Features of YS250 Molded Case Circuit Breaker
- Used in DC system with no earthing, one pole earthed, or neutral point earthed
- Maximum 1250A carrying capacity for multiple parallel breakers
- Arcing quench system combines VJC and lSTAC technologies
- Operates at full load at 50℃
- Can be mounted vertically or horizontally
- Includes isolation function
- Complies with lEC60947-2 and GB14048.2 standards
Applications of YS250 Molded Case Circuit Breaker
- Medium and low voltage power systems utilize circuit protection to prevent overload, short circuit, and other faults.
- Industrial control systems rely on circuit protection to safeguard motors, transformers, and other equipment.
- Circuit protection is employed in household, commercial, and industrial building electrical systems. It is also utilized to protect communication equipment and lines.
- Circuit protection is essential in the electrical systems of new energy equipment such as solar and wind energy, ensuring the safe operation of electrical equipment.
Specification of YS250 Molded Case Circuit Breaker
| Parameter | Value |
| Shell frame grade current | 250 |
| Ripping device rated current | 100、125、140、160、180、200、225、250 |
| Number of poles | 4 |
| Rated insulation voltage | 1000V |
| Rated operational voltage | DC 1000V |
| Rated impulse withstand voltage | 8000V |
| Rated ultimate short-circuit breaking capacity | 40 |
| Rated operational short-circuit breaking capacity | 25 |
| Mechanical life | 10000 |
| Electrical life | 5000 |
| Flashover distance | ≯50 |
| Dimension | 142X165X103mm |
| Overload protection | 250-630 A |
| Protection function | 100-250 A
250-360 A |
| Action tolerance | ±20% |
| Work environment | -40℃~+70℃ |
