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China Molded Case Circuit Breaker Manufacturers, Suppliers, Factory

The Molded Case Circuit Breaker (MCCB) is a type of circuit breaker used to protect electrical circuits and equipment from excessive current. It is a device designed to interrupt the flow of electrical current when it exceeds a certain threshold, thereby preventing damage to the circuit and the connected devices.

MCCBs are typically used in low-voltage applications, such as residential, commercial, and industrial installations. They are capable of handling higher currents compared to other types of circuit breakers, making them suitable for protecting larger electrical systems.

Here are some key features and characteristics of Molded Case Circuit Breakers:

Construction: MCCBs consist of a molded case, which is a protective housing made of insulating materials such as plastic or fiberglass. The case contains the internal components of the circuit breaker, including the trip mechanism, current-carrying contacts, and thermal or magnetic trip units.

Current Ratings: MCCBs are available in a wide range of current ratings, typically from a few amps to several thousand amps. The current rating represents the maximum current the MCCB can handle before it trips and interrupts the circuit.

Trip Units: MCCBs have different types of trip units that provide protection against different types of faults. The two common types of trip units are thermal and magnetic. Thermal trip units respond to overcurrent conditions caused by long-duration, moderate overloads. Magnetic trip units are more sensitive and respond to short-duration, high-current faults.

Adjustable Trip Settings: MCCBs often come with adjustable trip settings, allowing users to set the desired current level at which the circuit breaker should trip. This feature allows for customization based on the specific requirements of the electrical system.

Breaking Capacity: The breaking capacity of an MCCB refers to its ability to safely interrupt the flow of current. It is typically specified in terms of short-circuit current rating (SCCR), which indicates the maximum level of fault current the MCCB can handle without sustaining damage.

Accessories and Features: MCCBs can have additional features and accessories such as shunt trips, auxiliary contacts, undervoltage releases, and lockout/tagout mechanisms, which enhance their functionality and provide additional control and safety options.

Molded Case Circuit Breakers are widely used in electrical distribution systems to ensure the protection of circuits and equipment from overcurrent conditions. They offer reliable and adjustable protection, making them an essential component in electrical installations.


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320A AC MCCB Using New Energy

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Saide Electric Co.,Ltd. was founded in 1998, located in Qiligang industrial zone, Liushi, With a registered capital of 50 million RMB ,we are now a specialized 320A AC MCCB Using New Energy manufacturer combined research, production and sales altogether. With a continuous development of more than twenty years, we obtain mature craftsmanship, advanced equipment & self-design capability now.

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New Energy 320A Molded Case Circuit Breaker

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The SAIDE Electric SDM3 series is a range of new energy 320A molded case circuit breakers designed for both AC and DC applications. These circuit breakers are specifically developed to meet the needs of new energy systems, considering the research conducted on actual system operation situations and customer requirements.

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320A New Energy AC Mccb

320A New Energy AC Mccb

The key features and specifications of the SAIDE Electric SDM3 series of AC and DC Molded Circuit Breaker, specifically the 320A new energy AC mccb variant.

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High Capacity 250A AC Mccb

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The SDM3 series AC and DC Molded Circuit Breaker by SAIDE Electric includes a High capacity 250A AC MCCB variant.

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320A AC High Voltage MCCB

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SAIDE SDM3 320A AC high voltage MCCB series Molded Circuit Breaker, n the votage of AC 800V the maximum breaking capacity is 50kA, which can ensure reliable short-circuit protection of the system.

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100A MCCB thermal magnetic trip

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Saide® SDM6 100A MCCB thermal magnetic trip equips with intelligent controller as well, which not only makes its current adjustable but also grants protection against overload (long delay), short-circuit(short delay), short- circuit(instantaneous) & undervoltage, it'll certainly improve the entire power system's reliability, continuity &security.

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Saide has been producing Molded Case Circuit Breaker for many years and is one of the professional high quality Molded Case Circuit Breaker manufacturers and Suppliers in China. We have our own factory. Products with cheap price or low price is of high quality. Customers are satisfied with our products and excellent service. We sincerely look forward to becoming your reliable long-term business partner!
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