ABB S202-C6 6A C Curve Miniature Breaker 2P

The ABB S202-C6 6A C Curve Miniature Circuit Breaker (MCB) stands as a cornerstone in modern electrical protection, offering robust safeguarding for diverse industrial and commercial applications. This 2-pole device is engineered for reliable performance, ensuring uninterrupted power delivery while preventing damage from overcurrents and short circuits. Its C-curve tripping characteristic makes it ideal for circuits with moderate inductive loads, such as motors, transformers, and fluorescent lighting, where temporary inrush currents are expected. With a breaking capacity of 6kA, the S202-C6 provides essential safety and operational continuity, solidifying ABB's reputation for high-quality, dependable electrical components.

Product Specifications

| Parameter                 | Specification                               |

| :------------------------ | :------------------------------------------ |

| Manufacturer              | ABB                                         |

| Product Series            | S200                                        |

| Product Type              | Miniature Circuit Breaker (MCB)             |

| Model Number              | S202-C6                                     |

| Number of Poles           | 2                                           |

| Rated Current             | 6A                                          |

| Tripping Characteristic   | C-Curve                                     |

| Breaking Capacity (Icn)   | 6kA                                         |

| Rated Voltage (Ue)        | 230/400V AC                                 |

| Frequency                 | 50/60 Hz                                    |

| Degree of Protection      | IP20                                        |

| Terminal Type             | Screw Terminals                             |

| Mounting Type             | DIN Rail (35mm)                             |

| Ambient Temperature Range | -25°C to +55°C                              |

| Compliance                | IEC/EN 60898-1, IEC/EN 60947-2              |

Core Features & Market Positioning

The ABB S202-C6 distinguishes itself through its robust construction and adherence to stringent international safety standards, including IEC/EN 60898-1 and IEC/EN 60947-2. This commitment to quality ensures a long service life and reliable protection against electrical faults, minimizing downtime and potential equipment damage. Its market positioning is firmly within the professional electrical installation sector, where engineers and contractors value the predictable performance and straightforward integration offered by ABB's S200 series. The C-curve tripping characteristic is particularly advantageous for applications involving inductive loads, providing enhanced protection without nuisance tripping, a common issue with standard B-curve breakers in such scenarios. The compact 2-pole design also facilitates space-saving installations in distribution boards.

Key Application Scenarios

The ABB S202-C6 6A C Curve Miniature Breaker is optimally suited for protecting circuits with moderate inductive loads in commercial and industrial settings. This includes safeguarding individual motor circuits, small pump systems, fans, and compressors where the initial current surge during startup is higher than the normal operating current. It is also an excellent choice for lighting circuits incorporating fluorescent or LED drivers, which can experience transient inrush currents. Furthermore, the 2-pole configuration makes it ideal for single-phase circuits requiring overcurrent protection on both the live and neutral conductors, ensuring comprehensive safety and compliance with electrical codes in panelboards and sub-distribution systems.

Practical System Integration Guidance

Integrating the ABB S202-C6 into existing electrical systems is a streamlined process due to its standard 35mm DIN rail mounting capability and user-friendly screw terminals. Ensure the main power supply is de-energized before installation. Connect the line conductor to terminal L and the neutral conductor to terminal N. The breaker should be installed in a vertical position to ensure proper thermal dissipation and tripping function. For circuits requiring protection on both live and neutral, connect the incoming live to one pole and the incoming neutral to the other. Always verify correct wiring polarity and tighten terminals securely to prevent loose connections, which can lead to overheating and potential failure. A proper grounding system must be in place for the protected equipment.

Operation and Risk Mitigation

The primary function of the ABB S202-C6 is to interrupt electrical circuits when an overcurrent condition, either an overload or a short circuit, is detected. The C-curve tripping characteristic allows for a higher inrush current before tripping, typically 5 to 10 times the rated current, which is crucial for inductive loads. Overloads, caused by excessive current draw over a prolonged period, will eventually cause the thermal element to trip the breaker. Short circuits, characterized by very high currents, will trigger a rapid magnetic trip. To mitigate risks, always ensure the breaker's rated current (6A) and breaking capacity (6kA) are appropriate for the circuit being protected. Never bypass or tamper with the breaker mechanism. Regularly inspect terminals for signs of overheating.

Scalability & Long-Term Value

The ABB S200 series, including the S202-C6, offers significant long-term value through its compatibility with a wide range of ABB's modular DIN-rail devices, facilitating easy system expansion and upgrades. This interoperability allows for seamless integration with auxiliary contacts, surge protection devices, and other control components as electrical system requirements evolve. While the S202-C6 itself is a fixed-rating device, its inclusion in a well-designed distribution system allows for future scalability by reconfiguring circuits or adding larger capacity breakers upstream. ABB's commitment to global standards ensures that this breaker remains a relevant and reliable component in evolving electrical infrastructures, including those moving towards smart grid technologies and increased automation.

Frequently Asked Questions

What is the tripping characteristic of the ABB S202-C6?

The ABB S202-C6 features a C-curve tripping characteristic. This means it is designed to withstand higher inrush currents than B-curve breakers.

It allows for temporary current surges of 5 to 10 times its rated current before tripping. This makes it ideal for inductive loads like motors or transformers.

This characteristic helps prevent nuisance tripping, ensuring operational continuity for equipment with moderate starting currents.

What applications is the ABB S202-C6 suitable for?

This 6A, 2-pole miniature breaker is excellent for protecting circuits with inductive loads.

Applications include small motors, pumps, fans, compressors, and lighting systems with transformers.

Its C-curve makes it a reliable choice for preventing unnecessary shutdowns due to startup surges.

What is the breaking capacity of the ABB S202-C6?

The ABB S202-C6 has a breaking capacity of 6kA. This refers to the maximum fault current it can safely interrupt.

A 6kA rating is sufficient for most residential and light commercial applications.

It ensures that the breaker can safely disconnect power during a short circuit without sustaining damage.

Can the ABB S202-C6 be used for DC circuits?

The ABB S202-C6 is primarily designed for AC circuits. Using it on DC circuits is not recommended.

DC circuits have different arc-quenching requirements compared to AC circuits.

Specialized DC circuit breakers are necessary for reliable protection in DC applications.

How do I install the ABB S202-C6?

Ensure the power supply is completely shut off before installation.

Mount the breaker onto a standard 35mm DIN rail in the electrical panel.

Connect the line conductor to terminal L and the neutral conductor to terminal N; tighten screws securely.

What are the dimensions of the ABB S202-C6?

The standard width of the ABB S202-C6 is two modular units (approximately 36mm).

The height and depth conform to standard DIN rail component specifications for panel integration.

Consult the official ABB datasheet for precise physical dimensions if needed for tight spaces.

What is the difference between a C-curve and a B-curve breaker?

A C-curve breaker trips between 5-10 times its rated current, suitable for inductive loads.

A B-curve breaker trips between 3-5 times its rated current, ideal for purely resistive loads.

The S202-C6's C-curve provides better protection against nuisance tripping for motors and lighting.

What is the rated voltage of the ABB S202-C6?

The rated voltage (Ue) for the ABB S202-C6 is typically 230/400V AC.

This makes it suitable for standard single-phase and three-phase power systems.

Always confirm the voltage rating matches your installation requirements.

How do I reset the ABB S202-C6 after it trips?

To reset the breaker, first identify and rectify the cause of the fault (overload or short circuit).

Then, simply flip the toggle switch back to the ON position.

If it trips again immediately, there is still an issue with the circuit that needs investigation.

What is the degree of protection for the ABB S202-C6?

The ABB S202-C6 has a degree of protection of IP20.

This means it is protected against solid objects larger than 12.5mm.

It is not protected against water ingress and should be installed in a suitable enclosure.