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| Parameter | Specification |
| Frame size rated current Inm (A) | 250 |
| Rated current In (A) | 100, 125, 150, 175, 200, 225, 250A |
| Rated operating voltage Ue (V) DC | 1000 |
| Rated insulation voltage Ui (V) DC | 1500 |
| Rated impulse withstand voltage Uimp (kV) | 8 |
| Rated ultimate short-circuit breaking capacity Icu (kA) | 15 |
| Rated short-time withstand current Ics (kA) | 15 |
| Mechanical life (operations) | 7,000 |
| Electrical life (operations) | 2,000 |
| Degree of protection | IP20 |
| Operating temperature | -45°C ~ +70°C |
| Mounting type | Fixed |
| Dimensions (L × W × H, mm) | 180 × 80 × 105 |
| Available accessories | Undervoltage trip, auxiliary contact, alarm contact, shunt trip, motorized operating mechanism, rotary handle |
UKM5DC-250 2 Pole 250 amp DC MCCB
The UKM5DC-250 2 Pole 250amp dc mccb is designed for DC distribution and energy storage systems.
With a rated current range from 100A to 250A, rated for 1000VDC and 1500VDC working voltage (Ue) with 1500VDC insulation voltage (Ui), it delivers reliable protection for photovoltaic systems, energy storage applications, and industrial DC distribution boards.
Features 15kA ultimate short-circuit breaking capacity (Icu), it provides overload, short-circuit, and undervoltage protection, ensuring the safety and stability of your DC system.
Free Quote NowKey Features
- Supports 1000V / 1500V DC systems
- Breaking capacity — up to 15kA
- Multiple rated currents: 100, 125, 150, 175, 200, 225, 250A
- Wide operating temperature: -45°C to +70°C
- Long service life: Mechanical life up to 7,000 operations
- IP20 protection for enhanced safety
- Supports various accessories: undervoltage trip, auxiliary contact, alarm contact
- Fixed mounting design for easy installation
Applications
- Photovoltaic DC combiner box protection
- Energy storage battery pack protection
- DC distribution boards and telecom power systems
- Industrial DC control systems
- EV charging facilities
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