"The design of the Sipha S4 non-contact switch incorporates several magnetically sensitive elements which must be triggered in a particular sequence to operate correctly. The sensor is designed for use with its own actuator, helping prevent defeat by means of a simple magnet. With its moulded-in brackets and diminutive size this non-contact switch is extremely versatile and simple to install.Non-contact actuation. Magnetic coded sensing. Must be operated with its own safety control unitSupply Voltage = 250 V ac, 300 V dcHousing Material = PlasticRange = SiphaSeries = 440NIP Rating = IP67Actuator Included = YesSensor Principle = MagneticDepth = 16mmDimensions = 78 x 33.5 x 16 mmLength = 78mm"

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