Title: “ABB RCCB F202 AC-40/0.03: Enhancing Electrical Safety with Precision”


In the world of electrical safety, precision and reliability are of paramount importance. One key component that plays a critical role in ensuring safety is the Residual Current Circuit Breaker (RCCB). ABB, a global leader in power and automation technologies, offers the ABB RCCB F202 AC-40/0.03 as part of its F200 series. This RCCB is designed to provide comprehensive protection against ground fault currents, making it an essential component in electrical installations. In this blog post, we’ll delve into the features and specifications of the ABB RCCB F202 AC-40/0.03 and understand how it contributes to safer electrical systems.

A Shield Against Ground Faults

The ABB RCCB F202 AC-40/0.03 is an AC type RCCB, tailored to detect and mitigate ground fault currents effectively. Ground faults can pose a significant risk, potentially leading to electrical shocks and fires. With a rated residual current of 30 mA, this RCCB is finely tuned to detect even minor imbalances in the electrical current, rapidly interrupting the circuit to prevent harm. It’s an ideal choice for applications where human safety is a top priority.

Key Specifications

Let’s take a closer look at the essential specifications of the ABB RCCB F202 AC-40/0.03:

  1. Rated Voltage (Ur): 230 V
  2. Rated Operational Voltage: 230 V
  3. Rated Insulation Voltage (Ui): 500 V
  4. Rated Impulse Withstand Voltage (Uimp): 4 kV
  5. Rated Current (In): 40 A
  6. Rated Conditional Short-Circuit Current (Inc): 10 kA
  7. Rated Service Short-Circuit Breaking Capacity (Ics): 1 kA
  8. Maximum Surge Current: 0.25 kA
  • Rated Voltage (Ur): At 230 V, the RCCB is well-suited for residential and commercial applications, providing protection in a variety of settings.
  • Insulation and Impulse Withstand Voltage: With a rated insulation voltage of 500 V and an impulse withstand voltage of 4 kV, this RCCB offers robust protection even in challenging electrical environments.
  • Rated Current (In): The 40 A rated current capacity ensures that it can handle the typical load of many electrical circuits, making it versatile for a range of applications.
  • Short-Circuit Protection: The RCCB is designed to handle rated conditional short-circuit currents of up to 10 kA and has a rated service short-circuit breaking capacity of 1 kA, ensuring it can safely interrupt faults in the electrical system.
  • Surge Protection: It can manage maximum surge currents of 0.25 kA, making it a reliable defense against transient electrical surges and spikes.


The ABB RCCB F202 AC-40/0.03 is a testament to ABB’s commitment to safety and innovation in the electrical industry. Its precise fault detection capabilities, high short-circuit current handling capacity, and excellent surge protection make it a valuable asset in any electrical distribution system. Whether in homes, businesses, or industrial settings, this RCCB contributes significantly to protecting lives and property by preventing electrical accidents and hazards.

In a world where electrical safety is non-negotiable, the ABB RCCB F202 AC-40/0.03 stands as a guardian, ensuring that electrical systems operate with the utmost precision and reliability. Its ability to detect and respond to ground fault currents sets a new standard for safety in the electrical industry.