| 摘要 |
A combination includes a heater (1,1',1",1"'), a first connection device (2) and a second connection device (2). The heater has heating resistors (R1,R2,R3); and a heater connector (1a) with electric heater conductors (11) connected to the electric heating elements. The first and second connection devices have first and second output connectors (2a,2b) with conductors (21) for connection to the conductors (11) of the heater connector (1a) and first and second input connector (3a,3b) for connection to first and second standard connectors (4a,4b) of first and second power sources with first and second voltage levels. The electric conductors of the first output connector (2a) have a first connection configuration in the first connection device and the electric conductors of the second output connector (2b) have a second connection configuration in the second connection device different to the first connection configuration. At least two heating elements are so connected to the first electric conductors (11) as to be powered: in the first connection configuration via the first connection device to the first power source; and in the second connection configuration via the second connection device to the second power source. |
