ABB S301P-K4NA MCB - 1P+N - K Curve - 4A - 25kA

ABB S301P-K4NA MCB – 1P+N – K Curve – 4A – 25kA

ABB S301P-K4NA miniature circuit breaker, a 4 A 1P+N switched-neutral K-characteristic AC circuit breaker with a 25 kA rated breaking capacity for electrical circuit protection.

SKU: 2CDS381103R0337Alt SKU: S301PK4NAMPN: 2CDS381103R0337
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Why Choose the ABB S301P-K4NA Miniature Circuit Breaker?

The ABB S301P-K4NA is a compact and reliable miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in electrical installations. As part of the ABB System pro M compact S300P series, it combines a K tripping characteristic with a high 25 kA rated breaking capacity for dependable circuit protection.

The S301P-K4NA features a 1P+N configuration with switched neutral, allowing the live conductor and neutral to be switched as part of the circuit arrangement. Its thermal-magnetic overcurrent protection and compact modular construction make it suitable for professional electrical distribution, control panels and equipment installations.

With a 4 A rated current, K tripping characteristic and 25 kA rated breaking capacity, the S301P-K4NA is designed for selected circuits requiring reliable overcurrent and short-circuit protection. DIN-rail mounting supports straightforward integration into suitable distribution boards and electrical assemblies.

Key Advantages

  • Compact 1P+N miniature circuit breaker with switched neutral.
  • 4 A rated current for low-current circuit protection applications.
  • K tripping characteristic for selected electrical circuits and equipment.
  • 25 kA rated breaking capacity for dependable short-circuit protection.
  • Switched neutral arrangement for convenient circuit isolation.
  • 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-K4NA 1P+N configuration.
  • 4 A rated current.
  • K tripping characteristic.
  • 25 kA rated breaking capacity.
  • Switched neutral configuration.
  • 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 with Switched Neutral

The ABB S301P-K4NA 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 K tripping characteristic provides a defined trip response for suitable electrical circuits and equipment. This makes the S300P K-characteristic configuration suitable for selected applications where dependable circuit protection is required. The switched neutral arrangement provides switching of both the live circuit path and neutral.

Typical Applications

  • Industrial and commercial electrical distribution systems.
  • Control circuits and control panels.
  • Industrial automation installations.
  • Machinery and manufacturing equipment.
  • Low-current electrical circuits.
  • Switchboards and distribution assemblies.
  • OEM machinery and professional electrical installations.

Technical Specifications

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Current 4 A
Poles 1-pole + N
Phase Single Phase
Device Type MCB
Trip Curve K curve
Breaking Capacity 25 kA
Protection rating IP20
Product type Miniature circuit breaker
ABB part number 2CDS381103R0337
Number of poles 1P+N
Neutral Switched neutral
Rated current 4 A
Tripping characteristic K
Mounting type DIN rail
Terminal type Screw terminals
Rated frequency 50 / 60 Hz
Manufacturer ABB
Series System pro M compact S300P
Model S301P-K4NA
Order code 2CDS381103R0337
Rated breaking capacity 25 kA
Supply AC

Frequently Asked Questions

What is the ABB S301P-K4NA used for?

The ABB S301P-K4NA is a 1P+N miniature circuit breaker used to protect electrical circuits against overloads and short circuits in electrical distribution, control and equipment applications.

What is the rated current of the S301P-K4NA?

The S301P-K4NA has a 4 A rated current.

What is the tripping characteristic of this circuit breaker?

The S301P-K4NA has a K tripping characteristic for selected electrical circuit protection applications.

What is the breaking capacity of the ABB S301P-K4NA?

The circuit breaker has a 25 kA rated breaking capacity.

How many poles does the S301P-K4NA have?

The S301P-K4NA has a 1P+N configuration with a switched neutral.

How is the ABB S301P-K4NA mounted?

The circuit breaker is designed for DIN-rail mounting in suitable distribution boards, control panels and electrical assemblies.

Trusted by Electrical Professionals

ABB System pro M compact S300P miniature circuit breakers provide dependable overcurrent protection for electrical distribution, control panels, machinery and automation installations.