ABB S202-C10 10A Two Pole C Curve Circuit Breaker

The ABB S202-C10 is a high-performance miniature circuit breaker designed for reliable protection in diverse electrical installations. This two-pole, 10A breaker features a C-curve tripping characteristic, making it ideal for applications with moderate inductive or capacitive loads, such as motors and lighting systems, where inrush currents are expected. Its robust construction and adherence to stringent international standards ensure exceptional safety and operational longevity. Key technical parameters include a rated breaking capacity of 6kA, AC voltage rating of 400V, and a tripping system based on thermal overload and electromagnetic short-circuit principles.

Product Specifications

| Feature                 | Specification                               |

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

| Product Series          | S200                                        |

| Type                    | Miniature Circuit Breaker (MCB)             |

| Number of Poles         | 2                                           |

| Rated Current (In)      | 10 A                                        |

| Tripping Characteristic | C                                           |

| Rated Voltage (Ue)      | 400 V AC                                    |

| Rated Breaking Capacity | 6 kA                                        |

| Frequency               | 50/60 Hz                                    |

| Protection Type         | Thermal overload and electromagnetic trip   |

| Mounting Type           | DIN Rail                                    |

| Terminal Type           | Screw terminal                              |

| IP Protection           | IP20                                        |

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

| Dimensions (H x W x D)  | 88 mm x 35 mm x 69 mm                       |

Core Features & Market Positioning

The ABB S202-C10 distinguishes itself through its reliable C-curve tripping, which offers enhanced protection against nuisance tripping caused by motor start-up or transformer energization, a common challenge in industrial settings. Its 6kA breaking capacity provides sufficient protection for standard residential and commercial applications, positioning it as a cost-effective yet dependable solution. ABB's reputation for quality manufacturing and adherence to global standards like IEC/EN 60898-1 and IEC/EN 60947-2 further solidify its market standing as a trusted component for electrical safety and distribution.

Key Application Scenarios

This circuit breaker is exceptionally well-suited for protecting circuits in commercial buildings, such as offices and retail spaces, managing lighting and socket outlets. In industrial environments, it finds critical use in safeguarding motor control circuits and power distribution panels where inductive loads are prevalent. Its suitability extends to residential complexes, ensuring the safety of individual dwelling units by protecting against overloads and short circuits in the electrical infrastructure.

Practical System Integration Guidance

Integrating the ABB S202-C10 is straightforward due to its standard DIN rail mounting capability, allowing for quick installation in distribution boards and control cabinets. Ensure proper torque is applied to the screw terminals to secure the conductor connections, preventing loose contacts that can lead to overheating. For multi-phase applications requiring individual pole protection, connecting the two poles in series for a single-phase circuit or in parallel (if supported by the system design and regulations) ensures comprehensive circuit isolation during fault conditions. Always verify that the breaker's current and voltage ratings are appropriate for the circuit being protected, adhering to local electrical codes and standards.

Operation and Risk Mitigation

The S202-C10 operates on a dual mechanism: thermal overload protection, which responds to gradual overcurrents by sensing temperature rise, and electromagnetic short-circuit protection, which provides rapid interruption of high fault currents. This ensures comprehensive protection against both sustained overloads and sudden short circuits, minimizing the risk of equipment damage, fire, and electrical shock. Regular visual inspection for any signs of damage or discoloration, along with periodic testing of tripping functions (where applicable and safe), are crucial for maintaining operational integrity and mitigating potential risks.

Scalability & Long-Term Value

As part of ABB's extensive S200 series, the S202-C10 offers excellent compatibility with other breakers and accessories within the same range, facilitating future system expansion or modifications. This backward and forward compatibility ensures that electrical installations can be scaled efficiently without requiring a complete overhaul of existing protection devices. While this specific model is designed for robust on-site protection, it can be integrated into broader smart grid or building management systems through compatible auxiliary contacts or remote signaling units, enhancing monitoring and control capabilities for long-term operational insights and efficiency.

Frequently Asked Questions (FAQs)

What is the primary function of an ABB S202-C10 circuit breaker?

It serves as an automatic safety device. It protects electrical circuits from damage caused by overcurrents or short circuits. It interrupts the flow of electricity when a fault is detected.

This breaker is specifically designed for general-purpose applications. It handles moderate inrush currents commonly found in motors and lighting. The C-curve is key to its application suitability.

Its core purpose is to prevent equipment failure and fire hazards. It ensures the integrity and safety of the electrical installation. It offers reliable, automatic protection.

What does "C-curve" mean for the ABB S202-C10?

A C-curve breaker trips between 5 to 10 times the rated current. This range accommodates moderate inrush currents. It is suitable for inductive loads like motors.

This tripping characteristic prevents nuisance tripping. It allows for temporary high currents during equipment startup. It balances protection with operational continuity.

Compared to B-curve breakers, C-curve offers delayed tripping. This makes it ideal for applications with higher starting currents. It provides better protection for specific equipment types.

Can the ABB S202-C10 be used for DC circuits?

The ABB S202-C10 is primarily designed for AC (Alternating Current) circuits. Its specifications, like the 400V AC rating, confirm this. Using it on DC may not provide adequate protection.

For DC circuits, specific DC-rated circuit breakers are required. These have different arc-quenching capabilities and tripping curves. Using an AC breaker on DC can be dangerous.

Always consult the product manual and local electrical codes. Ensure the breaker's specifications match the circuit's voltage and current type. Safety and proper function depend on correct application.

What is the breaking capacity of the ABB S202-C10?

The ABB S202-C10 has a breaking capacity of 6kA. This is the maximum fault current it can safely interrupt. It is rated at 6000 Amperes.

This breaking capacity is suitable for many residential and commercial applications. It ensures protection against most common short-circuit events. It meets standard safety requirements for general use.

For installations with higher potential fault currents, a higher breaking capacity breaker may be necessary. Always assess the fault current levels of your electrical system. This ensures adequate protection.

How do I install the ABB S202-C10 circuit breaker?

Installation involves snapping the breaker onto a standard 35mm DIN rail. Ensure the rail is securely mounted in a distribution board. Connect the line conductor to the upper terminal and the load conductor to the lower terminal.

Ensure power to the circuit is completely isolated before installation. Use appropriate tools for stripping wires and tightening terminals. Verify correct polarity for AC circuits.

Double-check all connections for tightness. Ensure the breaker is correctly oriented. Refer to installation manuals and local electrical codes for detailed guidance.

What is the rated voltage for this circuit breaker?

The rated voltage for the ABB S202-C10 is 400V AC. This indicates its suitability for standard mains power in many regions. It is designed for use in 230/400V distribution systems.

This voltage rating is crucial for ensuring proper operation and safety. Exceeding the rated voltage can lead to breaker failure or damage. It is essential to match the breaker to the system voltage.

It is important to note that this is an AC rating. This breaker is not intended for use in high-voltage DC systems. Always confirm the circuit voltage before selecting a breaker.

What are the dimensions of the ABB S202-C10?

The S202-C10 measures approximately 88mm in height. Its width is 35mm, corresponding to two standard module units. The depth is about 69mm.

These dimensions adhere to standard electrical panel specifications. They allow for easy integration into existing distribution boards. The compact size facilitates efficient use of space.

The modular design ensures compatibility with most standard enclosures. This makes it a versatile choice for various electrical panel configurations. Always check enclosure dimensions for fit.

How does the ABB S202-C10 protect against overloads and short circuits?

It uses a bimetallic strip for thermal overload protection. Overcurrent heats the strip, causing it to bend and trip the breaker. This responds to gradual overloads.

For short circuits, it employs an electromagnet. A high current surge creates a strong magnetic field. This field rapidly actuates the tripping mechanism.

This dual protection ensures comprehensive safety. It guards against both slow and fast-acting fault conditions. It prevents damage and hazards effectively.

Is the ABB S202-C10 compatible with other ABB products?

Yes, the S202-C10 is part of ABB's S200 series. It is designed for seamless integration with other breakers and accessories in this range. This includes busbars and auxiliary contacts.

Compatibility extends to many standard DIN rail mounting systems. This ensures easy retrofitting or expansion of electrical panels. It offers flexibility in system design.

Always verify specific accessory compatibility through ABB documentation. This ensures optimal performance and adherence to safety standards. It supports system scalability.

Where is the ABB S202-C10 commonly used?

This breaker is widely used in residential electrical installations. It protects circuits for lighting, outlets, and appliances. It is suitable for general household power distribution.

It's also found in commercial buildings for similar applications. Offices, retail spaces, and small businesses rely on its protection. It ensures safety for occupants and equipment.

In light industrial settings, it can protect motor circuits or specific machinery. Its C-curve is beneficial for loads with moderate startup currents. It is a versatile, reliable protection solution.