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The 250A 3P MCCB Molded Case Circuit Breaker is a high-performance electrical protection device designed for industrial applications. This circuit breaker combines advanced international technologies to provide reliable overload, short circuit and under voltage protection for power lines and equipment.
With a rated insulation voltage of 800V and suitable for AC 50Hz systems, this MCCB operates at working voltages up to 690V. It features three breaking capacity classifications: L type (standard), M type (high breaking), and H type (ultra-high breaking) to meet various application requirements.
The breaker can be installed in either vertical or horizontal orientation and is designed for use in environments with elevations up to 2000 meters. It operates reliably in ambient temperatures ranging from -5°C to +40°C, with pollution level 3 and installation category III/IV ratings.
Key features include compact size, high breaking capacity, short arcing characteristics, and excellent vibration resistance. The instantaneous action characteristic setting is 10In±20% for distribution protection and 12In±20% for motor protection applications.
This MCCB is ideal for both land and marine applications where reliable circuit protection is required. The thermo-electromagnetic (double) tripping device ensures precise protection coordination, while the fixed installation design provides stability in various operating conditions.
I was initially concerned about the shipping time for such a specialized industrial component, but the logistics were handled exceptionally well. The breaker arrived ahead of the estimated schedule, which was a very pleasant surprise. The packaging was robust and professional, clearly designed to protect sensitive electrical equipment during transit. There was no damage whatsoever, and all documentation, including the CE and CCC certificates, was included and clearly legible. Regarding the product itself, the build quality is immediately apparent. The molded case feels solid and durable, with no imperfections in the housing. The terminals are well-machined and the overall finish suggests careful manufacturing standards. It has the heft and precision one expects from a proper industrial-grade protective device. While I haven't installed it yet for a final operational test, the initial inspection leaves me confident in its specifications for high breaking capacity. The service aspect was also commendable. Communication was clear and prompt, with any pre-shipment inquiries answered thoroughly and without delay. The seller demonstrated good knowledge of their product line. Overall, this was a very smooth transaction from start to finish. The combination of faster-than-expected delivery, the obvious physical quality of the MCCB unit, and the professional service provided makes this a purchase I am completely satisfied with. I would not hesitate to source similar components from this supplier in the future for our power distribution projects.
Zippy delivery was the first thing that impressed me. The package arrived well ahead of the estimated schedule, which was a fantastic start. The breaker itself feels incredibly solid and well-made, with a substantial heft and clean, precise molding that speaks to good manufacturing standards. The CE and CCC markings are clearly and professionally stamped, which is crucial for our compliance checks. Communication from the seller was proactive and clear throughout the process, answering my pre-shipment questions promptly. Everything was packaged securely with ample protective material, and all documentation was included. While I haven't installed it into our distribution panel yet for final operational testing, the initial physical inspection and the overall purchasing experience have been thoroughly positive. This level of attention to logistics, apparent product quality, and customer service makes the process smooth and reliable.
