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Siemens 8DA Operating Instructions Manual page 12

Medium-voltage switchgear, extendable fixed-mounted circuit-breaker switchgear up to 40.5 kv, single busbar, single-pole metal-enclosed, metal-clad, sf6-insulated

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Installation
Setting down the transport units from the narrow side of the
floor opening
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Setting down the transport units from alongside the floor
opening
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