DC MCB (Miniature Circuit Breaker), 1,2,4P (1,2,4 Pole) (NO), < = 1000VDC
EKM1-125DCseries Miniature Circuit Breakerswith over current protection range provide a full protection to both the persons and the electrical appliances, as they are designed to automatically cutoff the power supply in case of overload, short-circuit and earth leakage.
They can be used as protection devices for 150~1000VDC network.
Its maximum rated current reaches 125A.
The MCB is equipped with an indication window to distinguish overload trips (indication window turns red).
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- Certificate: CE.
- Rated voltage: 250~1000VDC;
- Applications:
For three-phase and single-phase equipment such as escalators, lifts, photovoltaic systems, welding equipment, inverters, energy storage and other DC applications.
- Altitude: ≦ 2000 metres;
- Ambient temperature: -5 °C ~ +40 °C;
- Installation category： Ⅲ
- Installation conditions: The inclination angle between the mounting plane and the vertical plane shall not exceed ± 5°;
- Standard: GB/T10963.1, IEC60947-2
- 2 years warranty
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Model Number |
EKM1-125DC |
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Electrical Features |
Mode |
Electromagnetic |
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Type |
DC |
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Rated current In |
80, 100, 125A |
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Poles |
1P, 2P, 4P |
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Rated voltage Ue |
250VDC (1P), 500VDC (2P), 1000VDC (4P) |
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Insulation voltage Ui |
500V |
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Rated frequency |
 |
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Break time under (I△n) |
≤0.1s (S type ≤ 0.5s) |
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Rated breaking capacity |
6,000A |
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Energy limiting class |
3 |
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Rated impulse withstand voltage(1.5/50)Uimp |
4,000V |
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Dielectric test voltage at ind.Freg.for 1min |
2kV |
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Pollution degree |
2 |
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Thermo-magnetic release characteristic B :(3-5) x In, C:(5-10) x In, D :(10-20) x In |
B, C, D |
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Mechanical Features |
Electrical life |
4,000 Cycles |
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Mechanical life |
10,000 Cycles |
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Contact position indicator |
Yes |
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Protection degree |
IP 20 |
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Reference temperature for setting of thermal element |
30°C |
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Ambient temperature (with daily average ≤35°C) |
-5°C~+40°C |
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Storage temperature |
-25°C~+70°C |
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Installation |
Terminal connection type |
Cable/ Pin-type busbar / U-type busbar |
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Terminal size top/bottom for cable |
25mm2; 18-3AWG |
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Terminal size top/bottom for busbar |
25mm2; 18-3AWG |
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Tightening torque |
2.5Nm 22In-lbs |
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Mounting |
On DIN rail EN60715(35mm) by means of fast clip device |
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Connection |
From top / button |
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Packing information |
Net weight (Kg) |
0.12 (1P), 0.24 (2P), 0.48 (4P) |
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Product dimensions (H*W*D)(mm) |
81*18*78 (1P); 81*36*78 (2P); 81*72*78 (4P); |
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Qty / Carton (pcs) |
120 (1P); 60 (2P); 30 (4P) |
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G.W. / Carton (Kg) |
15.4 |
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