Molded сase сircuit breaker with electronic block FMC4Еі are used in a low-voltage distribution and protection against overcurrent,short circuit switchboard equipment as well as single phase-to-earth fault.
Long delay current range: 0.4-1.0xIn
Long delay current setting: 160-400А with increment by 1A
Long delay time: 12-150s with increment by 1s+OFF
Short circuit protection of low level faults: 320-4800А with increment by 1A+OFF
Short time: 0.06-1s with increment by 0.02s+OFF
Short circuit protection of high level faults: 640-5600А with increment by 1A+OFF
Pre trip alarm setting multiple: 112-400А with increment by 1A
CAD files
Molded сase сircuit breaker with electronic block FMC4Ei 400А
Standards | IEC/EN 60947-2 |
Rated release current In, A | 400 |
Rated frequency, f, Hz | 50/60 |
Rated voltage of the insulation Ui, V | 800 |
Rated voltage Un, V | ~690 |
Number of poles | 3 |
Rated operating breaking capacity Ics, kA (AC 380/415V) | 75 |
Limiting operating breaking capacity Icu, kA (AC 380/415V) | 1000 |
Commutation wear resistance (electric/mechanical) | 1 000/4 000 |
Electronic LCD Display | yes |
Front bus connection | yes |
Rear-mounted bus connection | yes |
Connecting of additional devices | yes |
Altitude above sea level, m | 2000 |
Operating temperature range, °C | -25…+55 |
Storage temperature range, °C | -25…+70 |