| 摘要 |
#CMT# #/CMT# The overvoltage protection unit (1) has a circuit board (2) with two thermal fuses (3,4) and two varistors (5,6). The overvoltage protection unit has an acoustic warning element and a gas conductor (8). The circuit board has a through-hole or a recess at the periphery. The two varistors and the two thermal fuses are provided on the circuit board in contactable vicinity. #CMT#USE : #/CMT# Overvoltage protection unit for use in switch box and power socket-insert. #CMT#ADVANTAGE : #/CMT# The circuit board has a through-hole or a recess at the periphery, and the two varistors and the two thermal fuses are provided on the circuit board in contactable vicinity, and hence ensures re-fitting of protective contact-power socket with small structure of the overvoltage protection unit and thus a layering of components on a side of the circuit board is avoided and the accessibility of the individual components is improved. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of the component side of the circuit board from the unit. 1 : Overvoltage protection unit 2 : Circuit board 3,4 : Thermal fuses 5,6 : Varistors 8 : Gas conductor. |
