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| Parameter | UKM5-400C | UKM5-400S | UKM5-400H | UKM5-400U | UKM5-630C | UKM5-630S | UKM5-630H | UKM5-630U |
| Frame Rated Current Inm(A) | 400 | 400 | 400 | 400 | 630 | 630 | 630 | 630 |
| Rated current(A) | 250, 300, 350, 400, 500, 630 | 250, 300, 350, 400, 500, 630 | 250, 300, 350, 400, 500, 630 | 250, 300, 350, 400, 500, 630 | 250, 300, 350, 400, 500, 630 | 250, 300, 350, 400, 500, 630 | 250, 300, 350, 400, 500, 630 | 250, 300, 350, 400, 500, 630 |
| Poles | 3, 4 | 3, 4 | 3, 4 | 3, 4 | 3, 4 | 3, 4 | 3, 4 | 3, 4 |
| Rated insulation voltage Ui(V) | AC680 | AC680 | AC680 | AC680 | AC680 | AC680 | AC680 | AC680 |
| Arcing distance(mm) | ≤50(0*) | ≤50(0*) | ≤50(0*) | ≤50(0*) | ≤50(0*) | ≤50(0*) | ≤50(0*) | ≤50(0*) |
| Rated ultimate/
Service short-circuit breaking capacity (KA) |
AC690V: 10/10 AC400V: 45/45 AC230V: 85/85 | AC690V: 10/10 AC400V: 70/70 AC230V: 100/100 | AC690V: 15/10 AC400V: 100/100 AC230V: 150/100 | AC690V: 35/35 AC400V: 125/125 AC230V: 200/200 | AC690V: 10/10 AC400V: 45/45 AC230V: 85/85 | AC690V: 10/10 AC400V: 70/70 AC230V: 100/100 | AC690V: 15/10 AC400V: 100/100 AC230V: 150/100 | AC690V: 35/35 AC400V: 125/125 AC230V: 200/200 |
| Operational performance (times) | ON: 1000 OFF: 4000 | ON: 1000 OFF: 4000 | ON: 1000 OFF: 4000 | ON: 1000 OFF: 4000 | ON: 1000 OFF: 4000 | ON: 1000 OFF: 4000 | ON: 1000 OFF: 4000 | ON: 1000 OFF: 4000 |
| Rated Operation Frequency(per hour) | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
UKM5-400 MCCB 3 Pole 400A Moulded Case Circuit Breaker CE Certified
UKM5 Series Plastic Case Circuit Breakers represent cutting-edge technology designed for the 21st century. These breakers feature advanced engineering and high-performance specifications, with a compact and aesthetically pleasing design.
Select models incorporate microelectronic technology, delivering intelligent control capabilities.
Compliant with GB/T 14048.2 “Low-voltage switchgear and controlgear – Low-voltage circuit breakers” and IEC 60947-2 “Low-voltage switchgear and controlgear – Part 2: Circuit-breakers” standards.
Free Quote NowKey Features
- Rated for voltages up to 690V and currents up to 1600A in 50Hz AC systems.
- Delivers reliable protection against overload, short-circuit, and under-voltage faults.
- Select models feature intelligent control with advanced microelectronics technology.
- Compact and aesthetically pleasing design to save valuable panel space.
- Built for harsh conditions, rated for Pollution Degree 3 and Installation Category III.
- Wide operating temperature range from -5°C to +40°C, suitable for altitudes up to 2000m.
- Clear power source (1,3,5,N1) and load (2,4,6,N2) terminal markings prevent incorrect wiring.
Application
- Protects industrial power systems from electrical faults like overloads and short-circuits.
- Controls the infrequent starting and stopping of motors in various applications.
- Provides reliable circuit protection for commercial and industrial distribution systems.
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