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ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 4 / f channels

ABB Emax2 Electronic Circuit Breaker 800A 1SDA07, 3 channels


Electronic circuit breakers are automatically operated electrical switches that are designed to safeguard electrical circuits from damage. They work by cutting off a circuit when the current exceeds a safe level, preventing potential damage to equipment and wiring from overloads or short circuits.

These devices can also establish, transmit for a predetermined duration, and interrupt electrical currents under abnormal circumstances. As such, they are known for the reliability and robust protection they offer.

At RS Australia, we carry a wide range of these essential electric components to meet various needs.

## **Why Are Electronic Circuit Breakers Important?**

Electronic circuit breakers are fundamentally important for ensuring safety and reliability across electrical systems, from domestic homes to complex industrial, commercial, and high-power installations.

In residential settings, a main electronic circuit breaker typically protects the entire system, complemented by smaller units integrated into appliances like washing machines and air-conditioning systems.

Beyond the home, these electronic breakers are crucial for preventing hazards, such as overheating, fires, and explosions, which can arise from wiring problems or equipment failures. Furthermore, they also safeguard individuals from electric shock and other potential injuries from electrical faults.

Unlike single-use fuses, electronic circuit breakers can be reset and reused, offering significant advantages in reducing downtime and maintaining operational efficiency in any system. This makes electronic circuit breakers an indispensable component for modern electrical protection.

## **Uses of Electric Circuit Breakers**

The primary function of an electric circuit breaker is to maintain safe operation by interrupting the flow of current when a fault, such as an overload or short circuit, is detected. This is achieved through a combination of processes:

- **Active electronic current limitation**: In the event of a short circuit, an electronic circuit breaker unit limits the current flow, preventing immediate and severe system damage.
- **Overload deactivation**: When excessive current is detected consistently over a period, the electronic breaker automatically deactivates the circuit, safeguarding sensitive components from overheating or failure.

## **Types of Electronic Circuit Breakers**

Electronic circuit breakers come in various forms, each designed to meet specific protection requirements across diverse applications. Let's explore some of the key types available.

### **Electronic MCB (E MCB)**

An Electronic [Miniature Circuit Breaker](https://au.rs-online.com/web/content/discovery/ideas-and-advice/mcb-guide) (E MCB) offers advanced circuit protection with enhanced features compared to traditional MCBs. These electronic breakers are more adjustable and compact, providing greater flexibility in installation and space-saving benefits.

They are widely utilised in both residential and industrial applications, offering precise overcurrent protection for a variety of electrical circuits.

### **Digital Breakers**

Digital breakers allow for highly precise and programmable protection settings, offering significant benefits in terms of customisation and real-time fault management.

Consequently, these advanced electronic circuit breakers are increasingly adopted in smart grids, complex industrial automation systems, and sensitive control systems where exact control over electrical flow is paramount.

### **Electronic Circuit Breaker 24VDC**

An electronic circuit breaker 24VDC is a specialised protective device tailored for low-voltage direct current systems, particularly common in industrial and telecommunications sectors.

They offer rapid response times and fine-tuned protection for sensitive electronic components, ensuring reliability and preventing damage in low-voltage circuits.

## **How to Choose the Right Electronic Circuit Breaker for Your Needs**

To ensure optimal performance and safety, consider the following factors when selecting an electronic circuit breaker for your specific application:

- **Current and voltage ratings**: Ensure the electronic circuit breaker is rated appropriately for your system's current and voltage requirements. For instance, choose an electronic circuit breaker 24VDC for low-voltage DC systems.
- **Mounting style**: The mounting style significantly affects installation. For example, DIN rail mount E MCB units may be more suitable in control cabinets, while panel-mount options are ideal for direct integration into equipment.
- **Protection requirements**: Select an electronic breaker based on the specific protection needed, whether it's overcurrent, overvoltage, or under-voltage protection, to safeguard your electrical devices effectively.
- **Resetting options**: An automatic reset function offers convenience and efficiency after faults. However, if physical intervention is necessary in your use case, a manual reset option would be the better choice.

## **Mistakes to Avoid when Buying Electronic Circuit Breakers**

When purchasing electronic circuit breakers, keep in mind and avoid these common pitfalls that can compromise safety and system performance:

- **Incorrect rating selection**: Failing to match the electronic circuit breaker's rating with the system's power requirements can lead to inadequate protection, potentially causing equipment damage or fire hazards.
- **Overlooking compatibility**: Not considering the breaker's compatibility with existing equipment and infrastructure can result in installation difficulties, operational issues, or even system malfunctions.
- **Ignoring reset options**: Choosing an electronic breaker with a reset function unsuitable for the intended operational needs can lead to inconvenient manual interventions or compromised system efficiency, particularly for automated processes.

## **Industry Applications of Electronic Circuit Breakers**

Electronic circuit breakers are widely applied across various industrial sectors in Australia, providing essential protection and ensuring operational integrity:

- **Manufacturing**: Electronic circuit breakers safeguard complex machinery and production lines from overloads and short circuits, ensuring continuous operation and preventing costly downtime.
- **Mining**: In Australia's mining operations, robust electronic breaker units protect critical equipment in harsh environments, from conveyor belts to ventilation systems, against electrical faults.
- **Data centres**: Digital breakers are crucial in data centres for protecting sensitive servers and networking equipment, ensuring stable power supply and preventing data loss due to electrical anomalies.
- **Renewable energy**: For solar farms and wind turbines across Australia, electronic circuit breaker 24VDC models and higher voltage units protect inverters and battery storage systems, enhancing safety and efficiency.
- **Commercial buildings**: In large commercial buildings, E MCB systems provide granular circuit protection for lighting, HVAC, and power outlets, ensuring occupant safety and electrical system reliability.

## **Your Trusted Supplier and Manufacturer for Electronic Circuit Breakers**

As a leading supplier and distributor of electronic device circuit breakers across Australia, RS Australia is your reliable partner for robust electrical protection solutions. We meticulously source our electric circuit breaker units from esteemed brands and manufacturers, such as [ABB](https://au.rs-online.com/web/b/abb/), [Siemens](https://au.rs-online.com/web/b/siemens/), and [Eaton](https://au.rs-online.com/web/b/eaton/), ensuring exceptional quality and full compliance with industry standards.

Beyond our comprehensive range of ECB circuit breakers, we also offer a wide array of other essential electrical supplies, including [busbars](https://au.rs-online.com/web/c/fuses-circuit-breakers/circuit-breakers/busbars/) and [slotted tag fuses](https://au.rs-online.com/web/c/fuses-circuit-breakers/fuses/tag-fuses/).

Explore our user-friendly online platform to find the products you need and get them shipped with our prompt delivery services. With flexible options available, we can ensure you receive your items when required. For more information on delivery fees and timings, please consult our [delivery information page](https://au.rs-online.com/web/content/support/all-articles/delivery).



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