Why Choose the ABB S304P-D40 Miniature Circuit Breaker?
The ABB S304P-D40 is a compact and high-performance miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial and electrical distribution systems. As part of the ABB System pro M compact S300P series, it combines high breaking capacity with practical DIN-rail installation for professional low-voltage applications.
This circuit breaker features a D tripping characteristic, providing protection for circuits with high inrush currents such as motors, transformers and industrial equipment. The 4-pole configuration provides four protected poles without a neutral pole, making the device suitable for multi-pole AC circuit protection where a switched neutral is not required.
With a rated current of 40 A, a 25 kA rated breaking capacity and an AC supply, the S304P-D40 is suited to industrial machinery, automation systems and electrical distribution applications where dependable circuit protection and compact panel integration are required.
Key Advantages
- Compact miniature circuit breaker designed for industrial and electrical distribution applications.
- 40 A rated current for reliable circuit protection.
- D tripping characteristic for circuits with high starting and inrush currents.
- 25 kA rated breaking capacity for high-level short-circuit protection.
- 4P configuration without neutral for multi-pole AC circuit protection.
- DIN-rail mounting for straightforward installation in distribution boards and control panels.
- Part of the ABB System pro M compact S300P range for professional circuit protection.
Key Features
- ABB System pro M compact S300P series.
- 40 A rated current.
- D tripping characteristic.
- 4-pole configuration.
- No neutral pole.
- 25 kA rated breaking capacity.
- AC supply.
- DIN-rail mounting for efficient panel installation.
- Compact modular design for electrical distribution equipment.
- Reliable overload and short-circuit protection.
Reliable Circuit Protection for Industrial Installations
Miniature circuit breakers such as the ABB S304P-D40 protect electrical circuits by automatically disconnecting the supply when an overload or short circuit reaches a level that could otherwise damage conductors and connected equipment. The D tripping characteristic is designed for applications where electrical loads produce significant starting currents.
The S300P series is designed for demanding industrial and electrical installations, combining high breaking performance with a compact modular format. The S304P-D40's four-pole arrangement provides flexible multi-pole circuit protection where a neutral switching pole is not required.
Typical Applications
- Industrial electrical distribution systems.
- Motor and transformer protection circuits.
- Automation and control panels.
- Industrial machinery and production equipment.
- Electrical switchboards and distribution boards.
- Commercial and industrial building installations.
- Low-voltage AC circuit protection applications.
