Lighting facility for a refrigerator or upright deep-freezer has a sensor and alarm facility, a hand switch, a snap switch, an internal wire and a source of alternating current voltage

摘要

A hand switch (HS) (2) acts as a current circuit breaker. An internal wire (IW) (4) consists of internal (411) and external (421) lighting units and a control circuit (CC) (43). A sensor and alarm facility (1) fits between the IW and a source (5) of alternating current voltage, a current connection (51) for which links to a snap switch (3) linked to the HS and CC.