Low-voltage withdrawable technology (MCC) *Modul-K System*
Characteristics
- Type and accidental arc tested low-voltage system up to 6300A ( IEC 60 439-1 / DIN EN 60439-1, IEC 61641/VDE 0660 Part 500 Supplementary Sheet 2, IEC 60 439-2 in preparation)
- Performance data same as for low-voltage power distributor
- Internal arc-free contact module (insulation encapsulated) with integrated mechanical interlock for protection against operating error
- Mutually locked operating, isolating and test positions with operating key when compartment door is closed
- Switching is blocked when main switch is closed or door is open (override possible)
- Operating openings are lockable (by key or padlock)
- Mechanically activated shutter protects personnel from contact to plug-in bus and outlet contacts upon insertion, IP4X
- Internal partitioning as per Form 4b
- 400 or 600mm cable connection compartment
- Uniform drawer width and operating philosophy throughout
- Slim drawer unit dimensions, lowest height = 75mm (1 unit) for motor starters up to 22kW Reversible, 22 drawers may be integrated per panel
- Control by conventional fixed wiring or bus technology (e.g. Profibus)
- Controller terminal block easily accessed from the front for simple maintenance and measurement
- Phase-wise encapsulated, arc-free field distributor bus, 3 or 4 pole
- Cable access from above or below, as required
- Mechanical drawer compartment coding available
- Tested with switching gear from different manufacturers
- Drawer compartment with flaps for ventilation and pressure equalisation
- Drawer compartments can be refitted for 75mm without switching off
- Bus position at rear and/or top
- Additional panel-to-panel isolation and compartment isolation for fulfilling arcing criteria 6 and 7 (system protection) can be arranged individually