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Circuit breakers - DANFOSS INDUSTRIAL AUTOMATION
Circuit breakers - DANFOSS INDUSTRIAL AUTOMATION
Danfoss offers a comprehensive range of industrial circuit breakers designed to protect electrical circuits against overloads and short circuits. These devices, also known as motor protection circuit breakers or manual motor starters, are capable of interrupting current flow when it exceeds a prese...
Circuit breakers - DANFOSS INDUSTRIAL AUTOMATION
Danfoss offers a comprehensive range of industrial circuit breakers designed to protect electrical circuits against overloads and short circuits. These devices, also known as motor protection circuit breakers or manual motor starters, are capable of interrupting current flow when it exceeds a preset threshold, preventing damage to downstream equipment. Unlike fuses, they do not need replacement after a fault; they simply reset. The range covers current ratings from 0.1 to 90A in AC-3 category, with models like the CTI25MB series providing significantly higher breaking capacity thanks to integrated current limiters. Key technical parameters include number of poles (typically 3P), rated operational voltage up to 690V, and adjustable thermal and magnetic trip settings. An extensive selection of accessories—such as auxiliary contacts, undervoltage and overvoltage release coils, alarm contacts, and busbar systems—enhances flexibility for integration into various control panels.
These circuit breakers are primarily used in industrial automation environments, including motor control centers (MCCs), distribution boards, and machine control panels. They are ideal for protecting motors, transformers, and other inductive loads in sectors like manufacturing, HVAC, water treatment, and material handling. Their compact design allows for easy mounting on DIN rails or direct panel installation, making them suitable for both new installations and retrofits. The devices are also commonly employed in applications requiring frequent switching and reliable protection against phase loss or imbalance.
The main subcategories include the CTI25M and CTI25MB series, which differ in breaking capacity. The CTI25MB series, for example, offers enhanced short-circuit interruption performance. Article codes typically follow a pattern like "CTI25M-xxx" or "CTI25MB-xxx", where "xxx" denotes the rated current setting (e.g., 0.1-1A, 1-4A, 4-10A, etc.). Other relevant series include the CTI32 and CTI63 for higher current ranges up to 90A. These breakers are often paired with contactors and overload relays to form complete motor starter assemblies.
Partnering with Electric Automation Network ensures access to genuine Danfoss circuit breakers with real-time pricing and stock availability. Our team of specialized engineers provides technical support for product selection, configuration, and troubleshooting. We offer express worldwide shipping, ensuring minimal downtime for your operations. Detailed technical documentation, including datasheets and wiring diagrams, is available for each article.
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