GO switches are particularly well-suited to harsh environments, such as those found in the power generation industry. They have been a market leader in robust leverless limit switches since 1950. These switches offer the feature of no physical contact in order to switch, as they operate on a magnetic basis, sensing mild steel for operation. This benefit means that there are no arms to break off or get stuck. Each unit is totally sealed from the environment, therefore no dust can penetrate the switch and contaminate the contacts. GO switches have been constructed especially for harsh conditions (ie dusty, high temperature and moisture conditions). Typical operating temperatures are 105°C, while high temperature options of 230°C are available. These switches operate with potential free contacts, therefore no power is required to make the unit switch. Furthermore, because there is no volt drop across the contacts, these units are ideal for PLC feedback. The housings are made from either solid brass, or stainless steel, thereby providing a very rugged limit switch.
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