukraine, safety certificates (ISO 13849), project customization. CSC-AUTOMATION Phone: +38(044)494-33-55 E-mail: kck@kck.ua

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