Why Choose the ABB S303P-D4 Miniature Circuit Breaker?
The ABB S303P-D4 is a System pro M compact S300P miniature circuit breaker designed to provide reliable overcurrent protection for AC electrical circuits requiring a 4 A rated current.
Featuring a 3P configuration with no neutral pole, D tripping characteristic and 25 kA rated breaking capacity, the S303P-D4 is suited to circuits where higher starting or inrush currents may occur alongside the need for dependable short-circuit protection.
Designed for DIN-rail mounting, this compact ABB circuit breaker is suitable for professional distribution boards, control panels, industrial automation equipment and other modular electrical installations.
Key Advantages
- Compact 3P miniature circuit breaker with no neutral pole.
- 4 A rated current for low-current circuit protection.
- D tripping characteristic for circuits with higher starting or inrush currents.
- 25 kA rated breaking capacity for robust short-circuit protection.
- Thermal-magnetic overcurrent protection for overload and short-circuit conditions.
- AC supply compatibility for suitable electrical distribution and control circuits.
- DIN-rail mounting for straightforward installation in modular assemblies.
Key Features
- ABB System pro M compact S300P series.
- Model: S303P-D4.
- 3P configuration with no neutral pole.
- 4 A rated current.
- D tripping characteristic.
- 25 kA rated breaking capacity.
- Thermal-magnetic circuit protection.
- AC supply.
- DIN-rail mounting.
- Screw terminal connection.
- Compact modular construction for electrical distribution and control applications.
Reliable Overcurrent Protection
The S303P-D4 combines thermal and magnetic protection to help protect electrical circuits against overload and short-circuit conditions. Its D tripping characteristic is intended for circuits where higher starting or inrush currents can occur, helping provide suitable protection without unnecessary interruption during normal equipment starting.
The 3P configuration provides three-pole circuit protection without a neutral pole, while the 25 kA rated breaking capacity provides a high level of short-circuit interruption capability for suitable installations.
Typical Applications
- Industrial electrical distribution.
- Commercial and professional electrical installations.
- Control circuits and control panels.
- Industrial automation systems.
- Machinery and manufacturing equipment.
- Switchboards and modular distribution assemblies.
- Low-current circuits with higher starting or inrush currents.
- OEM electrical equipment and control systems.
