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ABB FS403 Series Residual Current Circuit Breaker, 16A, 4-Pole, 100 mA, Type C, 7.5 kA 415V ac
The ABB FS403 Series Residual Current Circuit Breaker, 16A, 4-Pole, 100 mA, Type C, 7.5 kA 415V ac offers dependable industrial performance and is suitable for deployment across power distribution, oil and gas, petrochemical, and manufacturing facilities.

ABB FS403 Series Residual Current Circuit Breaker, 16A, 4-Pole, 100 mA, Type C, 7.5 kA 415V ac
The ABB FS403 Series Residual Current Circuit Breaker, 16A, 4-Pole, 100 mA, Type C, 7.5 kA 415V ac offers dependable industrial performance and is suitable for deployment across power distribution, oil and gas, petrochemical, and manufacturing facilities.

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Product Description
Offering a combination of quality construction and reliable performance, the ABB FS403 Series Residual Current Circuit Breaker, 16A, 4-Pole, 100 mA, Type C, 7.5 kA 415V ac meets the needs of industrial procurement teams and engineers.
Featuring a robust build quality, this component is designed to maintain consistent performance under variable load conditions. The engineering behind this product reflects decades of industrial expertise, resulting in a component that balances reliability with ease of use. Its standardized form factor allows for quick replacement and seamless integration within established industrial setups.
Industrial sectors including power generation, oil and gas, marine engineering, and process manufacturing rely on products of this type for operational continuity. The component supports both new installation projects and maintenance/replacement requirements across industrial infrastructure. Its proven reliability makes it a preferred specification choice among engineers, procurement managers, and project developers.
Manufactured to international quality standards, the product undergoes rigorous testing to verify performance under rated conditions. Its rated electrical characteristics ensure compatibility with standard industrial supply voltages and control circuit configurations. The physical design accommodates standard mounting arrangements, simplifying integration into existing infrastructure.
Selecting the right industrial component involves balancing technical specification, availability, and total cost of ownership. This product addresses all three dimensions: it meets the technical requirements of professional industrial applications, is available through Z&F Corporation's industrial supply network, and its durability supports a favorable total cost of ownership over its service life. Engineering teams evaluating this product can draw on its established specification history and recognized brand pedigree to support procurement decisions with confidence. This combination of technical and commercial attributes makes it a practical and reliable choice for industrial projects of all scales.
This component is available through Z&F Corporation as part of a broad portfolio of industrial electrical, automation, and safety products. Its consistent performance record and recognized quality make it a trusted specification for industrial projects requiring reliable component supply. Engineers and procurement managers can rely on this product to deliver consistent results in service over its rated operational lifetime, supported by Z&F Corporation's responsive technical and logistics team.
Frequently Asked Questions
Type AC detects standard sinusoidal AC earth-fault current only. Type A additionally detects pulsating DC fault current, which is required wherever the circuit feeds electronic equipment such as variable speed drives, EV chargers or switched-mode power supplies — most modern installations specify Type A as the minimum.
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