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Description
LV431749Main Range Compact Product name Compact NSX Product or component type Circuit breaker Device short name Compact NSX250F Device application Motor Poles description 3P Protected poles description 3t Network type AC Network frequency 50 60 Hz [In] rated current 220 A at 65 C 250 A at 40 C [Ui] rated insulation voltage 800 V AC 50 60 Hz [Uimp] rated impulse withstand voltage 8 kV [Ue] rated operational voltage 690 V AC 50 60 Hz Breaking capacity code F 36
Main
| Range | Compact |
| Product name | Compact NSX |
| Product or component type | Circuit breaker |
| Device short name | Compact NSX250F |
| Device application | Motor |
| Poles description | 3P |
| Protected poles description | 3t |
| Network type | AC |
| Network frequency | 50/60 Hz |
| [In] rated current | 220 A at 65 °C 250 A at 40 °C |
| [Ui] rated insulation voltage | 800 V AC 50/60 Hz |
| [Uimp] rated impulse withstand voltage | 8 kV |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| Breaking capacity code | F 36 kA 415 V AC |
| Breaking capacity | 85 kA at 240 V AC 50/60 Hz conforming to UL 508 22 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 35 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 8 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 85 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 35 kA at 480 V AC 50/60 Hz conforming to UL 508 30 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 15 kA at 600 V AC 50/60 Hz conforming to UL 508 |
| [Ics] rated service breaking capacity | 35 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 85 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 22 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 30 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 8 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 |
| Suitability for isolation | Yes conforming to EN 60947-2 Yes conforming to IEC 60947-2 |
| Utilisation category | Category A |
| Trip unit name | MA |
| Trip unit technology | Magnetic |
| Trip unit protection functions | I |
| Pollution degree | 3 conforming to IEC 60664-1 |
Complementary
| Control type | Toggle |
| Mounting mode | Fixed |
| Mounting support | Backplate |
| Upside connection | Front |
| Downside connection | Front |
| Mechanical durability | 20000 cycles |
| Electrical durability | 10000 cycles 440 V In conforming to IEC 60947-2 10000 cycles 690 V In/2 conforming to IEC 60947-2 20000 cycles 440 V In/2 conforming to IEC 60947-2 5000 cycles 690 V In conforming to IEC 60947-2 |
| Connection pitch | 35 mm |
| Local signalling | Positive contact indication |
| Protection type | I : for short-circuit protection (magnetic) |
| Trip unit rating | 150 A at 65 °C |
| Short-time pick-up adjustment type Isd | Adjustable |
| [Isd] short-time pick-up adjustment range | 9...14 x In |
| Height | 161 mm |
| Width | 105 mm |
| Depth | 86 mm |
| Net weight | 2.4 kg |
| Compatibility code | NSX250 |
Environment
| Overvoltage category | Class II |
| Electrical shock protection class | Class II |
| Standards | EN/IEC 60947 UL 508 |
| Product certifications | EAC Marine CCC |
| IP degree of protection | IP40 conforming to IEC 60529 |
| IK degree of protection | IK07 conforming to IEC 62262 |
| Ambient air temperature for operation | -35…70 °C |
| Ambient air temperature for storage | -55…85 °C |
Offer Sustainability
| Sustainable offer status | Green Premium product |
| REACh Regulation | REACh Declaration |
| EU RoHS Directive | Pro-active compliance (Product out of EU RoHS legal scope) EU RoHS Declaration |
| Mercury free | Yes |
| RoHS exemption information | Yes |
| China RoHS Regulation | China RoHS declaration |
| Environmental Disclosure | Product Environmental Profile |
| Circularity Profile | End of Life Information |
Contractual warranty
| Warranty | 18 months |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
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4.4 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Attractive Hard Cover Book
Format: Hardcover
Excellent source of information! Very interesting!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
Great product at a great price.
Format: Paperback
Great product at a great price. I purchased one every year. Lots of fun to read, and surprisingly accurate and insightful.
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Reviewed in the United States on May 20, 2026
★★★★★ 4
Where Knowledge Creates Wisdom
Format: Paperback
A must-read for anyone seeking the title of King/Queen of Minutae. Weather predictions are typically, freakishly spot-on. There is simply a wealth of information in here that you are better off knowing, or will at least make you popular on trivia night. There are some quality vendors that you don't see online advertising in here too. The only drawbacks are the snowfall total in Florida challenging Central Oregon this winter, and the increase in price over last year. Tariffs on paper?
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Reviewed in the United States on March 30, 2026
★★★★★ 5
Good quality book.
Format: Paperback
Bought these because I bought one for my grandmother every year for Christmas. It is good quality, but I have only opened it one time. I got it for sentimental reasons.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Great !
Format: Paperback
A great book, I’d recommend it to others ! The book came in good condition as well.
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Reviewed in the United States on May 14, 2026