Energy harvesting wireless switches for industrial use

July 08, 2015 // By Julien Happich
Cherry Switches now makes available its energy harvesting wireless switches in two standard versions for industrial applications: a rocker switch for actuation by hand or a snap-action switch for mechanical actuation typically by a machine as limit switch or position switch.

Both variants are available for European (868MHz) or North-American (915MHz) frequency bands with a radio range of 30m inside buildings and a minimum life of 100,000 operations.

A compatible enclosed standard receiver module for 868MHz and 915MHz offers several output interface options, complete with power supply and suitable for wall mounting. A flexible pairing function allows operation of several receivers with one switch or several switches with one receiver. A 'unique ID' prevents interference between different RF-switches.

The company also proposes a standalone energy harvesting generator module delivering an energy yield of two times 0.33mWs (minimum) within an operating temperature range of -40 up to +85°C, while rated for an operating life of up to 1,000,000 switching cycles. In addition to the core component, the radio module (generator with PCB) is available for the 868MHz and 915MHz frequency bands as standard.

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