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PCE
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CPC Subgroup
F21V 25/10

coming into action when lighting device is overloaded, e.g. thermal switch

Full Title

Safety devices structurally associated with lighting devices (gas- tight or water-tight arrangements F21V31/00; in general F16P; protective circuit arrangements per se H02H7/00) > coming into action when lighting device is overloaded, e.g. thermal switch