Why Choose the ABB S301P-D4 Miniature Circuit Breaker?
The ABB S301P-D4 is a compact and reliable miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial and commercial electrical installations. As part of the ABB System pro M compact S300P series, it combines a D tripping characteristic with a high 25 kA rated breaking capacity for demanding circuit protection applications.
The S301P-D4 provides thermal-magnetic overcurrent protection and is designed for electrical distribution, control panels and industrial equipment where dependable circuit protection is required. Its single-pole configuration protects one live conductor without a neutral pole, while the compact modular format supports straightforward DIN-rail installation.
With a 4 A rated current, D tripping characteristic and 25 kA rated breaking capacity, the S301P-D4 is suitable for selected circuits where higher starting or inrush currents may occur. Its DIN-rail mounting and robust terminal arrangement make it practical for professional electrical assemblies.
Key Advantages
- Compact single-pole miniature circuit breaker for electrical protection.
- 4 A rated current for low-current circuit protection applications.
- D tripping characteristic suitable for circuits with higher starting or inrush currents.
- 25 kA rated breaking capacity for dependable short-circuit protection.
- DIN-rail mounting for convenient installation in distribution and control equipment.
- Designed to protect electrical circuits against overloads and short circuits.
Key Features
- ABB System pro M compact S300P series.
- S301P-D4 single-pole configuration.
- 4 A rated current.
- D tripping characteristic.
- 25 kA rated breaking capacity.
- Single-pole design with no neutral pole.
- Thermal-magnetic overcurrent protection.
- DIN-rail mounting design.
- Screw terminal connections.
- Suitable for AC supply applications.
- Compact modular construction for electrical distribution equipment.
Reliable Overcurrent Protection for Electrical Circuits
The ABB S301P-D4 combines thermal and magnetic protection to disconnect a circuit when excessive current conditions occur. The thermal mechanism responds to sustained overload conditions, while the magnetic protection provides rapid interruption during short-circuit events.
The D characteristic is intended for applications where circuits can experience comparatively high transient or starting currents. This makes the S300P D-characteristic range suitable for selected industrial loads and equipment where reliable circuit protection is required alongside tolerance of higher inrush currents.
Typical Applications
- Industrial electrical distribution systems.
- Control circuits and control panels.
- Industrial automation installations.
- Machinery and manufacturing equipment.
- Electrical circuits with higher inrush currents.
- Switchboards and distribution assemblies.
- OEM machinery and professional electrical installations.
