Schneider Electric ComPact NSX100...250 LV431390 molded case circuit breaker, NSX250B basic frame, 3-pole, 250 A, 15 kA Icu at 415 V AC, fixed mount, toggle control, IP40, UL/CSA certified.
| Parameter | Value |
|---|---|
| Control type | Toggle |
| Network type | AC |
| Protection type | Without protection |
| Range of product | ComPact NSX100...250 |
| Product or component type | Basic frame |
| Voltage | 800 V AC 50/60 Hz IEC 60947-2 |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| [Uimp] rated impulse withstand voltage | 8 kVIEC 60947-2 |
| Line rated current | 250 A 104 °F (40 °C) |
| [Ics] rated service short-circuit breaking capacity | 20 kA 440 V AC 50/60 Hz IEC 60947-2 25 kA 380/415 V AC 50/60 Hz IEC 60947-2 40 kA 220/240 V AC 50/60 Hz IEC 60947-2 15 kA 500 V AC 50/60 Hz IEC 60947-2 |
| [Icu] rated ultimate short-circuit breaking capacity | 15 kA Icu 500 V AC 50/60 Hz IEC 60947-2 20 kA Icu 440 V AC 50/60 Hz IEC 60947-2 25 kA Icu 380/415 V AC 50/60 Hz IEC 60947-2 40 kA Icu 220/240 V AC 50/60 Hz IEC 60947-2 |
| Network frequency | 50/60 Hz |
| Parameter | Value |
|---|---|
| Poles | 3P |
| Utilisation category | Category A |
| IK degree of protection | IK07 conforming to IEC 62262 |
| IP degree of protection | IP40 conforming to IEC 60529 |
| Mounting mode | Fixed |
| Mounting support | Backplate |
| Connection pitch | 1.4 in (35 mm) |
| Upside connection | Front |
| Downside connection | Front |
| Pollution degree | 3 IEC 60664-1 |
| Depth | 3.4 in (86 mm) |
| Width | 4.1 in (105 mm) |
| Height | 6.3 in (161 mm) |
| Electrical durability | 10000 cycles 440 V AC 50/60 Hz In IEC 60947-2 10000 cycles 690 V AC 50/60 Hz In/2 IEC 60947-2 20000 cycles 440 V AC 50/60 Hz In/2 IEC 60947-2 5000 cycles 690 V AC 50/60 Hz In IEC 60947-2 |
| Mechanical durability | 20000 cycles IEC 60947-2 |
| Standards | EN/IEC 60947-2 UL 508 |
| Range | ComPact |
| Category | US10DE201101 |
| Device short name | NSX250B |
| Safety category | B 25 kA 415 V AC |
| Device application | Distribution |
| Circuit breaker name | Compact NSX250B |
| Suitability for isolation | Yes EN/IEC 60947-2 |
| Ambient air temperature for storage | -58...185 °F (-50...85 °C) |
| Ambient air temperature for operation | -13...158 °F (-25...70 °C) |
The LV431390 is a Schneider ComPact NSX250B basic frame molded case circuit breaker, rated 250 A continuous with a 15 kA Icu breaking capacity at 415 V AC, in a 3-pole fixed-mount package with toggle control. It carries UL and CSA certifications, meets EN/IEC 60947-2, and is sealed to IP40 with IK07 impact resistance, suited for distribution panels where 3-pole switching and a 250 A feed are specified.
The 250 A continuous rating matches a 250 A bus or feeder tap.
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