SICK i110 Safety Interlock Switch, Die Cast Zinc

This safety interlock switch provides monitored access control for industrial machinery, designed for outdoor and harsh indoor environments. It operates as a slow-action mechanical switching device with positive-action contacts and connects via a single M20 cable gland. The unit is housed in a varnished die-cast zinc enclosure and is suitable for wiring into external safety logic that performs fault detection and diagnostics.

• 3A rated operating current delivering defined switching capability
• IP66 enclosure rating offering protection against dust and powerful water jets
• Three positive-action N/C contacts ensuring predictable safe switching
• Supports AC and DC control with 240V AC and 24V DC compatibility
• Mechanical life 1x10^6 switching cycles for extended service intervals

• Suitable for guarding perimeter access on production lines
• Ideal for integration with external safety logic units
• Used with rope-pull or interlock guarding arrangements
• Can be used for machine stop/control circuits in factories
• Suitable for environments requiring temperature resilience

The device contains no internal fault monitoring so the connected safety logic unit must perform fault detection.

It uses a single M20 cable gland and supports conductor cross-sections up to 1.5mm².

It is rated to operate and be stored between -25°C and +80°C.

No actuator is included

Short-circuit protection is T6 and the rated insulation voltage is Ui 250V.