ABB S202-B6 2P Circuit Breaker 6A System pro M

The ABB S202-B6 2P Circuit Breaker, a cornerstone of the System pro M compact series, offers unparalleled protection and reliability for electrical installations. This 6A, double-pole miniature circuit breaker (MCB) is engineered with a B-type tripping characteristic, making it ideal for safeguarding circuits against overcurrents and short circuits, particularly in residential and commercial applications where inductive loads are prevalent. Its robust design ensures swift disconnection, minimizing damage to equipment and preventing potential hazards. Key technical specifications include a rated voltage of 400V AC, a rated breaking capacity of 6kA, and compliance with IEC/EN 60898-1 and IEC/EN 60947-2 standards. The S202-B6's inherent modularity within the System pro M platform facilitates seamless integration and expansion, underscoring ABB's commitment to advanced electrical protection solutions.

Product Specifications

| Specification                | Value                 |

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

| Product Name                 | S202-B6               |

| Field                         | 2P                    |

| Rated Current                | 6A                    |

| Tripping Characteristic      | B                     |

| Rated Voltage (Ue)           | 400V AC               |

| Rated Frequency              | 50/60 Hz              |

| Rated Breaking Capacity (Icn)| 6kA                   |

| Protection Class             | IP20                  |

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

| Connection Type              | Screw Terminals       |

| Mounting Type                | DIN Rail              |

Core Features & Market Positioning

The ABB S202-B6 distinguishes itself through its precise B-type tripping curve, offering sensitive protection against overload and short-circuit currents, particularly crucial for sensitive electronic equipment and lighting circuits. Its designation within the System pro M compact series signifies its compatibility with a wide array of ABB modular devices, enabling sophisticated and scalable electrical distribution systems. This interoperability positions the S202-B6 not just as a standalone protective device but as an integral component in modern, intelligent electrical infrastructures. Industry professionals value its robust construction and ABB's reputation for quality and longevity, making it a preferred choice for applications demanding high reliability and performance.

Key Application Scenarios

This 6A circuit breaker is extensively deployed in residential settings to protect individual circuits for lighting, power outlets, and small appliances where rapid response to overcurrents is paramount. In commercial environments, it serves critical roles in sub-distribution boards for sensitive electronics, control panels, and communication equipment that require precise overcurrent protection. The B-type tripping characteristic is especially beneficial for circuits with low inrush currents, ensuring operational continuity without nuisance tripping, while still providing essential safety against fault conditions. Its dual-pole design makes it suitable for single-phase circuits requiring disconnection of both live and neutral conductors simultaneously.

Practical System Integration Guidance

Integrating the ABB S202-B6 into an electrical system is straightforward due to its DIN rail mounting capability, a standard in modern electrical enclosures. For installation, ensure the main power supply is de-energized. Connect the line conductor to terminal 1 and the neutral conductor to terminal 3 on the left-hand side of the breaker; terminal 2 and 4 are typically used for the outgoing load conductors. Maintain appropriate torque specifications during terminal connections to ensure a secure and reliable electrical contact, preventing overheating. The System pro M series also offers busbar systems and auxiliary contacts that can be easily attached, simplifying wiring and enabling advanced monitoring functions.

Operation and Risk Mitigation

The primary function of the ABB S202-B6 is to automatically interrupt electrical current in the event of an overload or short circuit, thereby preventing damage to connected equipment and mitigating fire hazards. Its B-type tripping curve means it will trip between 3 to 5 times the rated current, offering faster response for smaller overloads compared to C or D type breakers. Users should be aware that this breaker is designed for use in systems with a maximum short-circuit current of 6kA. Always ensure that the upstream protective devices are coordinated correctly to ensure selective protection and to minimize the area of isolation in case of a fault. Regular visual inspections for any signs of damage or wear are recommended.

Scalability & Long-Term Value

The S202-B6, as part of ABB's System pro M compact platform, offers significant scalability. Its modular design allows for easy expansion or modification of electrical distribution boards. Compatibility with a wide range of ABB ancillary devices, such as auxiliary contacts, signal contacts, and remote switching units, allows for the integration of advanced monitoring, control, and alarm functions. This ensures that electrical installations can be adapted to evolving needs, including the integration with smart home systems or industrial IoT (IIoT) platforms for enhanced data collection and predictive maintenance, thereby maximizing long-term value and operational efficiency.

FAQs

What is the tripping characteristic of the ABB S202-B6?

The ABB S202-B6 features a B-type tripping characteristic. This means it is designed to trip when the current reaches 3 to 5 times its rated current of 6A.

This characteristic is suitable for circuits with low inrush currents, such as lighting and socket outlets. It provides sensitive protection against overloads and short circuits.

This type of tripping curve helps prevent nuisance tripping from temporary surges while still offering essential protection against hazardous fault conditions.

What applications is the ABB S202-B6 6A circuit breaker best suited for?

This 6A, two-pole circuit breaker is ideal for residential and light commercial applications. It is commonly used for protecting lighting circuits and socket outlets.

Its B-type characteristic makes it suitable for sensitive electronic equipment that requires precise overcurrent protection. It ensures operational continuity for devices with low inrush currents.

The dual-pole design allows for simultaneous disconnection of live and neutral conductors, enhancing safety in single-phase installations.

What are the main advantages of using the ABB S202-B6?

A key advantage is its reliable protection against overcurrents and short circuits, safeguarding equipment and preventing hazards. It boasts a robust construction backed by ABB's reputation for quality.

The breaker is part of the System pro M compact series, offering excellent modularity and compatibility with other ABB devices. This facilitates easy system expansion and integration.

Its precise B-type tripping characteristic provides sensitive protection, minimizing risk of damage to connected loads and ensuring operational reliability.

Can the ABB S202-B6 be used in industrial settings?

While primarily designed for residential and commercial use, it can be employed in specific light industrial applications. This includes control panels or circuits with low inrush currents.

For higher power demands or inductive loads common in heavy industry, circuit breakers with C or D type tripping characteristics are generally recommended. Always verify application requirements.

It is crucial to ensure the circuit breaker's 6kA breaking capacity meets or exceeds the prospective short-circuit current at the point of installation.

What is the rated voltage and breaking capacity of the ABB S202-B6?

The ABB S202-B6 has a rated voltage (Ue) of 400V AC. This makes it suitable for most standard single-phase and two-phase electrical installations.

Its rated breaking capacity (Icn) is 6kA. This is the maximum fault current the breaker can safely interrupt without damage.

It is essential that the installation's potential short-circuit current does not exceed this 6kA rating to ensure the breaker functions correctly under fault conditions.

How do I install the ABB S202-B6 circuit breaker?

Installation requires mounting the breaker onto a standard 35mm DIN rail within an electrical enclosure. Ensure the main power supply is switched off before proceeding.

Connect the incoming line conductor to terminal 1 and the incoming neutral conductor to terminal 3 on the left side of the breaker. The outgoing load conductors connect to terminals 2 (line) and 4 (neutral) respectively.

Use appropriate tools and torque settings for terminal connections to ensure secure electrical contact and prevent overheating. Always follow local electrical codes and regulations.

What does "2P" mean in ABB S202-B6 2P?

"2P" signifies that the circuit breaker has two poles. This means it is designed to interrupt both the live (phase) and neutral conductors of an electrical circuit simultaneously.

This double-pole configuration is important for ensuring complete isolation of a single-phase circuit during fault conditions or for maintenance. It enhances safety compared to single-pole breakers.

It is typically used in applications where disconnection of both conductors is required by safety regulations or for specific types of loads.

What standards does the ABB S202-B6 comply with?

The ABB S202-B6 complies with key international and European standards for circuit protection devices. These include IEC/EN 60898-1 and IEC/EN 60947-2.

IEC/EN 60898-1 specifically relates to circuit breakers for household and similar installations, ensuring its suitability for general use. IEC/EN 60947-2 covers low-voltage switchgear and controlgear.

Compliance with these standards guarantees the product has undergone rigorous testing for safety, performance, and reliability.

Can I connect auxiliary contacts to the ABB S202-B6?

Yes, the ABB S202-B6 is designed to be compatible with auxiliary and signal contacts from the System pro M compact series. These accessories can be easily mounted on the side of the breaker.

Auxiliary contacts can provide status information (e.g., ON/OFF) to a control system or PLC. Signal contacts are often used for remote fault indication.

Integrating these accessories enhances the monitoring and control capabilities of the electrical installation, enabling smart functions.

What is the difference between B-type and other tripping characteristics like C-type?

A B-type breaker, like the S202-B6, trips between 3-5 times its rated current. This makes it sensitive and ideal for resistive loads and sensitive electronics.

A C-type breaker trips between 5-10 times its rated current. This characteristic is suitable for circuits with moderate inrush currents, such as fluorescent lighting or small motors.

D-type breakers trip between 10-20 times their rated current, offering higher surge tolerance for circuits with high inrush currents like large motors or transformers.