RiLine fuse elements NH fuse-switch disconnectors Electronic fuse monitor The electronic fuse monitor is used to monitor proper func- tioning of the fuses, and has a test button for easy simula- tion of a defective fuse during commissioning. The auxil- iary power for the electronics is generated from the input side of the three-phase network. For technical reasons, the rated frequency of the supplying network must not be exceeded, otherwise the electronic fuse monitor will be damaged. Use in conjunction with motors in frequency converter mode is one such example. In such cases, electronic fuse monitoring must only be used as rotary current fusing for the frequency converter on the input side, and not in the frequency-modulated motor supply leads. A green and a red LED display indicate the operating status of the elec- tronic fuse monitor. Note: The fuses used MUST be designed with live puller lugs. Electromechanical fuse monitor Unlike an electronic monitor, this system operates without auxiliary power, yet still performs the same functions. This may also be used for DC voltages as follows: DC 24 … 250 V DC 100 … 600 V 22 21 13 14 22 21 13 14 22 13 5 22 13 21 14 21 14 2 T1 4 T2 6 T3 The rocker switch on the operating housing additionally provides a visual display of the operating status. Note: The fuses used MUST be designed with live puller lugs. Arc chambers to increase switching capacity The clearance for the arc is exposed by simply levering out the plastic strip on the switch blade dome. The required arc chamber is clipped into position from the front for sizes 1 to 3 and increases the utilisation category by up to 2 levels. 2- 13 Technical System Catalogue/Power distribution
Technical System Catalogue RiLine60
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