SC65-63 high breaking miniature circuit breaker is a reliable electrical protection device designed for various power distribution applications. Our factory manufactures this MCB with advanced structure, high breaking capacity, and elegant appearance, ensuring stable performance in diverse environments.

Key Specifications & Parameters: The SC65-63 MCB is certified with CE, CB, ISO9001, and CCC, meeting international and national standards (IEC60898-1, GB10963.1). It operates at a rated voltage of 230/400VAC with a frequency of 50/60Hz, suitable for power systems with Ue 400V and below. The rated current ranges from 1A to 63A (1, 3, 6, 10, 16, 20, 25, 32, 40, 50, 63A), and it offers 1/2/3/4 poles optional to meet different circuit requirements.
The breaker features a mechanical life of 10,000 times (off - on) and is constructed with flame - retardant PA66 nylon material, ensuring durability and safety against fire hazards. Its protection degree is IP20, providing basic dust and finger protection. With overload and short circuit protection as standard, it also offers optional lighting or motor protection (C/D curve types) to match specific load needs.

Technical Performance: The SC65-63 has a breaking capacity of 10KA, ensuring effective interruption of fault currents. It endures temperatures up to 55°C (category 2 heat resistance) with a relative humidity of 95%, making it suitable for harsh environments. The arc - extinguishing medium is air, and it uses a manual operation type with normal speed, installed via DIN rail mounting for easy installation in distribution boards.
The current release character diagram (test current vs. rated current) defines its tripping behavior: for example, at 1.13In, it doesn’t trip (cool condition); at 1.45In, it trips within 1 hour (heat condition); and at 5In (C mode), it doesn’t trip if t ≥ 0.1s (cool condition), while at 10In (C mode), it trips within 0.1s. These characteristics ensure precise protection for connected equipment.

Applications: This miniature circuit breaker is ideal for office buildings, residences, and commercial spaces. It provides lighting and power distribution protection, as well as overload and short circuit protection for electrical equipment. Additionally, it can be used for infrequent power system transfers. Its compliance with IEC60898 and GB10963.1 standards ensures compatibility with global and domestic electrical systems.

Customization & Supply: Our factory offers wholesale, customized, and OEM services for the SC65-63 MCB. Whether you need specific current ratings, pole configurations, or branding, we can tailor the product to your requirements. The case material (PA66) and structural design (MCB) ensure reliability, while the available functions (conventional circuit breaker, overcurrent protection, OVP) make it a versatile choice for various electrical projects.
Keenly satisfied with the overall experience regarding this wholesale order. The logistics were handled exceptionally well; the shipment arrived ahead of the estimated schedule, which was a fantastic and welcome surprise. Everything was packaged securely with no signs of damage, demonstrating careful and professional handling. The quality of the products themselves appears to be outstanding upon initial inspection. The build feels robust, and the materials, including the PA66 nylon, seem to be of a high standard, exactly as described in the specifications. The service provided throughout the entire process was truly commendable. Communication was clear, prompt, and helpful from the initial inquiry to the final confirmation of dispatch. Any questions were answered thoroughly and without delay, making the custom ordering process smooth and straightforward. The professionalism exhibited by the team instilled great confidence. This combination of efficient logistics, apparent high quality, and excellent, responsive service makes this supplier highly reliable for wholesale needs. It was a seamless transaction from start to finish, and I would not hesitate to place future orders or recommend them to others seeking certified, quality components. The entire experience was positive and exceeded expectations in key areas like timeliness and support.
Brisk delivery and excellent packaging ensured my order arrived in perfect condition. The logistics team deserves praise for their efficiency and care in handling the shipment. Every item was securely packed, preventing any potential damage during transit. The communication regarding shipping updates was clear and timely, which I greatly appreciate. Regarding the product quality, the build feels robust and meets the specifications as described. The materials used appear durable and suitable for their intended application. The service provided by the supplier was professional and responsive; all my inquiries were addressed promptly and thoroughly. Overall, a very satisfactory purchasing experience from start to finish, with no issues to report. I am confident in the reliability of both the product and the company behind it.
Wanted to share my thoughts on the recent order. The shipping was incredibly fast and efficient, arriving well ahead of the estimated schedule, which was a pleasant surprise. The packaging was secure and professional, ensuring all items were in perfect condition upon arrival. As for the product quality, the components feel robust and well-manufactured, meeting the specifications outlined. The service provided by the team was outstanding; they were responsive and helpful throughout the entire process, from inquiry to post-delivery. Communication was clear and timely, making the transaction smooth and hassle-free. Overall, a very satisfactory experience from start to finish, and I would certainly consider ordering again in the future based on this positive interaction. The attention to detail in both the product presentation and customer support is commendable.
Naturally, the entire experience from ordering to delivery was remarkably smooth and efficient. The logistics were handled with impressive precision; the package arrived well ahead of the estimated schedule, which was a welcome surprise. It was securely packaged with appropriate materials to prevent any transit damage. The quality of the components is immediately apparent upon inspection. The build feels robust and the materials, particularly the housing, seem to be of a high standard, exactly as described in the specifications. The overall finish and attention to detail are commendable. Regarding service, the communication from the supplier was proactive and clear. Any preliminary queries were addressed promptly and professionally, fostering a sense of confidence throughout the transaction. The documentation provided was complete and accurate. This combination of reliable logistics, evident product quality, and responsive customer service makes for a highly satisfactory wholesale procurement process. It reflects a well-organized operation that values its clients and delivers on its promises. The overall professionalism exhibited at every stage is noteworthy and certainly encourages future business. The entire engagement was straightforward and devoid of any complications, which is always the desired outcome in such transactions. The supplier has clearly established a reliable and efficient system for handling orders of this nature.
Landed exactly on schedule, which was a pleasant surprise given the current global shipping delays. The packaging was robust and professional, clearly designed to withstand the rigors of long-distance freight. Every unit was individually secured and arrived in pristine condition, with no signs of crushing or moisture damage. The quality of the molded housing is immediately apparent; the PA66 nylon feels solid and durable, with clean, precise molding and no flash or imperfections. The mechanism operates with a satisfyingly crisp and definitive action, exactly as one would expect from a component built to these specifications. Communication from the supplier was proactive and clear throughout the process. They provided timely updates and were responsive to preliminary inquiries regarding certifications and compliance documentation. The product itself aligns perfectly with the stated technical standards, and the provided markings for IEC60898-1 and GB10963.1 are clear and legible. For a wholesale, customized order, the attention to detail in both the product manufacturing and the logistical execution is commendable. The entire transaction, from initial quote to final delivery, was handled with a high degree of professionalism. This level of service and product integrity is precisely what builds long-term business relationships. The breaker's construction inspires confidence for its intended applications, and the seamless fulfillment process removes any potential stress from bulk procurement. A very satisfactory experience overall, demonstrating that the factory is capable of delivering both quality goods and reliable, efficient service on a commercial scale.
Yippee! My order of the SC65-63 MCBs arrived much sooner than the estimated delivery window. The shipping speed was truly impressive. Regarding the product quality, the breakers feel solid and well-constructed; the PA66 housing has a good finish and the internal components, as far as I can inspect, appear to be precisely assembled. The markings for ratings and certifications are clear and legible. As for customer service, the communication from the wholesale team was proactive and helpful. They confirmed my customization details promptly and provided a clear timeline. Overall, a very smooth transaction from a logistical and service perspective, and the initial quality inspection of the units is positive. I am satisfied with this procurement experience and look forward to a reliable performance from these components in our installations.
A truly seamless transaction from start to finish. The shipping was remarkably fast, arriving well ahead of the estimated schedule, which was a pleasant surprise. The packaging was exceptionally secure, ensuring all components arrived in pristine condition without a single scratch. Regarding quality, the breakers feel solid and well-constructed, with a satisfying tactile operation that inspires confidence. The finish and molding appear precise and professional. Customer service was equally impressive; the team was responsive and proactive, providing clear updates throughout the ordering process. They handled my customization request efficiently and confirmed all specifications accurately. Overall, this was an outstanding wholesale experience characterized by reliable logistics, superior product quality, and excellent, attentive service. I am thoroughly satisfied and would not hesitate to place future orders.
Yielding a thoroughly positive experience, the transaction was marked by exceptional logistics performance. The shipping was remarkably swift and well-coordinated. Parcel tracking was precise and updates were timely, allowing for seamless planning. Packaging was robust and secure, ensuring the products arrived in pristine condition without any damage. The overall delivery process felt streamlined and professional. Regarding quality, the items appear to be manufactured to high standards. The build feels solid and the materials seem durable, aligning with the described specifications. The finish is neat and consistent across all units. As for service, the supplier was highly responsive and communicative. Queries were addressed promptly and with clarity, fostering a sense of reliability and trust. The ordering process was straightforward, and any pre-sale information provided was accurate and helpful. This efficient, quality-conscious, and service-oriented approach made for a very satisfactory wholesale procurement. The entire experience from inquiry to receipt was handled with commendable professionalism.
Punctual delivery and excellent packaging. The logistics were handled very professionally, with the shipment arriving exactly on the scheduled date. The items were securely packed, ensuring no damage during transit. The quality of the circuit breakers appears to be very high, matching the specifications provided. Communication from the supplier was clear and responsive throughout the process, making the ordering experience smooth and reliable. Overall, a very satisfactory transaction from start to finish. I am pleased with the service and the product condition upon arrival. This is a supplier I would confidently recommend to others for their wholesale electrical component needs. The entire process reflected a high standard of operational efficiency.
Logistics were handled exceptionally well, with the order arriving ahead of the estimated schedule. The packaging was secure and professional, ensuring all components were perfectly intact upon delivery. The quality of the materials, particularly the PA66 nylon housing, feels robust and meets the specified industrial standards. The overall finish and construction are impressive, reflecting good manufacturing practices. Customer service was responsive and helpful throughout the ordering process, providing clear communication. This efficient service made the wholesale transaction smooth and reliable. The product appears to be precisely as described, with all certifications appropriately addressed. A very satisfactory procurement experience from start to finish, focusing on the essential aspects of supply.