STOL disconnectors are devices which are installed in stationary substations. They are used for no-load switching of electrical circuits. They are controlled either manually, with possibility of electromagnetic blocking of end positions, or by a motor unit with emergency control by a crank handle. The disconnector status is signalled by auxiliary contacts. Modular design of the STOL disconnector enables various versions.
Nominal voltage |
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Nominal current |
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Number of poles |
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Version |
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Control voltage |
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Ambient temperature |
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Number of auxiliary contacts |
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Overvoltage class |
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Pollution degree |
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Degree of protection |
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Mechanical lifetime |
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According to standards |
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