Range: MSX Moulded case circuit breakers for power distribution
The moulded case circuit breakers MSX range is made up of circuit breakers with thermo-magnetic release, circuit breakers with thermo-magnetic release and Overcurrent Protection, circuit breakers with electronic release and switch disconnectors.
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DescriptionInterruttore non automatico scatolato
CodeMSXM 1250
No. of poles4P
Rated current1250 A
Release-
ELECTRICAL CHARACTERISTICS-
MECHANICAL CHARACTERISTICS-
StandardIEC/EN 60947-2
ExecutionFixed
Use categoryAC-23A, DC-22A
DIN rail mountingNo
Rated frequency (Hz)50 / 60
Can be equipped with motor operatorSì
Rated operating voltage (Ue)690 Vac - 250 Vdc
Compatible interlock-
Rated impulse withstand voltage (Uimp)8 kV
Terminals suppliedRear RC
Overvoltage categoryIV
Assembly positionAny
Insulation voltage (Ui)800 V
Upline/downline power supplySì
Thermal regulation-
Electrical life (415Vac)4.000 cycles
Magnetic regulation-
Mechanical life5.000 cycles
Neutral protection-
Operating temperature-5°C +65°C
Total power loss281.24 W
Stocking temperature-20° +65°
Rated short-circuit current making capacity (Icm)32
Weight (kg)23.4
Rated short-time withstand current for 0,3s (Icw)15 kA
NOTES: the codes with the final letter B indicate MMCB's with mechanical interlock wire already mounted (interlock cable to be ordered separately). EQUIPMENT: operating lever extension for manual closing and opening operations.