Telemecanique Sensors XCSA503 Key Safety Limit Switch

Product Description

The TELEMECANIQUE SENSORS XCSA503 is a metal key-operated safety limit switch designed for machine guarding and interlock applications in industrial environments. It uses a 2NO/NC contact configuration activated by a removable metal key actuator, providing positive-mode operation that meets modern safety circuit requirements. The switch carries an IP67 ingress protection rating, making it suitable for wash-down and high-contamination environments. Licensed electricians and industrial maintenance technicians install this switch as part of machine safety systems compliant with EN/IEC 60204-1 and related standards. It is RoHS compliant and certified under UL 508, CSA C22.2 No. 14, and EN/IEC 60947-5-1.

The XCSA503 is used in industrial machinery safety interlocks where guard doors, access panels, or safety gates must be monitored. It is suited for both Utilization Category AC-15 and DC-13 circuits, covering a range of control voltage applications. Typical installations include manufacturing equipment, packaging lines, conveyor systems, and other machinery requiring positive safety interlock confirmation before operation. The key actuator design deters casual bypass and is consistent with requirements under EN 1088/ISO 14119 for interlocking devices associated with guards.

Key Features

• 2NO/NC contact configuration for positive-mode safety interlock circuits
• Key actuator type per EN 1088/ISO 14119 — resists simple defeat or bypass
• IP67 ingress protection rating — sealed against dust and temporary water immersion
• Rated for both AC-15 and DC-13 utilization categories
• Metal housing construction for durability in industrial settings
• Multi-standard certified: UL 508, CSA C22.2 No. 14, EN/IEC 60947-5-1, EN/IEC 60204-1, EN/ISO 12100, RoHS

Compatibility

Designed as an OEM-style safety limit switch for industrial machine guarding and interlock systems requiring a key-operated actuator with a 2NO/NC contact block in a compact metal housing.

Installation Notes

Installation should be performed by a qualified electrician or industrial controls technician in accordance with NEC and applicable local electrical codes. De-energize and lock out the machine control circuit before mounting or wiring this switch. Verify that the key actuator engages and releases cleanly with the guard or door mechanism before returning the machine to service. Do not defeat or bypass the interlock circuit during testing.