Abstract: A protective device (1) which is attached on an internal side of a compressor, includes a housing (10) of an insulating material, a motor protector (20) placed on the housing (10) and having a thermally responsive switch inside, a fuse device (30), a connective terminal (40) electrically connected to a hermetic terminal in the compressor, and a quick connect terminal (50). A portion (11) of the housing for varying an installation position of the connective terminal (40) includes a plurality of vertical grooves (11a) and a horizontal slot (11b). These grooves and slots (11a and 11b) are formed equally spaced from one another at a periphery of the housing (10). The connective terminal (40) has an engaging part (41) and a fuse connecting part (43). The fuse connecting part (43) is inserted through the horizontal slot (11b), and the engaging part (41) is engaged with a selected vertical groove (11a) to determine a direction and/or a position of the protective device (1) in the compressor.

Abstract: A protective device (1) which is attached on an internal side of a compressor, includes a housing (10) of an insulating material, a motor protector (20) placed on the housing (10) and having a thermally responsive switch inside, a fuse device (30), a connective terminal (40) electrically connected to a hermetic terminal in the compressor, and a quick connect terminal (50). A portion (11) of the housing for varying an installation position of the connective terminal (40) includes a plurality of vertical grooves (11a) and a horizontal slot (11b). These grooves and slots (11a and 11b) are formed equally spaced from one another at a periphery of the housing (10). The connective terminal (40) has an engaging part (41) and a fuse connecting part (43). The fuse connecting part (43) is inserted through the horizontal slot (11b), and the engaging part (41) is engaged with a selected vertical groove (11a) to determine a direction and/or a position of the protective device (1) in the compressor.

Abstract: In a sealed casing (2) there are provided a bimetal disc (8) which carries out the switching of an electric current path by snapping between oppositely dished configurations in conformity with the level of the electric current that flows therethrough and ambient temperature by moving a movable contact (10) into and out of the electric current path. A fuse terminal (14, 15, 141, 142, 143, 144) is connected in series with the bimetal disc (8) and shuts off the current path by being melted by an over-current. The fuse terminal (14) in one embodiment is fixed on one surface of a support member (3) that serves as a heater. The fuse terminal (14) and the bimetal disc (8) are connected through a connective pin (12) which is provided through the support member (3) electrically insulated therefrom. In another embodiment the bimetal disc (8) and the fuse terminal (15) are disposed on opposite face surfaces of support member (3).

Abstract: A terminal connector (10, 60, 80, 100, 120, 142) for connecting a lead wire to a terminal which is a component of a current path so that the current path will be established. The terminal connector has a lead wire attachment portion (12, 62, 82, 102, 122, 144) which is fixed to the terminal connector with continuity maintained with respect to the lead wire, a terminal mounting portion (13, 63, 83, 103, 123, 143) mounted on the terminal, a fuse portion (14, 64, 84, 104, 124, 145) which electrically connects the lead wire fixing portion and the terminal mounting portion to each other and which melts at a predetermined overcurrent, and a reinforcement portion (15, 85, 105, 125, 146) which protects the fuse portion against external forces.

Abstract: Almost no consideration has heretofore been given to power saving of an uninterruptible power supply apparatus (UPS) and to power saving of a total system including power saving of the load apparatus connected to the UPS and the devices attached to the load apparatus thus wasting electric power and indicating need for improvement.