SICK i110 Safety Interlock Switch, Die Cast Zinc

This safety interlock switch is an electro-mechanical device designed to protect access points by monitoring guard position and interrupting circuits when required. Built with a die-cast zinc housing and a slow-action switching element, it is intended for industrial automation contexts where environmental sealing and clear contact behaviour are needed. The unit connects via a single M20 cable gland and relies on external safety logic for fault detection.

• 2NC 2NO safety contacts provide defined circuit separation for safety
• 240V AC rated contact voltage supports typical control systems
• 24V DC switching capability suits low-voltage safety circuits
• IP67 enclosure rating permits use in harsh environments
• Operates up to +80°C for high-temperature applications

• Suitable for guarding on production machinery
• Ideal for integration into conveyor access controls
• Used with safety PLCs for monitored interlock circuits
• Can be used for door monitoring in washdown areas
• Useful where actuator is supplied separately by the integrator

It uses one M20 cable gland and accepts conductors up to 1.5mm².

It has no internal fault detection so the connected safety logic must perform fault monitoring.

Mechanical life is 1x10⁶ switching cycles and actuation frequency is up to 7,200/h.

No actuator is supplied

Rated insulation voltage is 240V, impulse withstand voltage is 2,500V and short-circuit protection is T10/10A.