Product Summary
Siemens circuit breakers are protective devices that prevent equipment and machinery malfunctions by detecting abnormalities in electrical circuits and interrupting the current. They are used in a variety of locations, including factories, infrastructure, and building facilities, for low-voltage power distribution applications, and Siemens offers products that can handle everything from small-capacity branch circuits to large-capacity main circuits.
This page introduces various circuit breaker products that can be selected according to capacity and application.
Product features
■ Supports a wide range of capacities
We offer a range of products that can handle everything from small-capacity branch circuits to large-capacity main circuits, allowing us to provide circuit protection tailored to the scale of the equipment and its application.
■Flexible configuration and expandability
The modular design allows for flexible adaptation to adding functions and changing configurations to suit specific applications.
■Protection performance that supports equipment operation
By detecting and shutting off abnormalities such as overloads and short circuits, it contributes to preventing problems with electrical equipment and devices.
Product Line
Miniature Circuit Breaker (MCB)
Miniature circuit breakers (MCBs) are breakers primarily used for protecting small capacity circuits and are widely adopted in branch circuits within distribution panels and power supply circuits for various equipment. They quickly shut off the circuit in the event of abnormalities such as overload or short circuits, preventing damage to cables and connected equipment and reducing the risk of equipment malfunctions and shutdowns.
As electrical equipment becomes more decentralized and automated, it plays a crucial role as a fundamental device that ensures reliable protection at the circuit level.
Its design minimizes the space required inside the control panel and is easily compatible with multi-circuit configurations.
It is compatible with DIN rail mounting, making installation and replacement work easy.
By combining it with various accessories such as auxiliary contacts and tripping mechanisms, circuit protection configurations can be tailored to the specific application.
By reliably shutting off the circuit in the event of an anomaly, this system helps reduce the risk of equipment shutdown and damage.
Circuit breaker (MCCB)
Miniature circuit breakers (MCCBs) are breakers used to protect medium-capacity circuits and equipment, and are widely used for protecting machinery, motors, and power distribution equipment. By detecting abnormalities such as overloads and short circuits and interrupting the circuit, they prevent damage to equipment and equipment shutdowns, supporting the stable operation of electrical equipment.
Compared to MCBs designed for small capacity circuits, this device can handle higher current ranges and plays a crucial role in protecting the entire system and its circuit configuration.
A range of products are available to accommodate various current capacities, allowing for circuit protection tailored to the scale and application of the equipment.
The modular design allows for configuration changes to suit different applications, such as adding protective or auxiliary functions.
Our products comply with international standards such as IEC and UL, and we can accommodate overseas equipment and equipment intended for export.
By shutting down only the necessary circuits in the event of an anomaly, this system contributes to reducing the risk of the entire system shutting down.
By configuring trip characteristics and selecting functions, operation can be tailored to the protected object and operating environment.
Air-insulated circuit breaker (ACB)
Air circuit breakers (ACBs) are breakers used to protect high-capacity power supply circuits and are used in the main circuits of power receiving equipment and distribution panels. By interrupting the circuit in the event of abnormalities such as overload or short circuit, they protect the entire electrical system and ensure a stable power supply.
This is a crucial piece of equipment that significantly impacts the operation of the entire power system, including the protection of major equipment such as motors, transformers, and generators.
It can handle currents ranging from several hundred amperes to several thousand amperes and is used to protect the power supply lines of the entire facility.
By reliably shutting off the affected circuit when an anomaly occurs, we can prevent the accident from escalating and minimize its impact on the entire system.
The modular design allows for the addition of functions and configuration changes to suit different applications and equipment configurations.
By linking with higher-level control systems, it can be used for monitoring equipment status and energy management.
Our products comply with international standards such as IEC and UL, and we can accommodate overseas equipment and equipment intended for export.
Siemens related products
While circuit breakers are essential devices for protecting electrical equipment, their combination with control, monitoring, and networking equipment is also crucial for ensuring stable operation of the system.
Siemens also offers control devices and monitoring systems that can be used in conjunction with circuit breakers.
Inquiry
When selecting circuit breakers, it's not enough to simply choose the capacity and type; appropriate protection design is required according to the equipment configuration, load conditions, and operating methods. Especially in medium to large capacity circuits, the selection and configuration of the models can affect the overall stability and operability of the equipment, so appropriate consideration according to the application is crucial.
At Macnica, we offer customized proposals for optimal circuit breaker selection and configuration tailored to your specific application and equipment requirements. Please feel free to contact us for consultations and quotes.