ABB S301P-D8 MCB – 1P – D Curve – 8A – 25kA

Why Choose the ABB S301P-D8 Miniature Circuit Breaker?

The ABB S301P-D8 is a robust and high-performance miniature circuit breaker (MCB) designed to protect electrical installations against overloads and short circuits. As part of the ABB System pro M compact S300P series, it is developed for demanding industrial installations where dependable circuit protection and high short-circuit performance are required.

This single-pole circuit breaker provides a D-type tripping characteristic, making it suitable for circuits where higher inrush currents can occur. Its compact modular construction allows straightforward installation within electrical distribution and control systems, while the DIN-rail mounting format supports efficient panel assembly.

With a rated current of 8 A and a rated breaking capacity of 25 kA, the S301P-D8 provides high-level protection for AC electrical circuits. Its compact single-pole format makes it suitable for control circuits, machinery and industrial distribution applications where dependable overcurrent protection is required.

Key Advantages

• Compact single-pole miniature circuit breaker for industrial applications.
• 8 A rated current for reliable circuit protection.
• D tripping characteristic suitable for circuits with higher starting or inrush currents.
• 25 kA rated breaking capacity for high short-circuit protection performance.
• Single protected pole with no neutral pole.
• DIN-rail mounting for straightforward installation in electrical distribution equipment.

Key Features

• ABB System pro M compact S300P series.
• S301P-D8 type designation.
• 8 A rated current.
• D tripping characteristic.
• 1-pole configuration with no neutral pole.
• 25 kA rated breaking capacity.
• Designed for AC electrical systems.
• DIN-rail mounting for modular electrical installations.

Reliable Circuit Protection for Industrial Electrical Systems

Miniature circuit breakers such as the ABB S301P-D8 protect electrical circuits by automatically interrupting the supply when an overload or short circuit occurs. The D-type characteristic is particularly suited to applications where equipment can produce comparatively high transient or starting currents.

The S300P series is designed for industrial installations and combines compact modular construction with high short-circuit interruption capability. Its single-pole configuration provides protection for an individual AC circuit conductor without a switched neutral pole.

Typical Applications

• Industrial distribution boards and switchboards.
• Electrical control panels and automation systems.
• Machinery and industrial equipment circuits.
• Control and auxiliary circuits with higher inrush currents.
• Commercial and industrial electrical installations.
• General AC circuit protection requiring a D-type characteristic.