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We've got about 200 units in stock right now, so lead time is typically 5-7 working days on these—shippng can go out same week if you order before noon. It's basically the CM1-1P 250A single pole air circuit breaker, and it come with a fixed installation setup, so you'll need to plan your panel layout accordingly.
250A at 240V or 415V, 50/60Hz, and the breaking capacity hits up to 50kA, which is better than most standard breakers for this class. The insulation voltage is 690V, so it handles the higher end of industrial distribution without much trouble. Arc extinguishing is air-based, pretty much standard for MCCBs, and contacts are silver over copper—good conductivity and they don't slip under load.
One thing we've noticed handling these: the housing is flame-retardant PA66/PC, which makes it sturdier than the usual ABS stuff, but it's not suited for outdoor use unless you're in a climate-controlled box. Operating temp is -5°C to +40°C, storage goes to -25°C, so it's fine for most factory floors.
It complies with IEC60947-2 and has CE and ISO9001 certs, so COAs are availble on request—(usually takes 2-3 days to pull together). The terminal material is copper, which is better than some of the nickel-plated variants you'll see elsewhere, but confirm your lug size when ordering because the fixed terminals are a tight fit for bigger cables.
Anyway, if you're running overcurrent protection on a single-phase panel or a dedicated machine circuit, this breaker works well—most buyers go with the 250A for high-draw equiment. Just be aware that the 1-pole version doesn't handle 3-phase setups, so check your wiring beforehand.
We typically start at 50 units for this model, but we can negotiate smaller trial orders if you're just testing it out.
Yes, we can provide copies of both CE and ISO9001 certifications along with the shipment.
Standard lead time is around 15-20 working days after order confirmation, depending on stock levels.
No, the ≤50kA breaking capacity is fixed for this model. If you need a lower rating, check our CM1 series variants.
The silver/copper contacts are standard for this model to ensure reliable overcurrent protection. We don't offer alternative contact materials for the CM1-1P 250A.
