Electromagnetic suction cups. Low power consumption components designed to hold a device in a specific position and to free this device using a simple electrical signal. Operation: - holding: the metal object is held in place on contact with the electromagnet, which is fitted on a fixed element. - release: the metal object is freed from the electromagnet contact when the power supply is cut on ''no voltage'' models, and on power up for ''current emission'' models. Applications: industrial automation and fire safety (locking fire doors, opening smoke extraction dampers, closing ventilation flaps or dampers, etc.) Documentation, curves and footprint dimensions available on request.