ABB 2CDS251103R0084 S201-C8NA Miniature Circuit Breaker

Product Overview

ABB 2CDS251103R0084 is an S201-C8NA miniature circuit breaker developed for low voltage electrical distribution and protection applications. It belongs to the ABB System pro M compact product family, which is widely recognized for modular electrical protection components designed for industrial, commercial, and building installations.

The device combines a compact modular structure with dependable circuit protection technology. ABB 2CDS251103R0084 provides protection against overload current and short circuit faults, helping maintain electrical system safety and improve the reliability of connected equipment. Its 1P+N configuration allows both phase and neutral disconnection, making it suitable for various single-phase electrical distribution applications.

According to ABB product documentation, the S201-C8NA model features C characteristic protection, an 8 A rated current, and a 6 kA short circuit breaking capacity, making it suitable for applications requiring reliable protection and efficient fault interruption. :contentReference[oaicite:1]{index=1}

Product Features

ABB 2CDS251103R0084 integrates advanced protection mechanisms within a compact DIN rail mounting design. The miniature circuit breaker uses both thermal and electromagnetic release technologies to provide effective protection under different fault conditions.

• Model: S201-C8NA
• Product type: Miniature Circuit Breaker
• Rated current: 8 A
• Protection characteristic: C curve
• Configuration: 1P+N
• Breaking capacity: 6 kA
• Product family: ABB System pro M compact
• Suitable for low voltage electrical distribution systems

The C characteristic design allows the circuit breaker to handle normal operating current while responding quickly during overload and short circuit conditions. This makes ABB 2CDS251103R0084 suitable for circuits containing equipment with moderate starting currents, including control systems, lighting circuits, and general electrical loads.

Technical Design

The ABB 2CDS251103R0084 miniature circuit breaker is designed with ABB’s modular protection concept, providing reliable mechanical operation and convenient installation. The compact housing allows efficient arrangement inside electrical distribution boards while maintaining clear identification and accessibility.

The device adopts a standardized DIN rail mounting structure, enabling integration into modern electrical cabinets and distribution panels. The modular dimensions support flexible system design and allow electrical engineers to combine multiple ABB protection and control components within the same installation environment.

The internal thermal release mechanism protects circuits against continuous overload conditions, while the electromagnetic release provides rapid interruption during short circuit events. This dual protection method improves system safety and reduces the possibility of electrical equipment damage.

Application Areas

ABB 2CDS251103R0084 is suitable for a wide range of low voltage electrical applications. It can be installed in industrial control cabinets, commercial distribution boards, automation systems, and building electrical networks where dependable circuit protection is required.

In industrial automation environments, the device can protect auxiliary circuits, control power supplies, and electrical branches connected to automation equipment. Its compact size makes it particularly suitable for control panels where installation space must be optimized.

For commercial and building applications, ABB 2CDS251103R0084 can be used in lighting circuits, small power distribution systems, and auxiliary electrical networks. The 1P+N configuration provides convenient isolation of both phase and neutral conductors, improving maintenance safety.

Advantages of ABB System pro M compact Series

The System pro M compact series represents ABB’s modular low voltage protection platform designed for efficient electrical installation solutions. Products within this series are developed with consistent dimensions, accessory compatibility, and reliable operating performance.

ABB 2CDS251103R0084 benefits from this modular approach by allowing easy integration with other ABB components, including auxiliary accessories and additional protection devices. This flexibility helps engineers create customized electrical systems according to different project requirements.

The compact structure reduces cabinet space requirements while maintaining professional installation standards. This is especially valuable in industrial automation projects where electrical panels require high component density and organized layouts.

Protection Performance

Reliable circuit protection is essential for maintaining continuous operation of electrical systems. ABB 2CDS251103R0084 provides effective protection by automatically disconnecting circuits when abnormal current conditions exceed safe operating limits.

The combination of thermal overload protection and electromagnetic short circuit protection allows the device to respond accurately to different electrical fault situations. This helps protect wiring systems, electrical components, and connected equipment from potential damage.

With ABB engineering standards and System pro M compact design principles, the circuit breaker provides stable performance for various low voltage applications requiring safety, reliability, and efficient operation.

Installation and Maintenance

The modular construction of ABB 2CDS251103R0084 simplifies installation procedures for electrical professionals. The DIN rail mounting method allows quick positioning within distribution panels, while the clear front identification supports easier system management.

Its standardized design also supports convenient replacement and system expansion. When additional protection functions are required, compatible ABB modular components can be combined to create a complete electrical protection solution.

Conclusion

ABB 2CDS251103R0084 S201-C8NA is a reliable miniature circuit breaker designed for modern low voltage electrical protection applications. With its 1P+N configuration, C characteristic curve, 8A rated current, and System pro M compact platform advantages, it provides efficient protection for industrial, commercial, and building electrical systems.

Combining compact installation design, dependable protection technology, and ABB’s professional engineering standards, ABB 2CDS251103R0084 is an effective solution for electrical distribution systems that require stable operation, safety, and long-term reliability.