SICK i11 Safety Interlock Switch, Fibreglass Reinforced Thermoplastic

This safety interlock switch is an electro-mechanical device designed to monitor access points and interrupt machinery when guards are opened. It operates as a mechanically actuated safety switch with multiple head orientations, suited to industrial automation contexts where contact-based guard monitoring is required. The unit is delivered without an actuator and is intended for hardwired connection to safety logic units that perform fault monitoring.

• 4A Rated current supports 230V AC and 24V DC operation
• IP67 Enclosure rating permits use in wet or dusty environments
• 2N/C Plus 1N/O contacts provides defined safety switching
• Glass-fibre reinforced thermoplastic housing offers Durable protection
• Actuation frequency ≤7000/h enables frequent guard operations

• Suitable for machine guard monitoring in manufacturing plants
• Used with safety relays for access control interlocking systems
• Ideal for conveyor guards requiring series contact diagnostics
• Can be used for packaging machinery with frequent cycles
• Used for equipment where multi-direction approach is required

The switch lacks internal fault detection so the connected safety logic unit must perform diagnostics.

Cable entry is via three M16 glands with conductor cross-section up to 1.5mm².

Mechanical life is specified as 1 x 10⁶ switching cycles under normal conditions.

It operates between -20°C and +80°C for both use and storage.

No, the actuator is supplied separately.