KNM1L Moulded Case Circuit Breaker
Inquire NowDescription
The KNM1L Moulded Case Circuit Breaker (MCCB with RCCB) is designed for power distribution networks operating at 50/60Hz, with a rated operation voltage of up to 400V (690V). This advanced circuit breaker can handle rated currents of up to 800A, ensuring robust protection against indirect contact and preventing fire hazards caused by insulation and ground faults. It is ideal for distributing electric power and safeguarding power equipment against overloads and short circuits, while also facilitating the infrequent starting of motors.
Electricity Accessories:
- Shunt trip release
- Undervoltage release
- Auxiliary contact
- Alarm contact
- Auxiliary and alarm contact
- Rotary handle operation mechanism
- Motor operation mechanism
- Busbar
Specifications
| Attribute | Values |
|---|---|
| Frame Class | 100, 225, 400, 630 |
| Rated Current In (A) | 40, 50, 63, 80, 100, 125, 140, 160, 200, 225, 315, 350, 400, 500, 630 |
| Rated Voltage AC (V) | 400 |
| Rated Insulation Voltage AC (V) | 750 |
| Rated Pulse Voltage AC (KV) | 8 |
| Ultimate Short-Circuit Breaking Capacity Icu (KA) | 25 |
| Operative Short-Circuit Breaking Capacity Ics | Ics=50%Icu |
| Rated Residual Operating Current (mA) I△n | 30/100/500, 100/300/500, 100/300/500, 300/500/1000 |
| Mechanical Life | 8500, 7000, 4000, 4000 |
| Electric Life | 1500, 1000, 1000, 1000 |
| Rated Residual Un-Operating Current (mA) | 1500, 1000, 1000, 1000 |
| Outline Dimensions (mm) | W: 122, 142, 198, 280; L: 150, 165, 257, 280; H: 90, 90, 106.5, 115.5 |
Additional Information
The KNM1L series is designed for various applications, ensuring safety and reliability in electrical systems. It’s essential to follow proper installation and maintenance guidelines to maximize its performance and lifespan.
