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Description
LV431142Main Range Compact Product name Compact NSX Product or component type Circuit breaker Device short name Compact NSX250B Device application Distribution Poles description 3P Protected poles description 3t Network type AC Network frequency 50 60 Hz [In] rated current 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 B 25 kA 415
Main
| Range | Compact |
| Product name | Compact NSX |
| Product or component type | Circuit breaker |
| Device short name | Compact NSX250B |
| Device application | Distribution |
| Poles description | 3P |
| Protected poles description | 3t |
| Network type | AC |
| Network frequency | 50/60 Hz |
| [In] rated current | 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 | B 25 kA 415 V AC |
| Breaking capacity | 15 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 40 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 |
| [Ics] rated service breaking capacity | 20 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 25 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 40 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 15 kA at 500 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 | Micrologic 2.2 |
| Trip unit technology | Electronic |
| Trip unit protection functions | LSoI |
| 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 | LED 90 % Ir LED ready LED 105 % Ir |
| Protection type | L : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection |
| Trip unit rating | 100 A at 40 °C |
| Long time pick-up adjustment type Ir | Adjustable 9 settings |
| Long time pick-up adjustment range | 0.9...1 x Io |
| Long time delay adjustment type | Fixed |
| [tr] long-time delay adjustment range | 11 s at 7.2 x Ir 16 s at 6 x Ir 400 s at 1.5 x Ir |
| Thermal memory | 20 minutes before and after tripping |
| Short-time pick-up adjustment type Isd | Adjustable 9 settings |
| [Isd] short-time pick-up adjustment range | 1.5...10 x Ir |
| Short-time delay adjustment type | Fixed |
| Instantaneous pick-up adjustment type Ii | Fixed |
| Instantaneous pick-up adjustment range | 1500 A |
| 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 |
| 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.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 814 reviews
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Product Reviews
★★★★★ 1
Not as I expected
Color: Chew Pair, Size: Mini (Pack of 2)
The chew pair is so small. It looks more like it is for a hamster than for a small dog of almost any size. What a waste of money!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
★★★★★ 3
Not worth it
Color: Chew Pair, Size: Mini (Pack of 2)
My 3 month old Bernedoodle chewed up the string in about 5 min. But she really likes the barbell part and it’s held up well.
I’m not even going to give her the bone toy, after reading these reviews.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 19, 2020
★★★★★ 5
Nanner
Color: Chew Pair, Size: Mini (Pack of 2)
My fur baby loves her toys
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
★★★★★ 5
Must have dog toy!
Size: Extra Small, Style: Bristle Bone
I bought the PetSafe Busy Buddy Treat Ring Variety Pack for our 15 lb Shih Tzu and he absolutely LOVES it. The second he sees me pull it out, he gets so excited. We use it mostly to keep him entertained while we pull our cockatiels out of their cage for the day.
This is such a great toy for mental stimulation and keeping him busy. It’s interactive, keeps him focused, and makes treat time last longer instead of him just inhaling snacks in two seconds.
The rings are extremely durable, they treats fit really well, and it’s nice having a variety pack. It’s also a great option for small dogs who need enrichment without it being too heavy or difficult to use. The rings have no odd smell like other toys do. They come in an array of sizes and this particular one has little bristles that work as a tooth brush while he is using it as well.
Highly recommend if you’re looking for an enrichment toy, treat toy, or something to keep your dog entertained at home especially if you are using it for what we are.
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Reviewed in the United States on January 15, 2026
★★★★★ 5
The best safe, chew toy that offers variety and a challenge to keep your dog occupied.
Size: Medium, Style: Bristle Bone
My 60-lb, male Golden Retriever LOVES this bone. My first mistake was I put it together too tight; second mistake I loosened it too much and he had it pulled apart in no time. Now, it's just right. He wasn't sure about it, honestly, for about 5 hours. He is a chewer, he gets bored quickly, he's such a great dog I wanted him to have something indestructible, safe, and allow him different types of chewing in one toy. OH MY GOODNESS! This toy checks all the boxes. I did think I bought a Large; turned out to be a medium which is really perfect, for 50 to 90 lb dogs. And what came with this purchases was a bag of the treat rings. So glad I did! Finding the right chew toy to occupy this adorable boy has been a challenge. PetSafe, you met the challenge! Thank you so much!!
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Reviewed in the United States on October 24, 2025