ABB SH202-10C Miniature Circuit Breaker

Product Overview

ABB SH202-10C is a miniature circuit breaker designed for reliable low voltage electrical protection applications. It belongs to the ABB SH200 series, a product family developed for protecting electrical circuits against overload currents and short circuit faults. With a two pole configuration, 10A rated current, and C characteristic trip curve, ABB SH202-10C provides dependable circuit protection for a wide range of electrical distribution environments.

The ABB SH202-10C combines compact construction, reliable switching performance, and flexible installation characteristics. The two pole design allows simultaneous protection and isolation of two conductors, making it suitable for electrical systems where coordinated disconnection is required. The product is commonly applied in distribution panels, control cabinets, building electrical systems, and low voltage power installations.

As a member of the ABB SH200 series, ABB SH202-10C is developed according to ABB’s electrical protection technology standards. The SH200 series includes different current ratings, trip characteristics, and pole configurations to meet various application requirements. ABB SH202-10C represents the two pole C characteristic configuration with a 10 ampere rated current, providing balanced protection performance for general electrical loads. :contentReference[oaicite:2]{index=2}

Product Features

ABB SH202-10C integrates thermal and electromagnetic protection functions to improve electrical system safety and operational reliability. The device is designed to detect abnormal current conditions and disconnect affected circuits when necessary.

• Two pole miniature circuit breaker structure
• 10A rated current for low voltage electrical applications
• C characteristic trip curve for general electrical loads
• Thermal protection against overload conditions
• Electromagnetic protection against short circuit faults
• Compact modular design for distribution boards
• DIN rail mounting compatibility
• Clear switching position indication
• Reliable mechanical switching operation
• Suitable for residential, commercial, and industrial applications

Technical Specifications

The ABB SH202-10C technical configuration corresponds to the SH200 series miniature circuit breaker range, including two pole construction, C characteristic operation, and 10A rated current. The SH200 family supports different configurations including one pole, two pole, three pole, and four pole versions to provide flexible solutions for different electrical systems. :contentReference[oaicite:3]{index=3}

Protection Function and Operating Principle

The primary function of ABB SH202-10C is to protect electrical circuits from damage caused by abnormal current conditions. Electrical installations may experience overload situations caused by excessive continuous current or short circuit faults caused by sudden high current events. The circuit breaker is designed to respond to these conditions and interrupt the circuit when required.

The thermal protection mechanism inside ABB SH202-10C provides delayed protection during overload conditions. When the current exceeds the rated value for an extended period, the thermal element gradually activates the tripping mechanism. This helps prevent overheating of electrical cables and connected equipment.

The electromagnetic protection mechanism provides rapid response during short circuit events. When a high fault current occurs, the magnetic release operates quickly to disconnect the circuit and reduce potential damage to electrical components.

The C characteristic trip curve allows ABB SH202-10C to support circuits where temporary current increases may occur during equipment startup. This characteristic provides a suitable balance between avoiding unnecessary interruption and maintaining effective fault protection.

Design Advantages

ABB SH202-10C features a compact modular structure that supports efficient installation in electrical distribution panels. The standardized dimensions of the SH200 series allow multiple protection devices to be arranged together, helping optimize available installation space.

The DIN rail mounting design enables convenient installation in modern electrical enclosures. Electrical engineers can integrate ABB SH202-10C into modular distribution systems while maintaining organized layouts and simplified maintenance procedures.

The product includes visible switching status indication, allowing operators to quickly identify the operating condition of the circuit breaker. This improves convenience during electrical inspections and system maintenance activities.

Application Areas

ABB SH202-10C is suitable for many low voltage electrical protection applications where reliable two pole circuit protection is required. Its compact design and stable protection performance allow it to be used in various electrical environments.

• Residential electrical distribution systems
• Commercial building power distribution
• Industrial control panels
• Automation system auxiliary circuits
• Lighting and power protection applications
• Low voltage electrical cabinets
• Equipment control circuits

The two pole configuration of ABB SH202-10C provides additional flexibility compared with single pole circuit breakers, especially in applications requiring simultaneous isolation of multiple conductors.

ABB SH200 Series Overview

The ABB SH200 series is a range of miniature circuit breakers designed for low voltage electrical protection. The product family includes different trip characteristics, rated currents, and pole configurations to support various installation requirements.

ABB SH202-10C is part of the C characteristic SH200 series range. It combines ABB’s circuit protection technology with a practical modular design, providing reliable performance for electrical distribution systems.

The SH200 series is designed to meet modern electrical installation needs by offering compact dimensions, convenient mounting methods, and dependable protection functions. These characteristics make the series suitable for a wide range of applications.

Installation and Maintenance

Proper installation is important to ensure reliable operation of ABB SH202-10C. The circuit breaker should be installed according to applicable electrical standards and operated within the specified technical conditions.

Regular inspection of electrical connections and installation conditions helps maintain long-term system reliability. The modular design of ABB SH202-10C allows convenient access during maintenance and system upgrades.

Conclusion

ABB SH202-10C miniature circuit breaker is a reliable low voltage protection device designed for electrical distribution systems requiring two pole protection. With a 10A rated current, C characteristic trip curve, compact modular structure, and DIN rail mounting capability, it provides effective protection against overload and short circuit conditions.

As part of the ABB SH200 series, ABB SH202-10C delivers reliable electrical performance, flexible installation advantages, and practical application possibilities. Its combination of protection capability and compact design makes it suitable for residential, commercial, industrial, and automation-related electrical systems.