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QM1DC Thermo-magnetic type DC MCCB

description

QM1DC Thermo-magnetic type DC MCCB


Technical Data

Product Selection Guide


QM1DC Thermo-magnetic type DC MCCB

QM1DC125H22
Product codeFrame size rated currentRated ultimate short-circuit breaking capacityPole numberRelease type
DC circuit breaker125, 160, 250,400, 800H :higher level type2:2-pole
3:3-pole
4:4-pole
2-short-circuit release 3-complex release


QM1DC125H2
AccessoryRated operating voltageExternal accessoryWiring method
0: No
2: Auxiliary contact
3: Complex release
DC 500V-1000VNull: body operation
P: electric operation
GZ3: rotary handle
Null: front-board wiring
B: back-board wiring
C: plug-in type


Main Performance Indexes

Frame current (A)125160250
ModelQM1DС-125HQM1DС-160HQM1DС-250H
Pole number2, 3, 42, 3, 42, 3, 4

QM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCB
Rated current (A)10,16, 20, 25, 32, 40, 50,63, 80, 100, 12510, 16, 20, 25, 32, 40, 50,63,80, 100, 125, 140, 160100,125,140,160,180, 200, 225, 250
Rated voltage (V)DC250V, DC500V DC750, DC1000VDC250V, DC500V DC750, DC1000VDC250V, DC500V DC750, DC1000V
Rated insulation voltage (V)DC1000VDC1000VDC1000V
Short-circuit breaking capacity(KA) Icu(Ics=70%Icu)250VDC(35KA), 500VDC(25KA) DC750V(15kA), DC1000V(10kA)
Operating cycle numberElectrical life600030003000
Mechanical life900070007000
Outline dim(mm)

a-b-c-ca


QM1DC Thermo-magnetic type DC MCCB

2P50-130-68-9060-155-88-115-
3P75-130-68-9090-155-88-115105-165-88-115
4P100-130-68-90120-155-88-115140-165-88-115
Weight (kg)2P0.551-
3P0.651.11.5
4P0.81.41.9
Electric operating device (MD)
External driving operating handle
Automatic releaseThermal electromagnetic type


Frame current (A)400800
ModelQM1DС-400MQM1DС-800H
Pole number2, 3, 42, 3, 4

QM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCB
Rated current (A)250,315, 350, 400, 630500, 630, 700, 800
Rated voltage (V)DC250V, DC500V DC750, DC1000V
Rated insulation voltage (V)DC1000VDC1000V
Short-circuit breaking capacity(KA) Icu(Ics=70%Icu)250VDC(35KA), 500VDC(25KA) DC750V(15kA), DC1000V(10kA)
Operating cycle numberElectrical life20001500
Mechanical life40004000
Outline dim(mm)

a-b-c-ca


QM1DC Thermo-magnetic type DC MCCB

2P140-257-103-155210-275-103-155
3P140-257-103-155210-275-103-155
4P184-257-103-155280-275-103-155
Weight (kg)2P59.5
3P5.712.5
4P7.51.4
Electric operating device (MD)
External driving operating handle
Automatic releaseThermal electromagnetic type


DC System Protection

System typeGrounding systemUngrounded system
Various types of reformationOne pole of DC power is groundedNeutral point of DC power is grounded

Fault AMax. Isc that only to the positive poleIsc is close to max. Isc and only to the positive pole, voltage is U/2No effect
Fault effectFault BMax. Isc that includes two polesMax. Isc that includes two polesMax. Isc that includes two poles

Fault CNo effectSame as fault A but only to the negative poleNo effect
The most serious situationFault AFaults A and CFault B
Pole breakingIt can be connected at the positive in series,
and commonly execute the breaking
At each pole, they must be at U/2The two poles to be disconnected are evenly distributed between the two electrodes


Wiring Method

Un<250VQM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCB

Un<800VQM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCB
Un<1000VQM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCBQM1DC Thermo-magnetic type DC MCCB


QM1DC Thermo-magnetic type DC MCCB

QM1DC Thermo-magnetic type DC MCCB

QM1DC Thermo-magnetic type DC MCCB

QM1DC Thermo-magnetic type DC MCCB

QM1DC Thermo-magnetic type DC MCCB

QM1DC Thermo-magnetic type DC MCCB

QM1DC Thermo-magnetic type DC MCCB

QM1DC Thermo-magnetic type DC MCCB