SICK I15 Safety Switch, Power, Fibreglass Reinforced Thermoplastic, i15 Lock

This safety switch is a compact, power-to-lock interlock designed to secure access points in industrial installations. Intended for non-hazardous areas, it uses electro-mechanical sensing with monitored normally closed contacts for locking and door status. The unit connects via an M20 cable gland and operates within typical indoor ambient temperatures, providing a robust means to integrate a locking interlock into machine-safety circuits where a separate safety logic unit manages fault detection.

• 4A contact current provides consistent switching capacity for control circuits
• Power-to-lock operation supplies 20.4V to 26.4V DC for secure locking
• IP67 enclosure rating allows protection against dust and temporary immersion
• Four-way head orientation supports flexible actuator approach
• 1NC and 2NC monitored contacts enable positive-action monitoring

• Suitable for safeguarding machine guards on production lines
• Ideal for integration with external safety-related logic units
• Used with guarded access doors requiring monitored locking
• Can be used for enclosed conveyor access protection

It offers electro-mechanical contacts with slow-action switching and rated currents of 4A at 230V AC and 4A at 24V DC.

Individual wiring to a safety-related logic unit is required because the unit lacks internal fault detection and depends on external diagnostics.

The unit is rated for operation and storage between -20°C and +55°C with a contamination rating of 3.

No

Mechanical life is specified at 2x10^6 switching cycles with an actuation frequency up to 7,000/h and approach speeds up to 20m/min.