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H
ELECTRICITY
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H01
ELECTRIC ELEMENTS
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H01H
ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
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51/00
Electromagnetic relays
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H01H51/02
Non-polarised relays
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H01H51/04
with single armature; with single set of ganged armatures
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H01H51/12
Armature is movable between two limit positions of rest and is moved in both directions due to the energisation of one or the other of two electromagnets without the storage of energy to effect the return movement
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