The breaking capacity of the Schneider NSX250A circuit breaker varies depending on its specific model (different suffix types) and corresponding operating voltage. The core breaking capacities of its regular models are categorized as follows, with detailed values under different voltages to support adaptation to various scenarios:
- Model NSX250F: It has a breaking capacity of 36kA. For example, at a voltage of 500V AC, its rated ultimate short-circuit breaking capacity (ICU) can reach 36kA. It is suitable for general civil or ordinary commercial power distribution scenarios and can handle regular short-circuit currents.
- Model NSX250N: It has a breaking capacity of 50kA. For instance, at common industrial power distribution voltages such as 380V/415V and 440V, the ICU can all reach 50kA; at a voltage of 220/240V, the breaking capacity can even reach 90kA. It is suitable for basic power distribution in industrial environments with high requirements for short-circuit protection.
- Model NSX250H/S: It has a breaking capacity of 70-100kA. This type of model is suitable for special occasions with large short-circuit currents. For example, some high-specification models can handle short-circuit currents close to 100kA in low-voltage scenarios and are often used in scenarios with extremely high requirements for power distribution safety redundancy, such as power plants and large-scale industrial production lines.
In addition, there are special subdivided models, such as Model NSX250A. Its breaking capacity is 25kA at a voltage of 415V AC and 40kA at a voltage of 220/240V AC, which is suitable for standard regular power distribution scenarios that require space optimization.
