HD = HEAVY DUTY; This switching device is used for the switching of no-load DC or high frequency circuits in the MV switchgears in cabinets or special services. Typically used in chemical plants - electrolysis, production of graphite bars, steel mills - casting, melting etc. The main advantages of this devices are extremly high rated current and robust construction also suitable for extrem conditions.
Rated voltage: 0,01 – 12 kV
Rated current: 8000, 16000, 25000 A (with modular system up to 160 000A)
Rated shorttime current 1s (3s): 63, 80, 100, 120, 160 kA
Rated dynamic current: 375 kA
Rated frequency: DC, 50 Hz (100 Hz, 120 Hz, 200 Hz)
Mechanical endurance: 2000, 5000, 10000 C-O
Minimum lifetime (years): 40
Drive type: Hand drive, Hand drive via gearbox, motor drive
Motor type: 110V DC, 220V DC, 230V AC, 400V AC
Signaling positions:Limit switches per position, placed direct on main device shaft, Auxiliary cam-switch (high switch capacity)
Insulators type: Fiberglass sheets, Epoxy resin (upon request)
360 Model
