SICK i110 Safety Interlock Switch, Die Cast Zinc

This safety interlock switch is designed to monitor access points in industrial settings and Interface with safety logic for fault detection. It features a zinc die‑cast housing with a varnished finish and provides slow‑action switching with positive‑action contacts, suitable for environments requiring ingress protection to IEC 60529. The unit connects via an M12 4‑pin plug and supports wired diagnostics when used with compatible safety circuitry.

• 2NC safety contacts provide positively acting safety switching
• Rated operating current 2A at 24V DC supports DC‑13 loads
• Switching current threshold 5mA enables low‑voltage signal detection
• IP66 enclosure rating protects against dust and powerful water jets
• Ambient operating range -25°C to +80°C permits high‑temperature operation

• Used with guarded machine doors requiring series safety connection
• Suitable for conveyor access points with wired diagnostics
• Ideal for control panels needing actuatorless safety interlock functionality
• Can be used in installations requiring 230V AC safety contact signalling
• Appropriate for heavy‑duty environments requiring die‑cast zinc housing

It uses a plug connector M12 4‑pin with a nickel‑plated brass coupling nut.

The device has no internal fault detection and relies on the connected safety logic to detect faults.

Mechanical life is specified as 1x10^6 switching cycles with B10d at 2x10^6 for small loads.

It is supplied with EU and UK declarations of conformity Plus cULus and third‑party certificates.

The design supports a single actuation direction and can be used with rope‑tensioned switching elements.