ABB S301P-D3NA MCB – 1P+N – D Curve – 3A – 25kA

Why Choose the ABB S301P-D3NA Miniature Circuit Breaker?

The ABB S301P-D3NA is a compact 1P+N miniature circuit breaker (MCB) with a switched neutral, designed to provide reliable overcurrent and short-circuit protection in AC electrical installations. As part of the ABB System pro M compact S300P series, it combines a D tripping characteristic with a 3 A rated current for dependable protection of circuits with higher inrush current requirements.

The S301P-D3NA provides protection through the phase pole while switching the neutral conductor, making it suitable for single-phase AC circuits where neutral isolation is required. Its D characteristic is designed for applications where higher temporary starting or inrush currents can occur without unwanted tripping.

With a rated current of 3 A and a rated breaking capacity of 25 kA, the S301P-D3NA provides high short-circuit interruption capability for demanding AC installations. Its compact DIN-rail mounting format supports straightforward integration into distribution boards, control cabinets and electrical assemblies.

Key Advantages

• Compact 1P+N miniature circuit breaker with switched neutral.
• 3 A rated current suitable for low-current AC circuit protection.
• D tripping characteristic suited to circuits with higher inrush currents.
• 25 kA rated breaking capacity for high-level short-circuit protection.
• Switched neutral provides convenient isolation of the neutral conductor.
• DIN-rail mounting enables convenient installation in electrical distribution equipment.

Key Features

• ABB System pro M compact S300P series.
• S301P-D3NA miniature circuit breaker.
• 1P+N configuration with switched neutral.
• 3 A rated current.
• D tripping characteristic.
• 25 kA rated breaking capacity.
• Designed for AC supply applications.
• DIN-rail mounting for distribution boards and control cabinets.
• Compact design for space-efficient electrical installations.

Reliable Circuit Protection for Electrical Installations

Miniature circuit breakers such as the ABB S301P-D3NA protect electrical circuits against overload and short-circuit conditions. The D tripping characteristic is suited to circuits where higher temporary inrush currents can occur, helping minimise unwanted tripping while maintaining circuit protection.

The S300P series is designed for reliable circuit protection in modern electrical distribution installations. The 1P+N configuration with switched neutral provides a practical solution for single-phase circuits where both the phase circuit and neutral conductor require coordinated switching.

Typical Applications

• Single-phase AC electrical distribution systems.
• Control panels and electrical cabinets.
• Industrial machinery and control equipment.
• Circuits with higher starting or inrush currents.
• Commercial electrical installations.
• Single-phase circuits requiring switched-neutral functionality.
• Electrical installations requiring high short-circuit breaking capacity.