ABB SH800 Series Miniature Circuit Breakers

# **ABB SH800 Series Miniature Circuit Breakers – Reliable Protection with Superior Performance**
In modern electrical systems, **miniature circuit breakers (MCBs)** play a vital role in ensuring circuit safety. They must provide precise overload and short-circuit protection while maintaining high reliability within compact spaces. To meet the increasing demands for safety, flexibility, and intelligence in industrial, commercial, and residential distribution systems, **ABB has introduced the SH800 Series MCBs**, a new generation of circuit protection devices that deliver superior performance, reliability, and ease of use.
## **1. Product Overview**
The **ABB SH800 Series Miniature Circuit Breakers** belong to ABB’s high-end low-voltage protection family. Designed in full compliance with **IEC/EN 60898-1 and IEC/EN 60947-2** standards, these breakers cover a rated current range from **0.5A to 125A** and a rated voltage up to **415V AC**.
They are specifically developed to provide **overload and short-circuit protection** in low-voltage electrical networks and are widely used in **industrial control panels, building distribution systems, data centers, photovoltaic installations, and public infrastructure**.
Compared with traditional MCBs, the SH800 Series achieves significant improvements in **performance, safety, and design compactness**, while maintaining ABB’s hallmark quality and reliability.
## **2. Outstanding Technical Features**
### **1) High Breaking Capacity and Fast Protection**
The SH800 Series adopts an advanced **dual-contact structure** and **high-efficiency arc-quenching chamber**, offering a breaking capacity of **10kA to 15kA** (according to IEC 60947-2).
This ensures that in the event of a short circuit, the breaker can immediately interrupt the fault current, preventing equipment damage and fire hazards.
### **2) Precise Tripping Characteristics**
Available in **B, C, and D tripping curves**, the SH800 Series meets the needs of various load conditions:
* **B curve:** ideal for lighting and electronic circuits;
* **C curve:** suited for general industrial and distribution loads;
* **D curve:** suitable for motors and high inrush current applications.
This flexibility enables accurate protection and minimizes nuisance tripping across a wide range of applications.
### **3) Long Mechanical and Electrical Life**
With high-strength silver alloy contacts and a robust thermoplastic housing, the SH800 offers up to **20,000 mechanical operations** and **10,000 electrical operations**, significantly extending product lifetime and reducing maintenance costs.
### **4) Low Temperature Rise and Power Loss**
Optimized internal conductor paths and enhanced heat dissipation design allow the SH800 to maintain **stable operation under high load**, with minimal power loss and safe surface temperatures.
## **3. Compact Design and Installation Convenience**
The SH800 Series embodies ABB’s commitment to user-friendly design and engineering excellence:
* **Compact modular width:** only 18 mm per pole, saving valuable panel space;
* **Removable terminals:** simplify wiring and maintenance;
* **Standard 35mm DIN rail mounting:** enables quick installation;
* **Clear ON/OFF window indicator:** ensures easy visual status recognition;
* **Locking and sealing options:** prevent unauthorized operation and enhance safety.
These design advantages make SH800 ideal for professional installation in **industrial control panels, commercial switchboards, and modular distribution systems**.
## **4. Quality, Safety, and Environmental Responsibility**
As a global leader in electrical engineering, ABB prioritizes **quality and sustainability** in every product.
The SH800 Series uses **halogen-free, flame-retardant, and recyclable materials**, fully compliant with **RoHS and REACH environmental standards**.
Each unit undergoes comprehensive testing — including **temperature rise, short-circuit endurance, dielectric strength, and life-cycle validation** — ensuring consistent performance even under harsh temperature, humidity, or vibration conditions.
## **5. Broad Application Range**
Thanks to its excellent performance and flexible configuration, the SH800 Series is suitable for a wide range of applications:
1. **Industrial Automation:** Motor control panels, process control systems, and factory distribution.
2. **Building Distribution:** Commercial and residential buildings, hotels, and offices.
3. **Renewable Energy:** Photovoltaic (PV) installations, battery energy storage systems, and DC branches.
4. **Data Centers and Communication Systems:** Reliable protection for precision power distribution circuits.
5. **Infrastructure:** Railways, airports, subways, and utility power networks.
In each of these scenarios, the SH800 ensures **consistent, safe, and efficient circuit protection** under all conditions.
## **6. Smart Expansion and Future-Oriented Design**
The SH800 Series supports multiple **optional auxiliary modules**, allowing easy system integration and intelligent monitoring:
* **Auxiliary and alarm contacts:** provide real-time status feedback;
* **Residual current modules:** enable combined overload, short-circuit, and leakage protection;
* **Remote control accessories:** support smart grid and IoT-based distribution systems.
This flexibility ensures that SH800 can easily adapt to the growing trend of **digitalized, intelligent energy management systems**, making it a future-ready protection solution.
## **7. Conclusion**
As a key member of ABB’s MCB family, the **SH800 Series Miniature Circuit Breakers** deliver **high breaking capacity, mechanical endurance, smart modular design, and eco-friendly materials**.
They represent ABB’s deep expertise in circuit protection and commitment to **safe, efficient, and sustainable power distribution**.
Whether used in **industrial control**, **commercial buildings**, or **smart energy systems**, SH800 offers reliable protection and long-lasting performance — ensuring the safety and stability of every electrical network.
### 🔹 **Choose ABB SH800 — Choose Safety, Reliability, and Efficiency.**
If you are looking for **premium-quality miniature circuit breakers** that combine **innovation, durability, and international certification**, contact us today to get a **customized ABB SH800 solution** for your project.
📩 **Send an inquiry now** — our professional team will help you find the right protection device for your application.
If you need to purchase related products, feel free to contact us!