Why Choose the ABB S304P-B20 Miniature Circuit Breaker?
The ABB S304P-B20 is a reliable miniature circuit breaker (MCB) designed for effective overcurrent and short-circuit protection in industrial, commercial and electrical distribution systems. As part of the advanced ABB System pro M compact S300P series, it provides dependable circuit protection with a compact modular design for professional electrical installations.
This circuit breaker features a B tripping characteristic, providing fast protection for standard resistive and general-purpose electrical loads. Its four-pole configuration without switched neutral makes it suitable for three-phase AC applications where reliable fault protection is required.
With a rated current of 20 A and a rated breaking capacity of 25 kA, the ABB S304P-B20 delivers high-performance protection for electrical systems while allowing straightforward installation on standard DIN rails inside distribution boards and control panels.
Key Advantages
- High-performance miniature circuit breaker for industrial and commercial electrical protection.
- 20 A rated current suitable for general-purpose AC circuits.
- 25 kA breaking capacity for reliable short-circuit interruption.
- B tripping characteristic for standard electrical load protection.
- 4-pole design without neutral switching for three-phase circuit applications.
- Compatible with ABB System pro M compact modular protection systems.
Key Features
- ABB System pro M compact S300P series.
- 20 A rated current.
- B tripping characteristic.
- 25 kA rated breaking capacity.
- 4-pole configuration (no neutral).
- AC circuit protection.
- DIN-rail mounting design.
- Compact modular construction for electrical distribution assemblies.
Reliable Circuit Protection for Industrial Electrical Systems
Miniature circuit breakers such as the ABB S304P-B20 protect electrical installations by automatically disconnecting circuits during overload and short-circuit conditions. This improves system safety while helping protect connected equipment and electrical infrastructure.
The ABB System pro M compact S300P series is designed for modern electrical distribution applications where compact dimensions, high breaking capacity and dependable protection performance are required. Its modular DIN-rail format enables efficient integration into control panels and distribution boards.
Typical Applications
- Industrial control panels and electrical cabinets.
- Three-phase machinery and automation equipment.
- Commercial and industrial distribution boards.
- General-purpose electrical circuits.
- OEM machine-building and automation systems.
- Electrical installations requiring reliable fault protection.
