ABB S301P-D40 MCB - 1P - D Curve - 40A - 25kA

ABB S301P-D40 MCB – 1P – D Curve – 40A – 25kA

ABB S301P-D40 miniature circuit breaker, a 1-pole 40 A AC circuit protection device with D tripping characteristic and 25 kA rated breaking capacity for DIN-rail mounting.

SKU: 2CDS381001R0401Alt SKU: S301PD40MPN: 2CDS381001R0401
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Why Choose the ABB S301P-D40 Miniature Circuit Breaker?

The ABB S301P-D40 is a high-quality miniature circuit breaker (MCB) from the ABB System pro M compact S300P series, designed to provide dependable protection for AC electrical circuits. This 1-pole circuit breaker has a rated current of 40 A and a D tripping characteristic, making it suitable for applications where higher starting or inrush currents may occur.

With a rated breaking capacity of 25 kA, the S301P-D40 provides effective interruption of overload and short-circuit faults. Its 1-pole configuration is designed for single-phase circuit protection without a neutral pole, making it suitable for a wide range of distribution, control and equipment protection applications.

Designed for convenient installation, the ABB S301P-D40 is suitable for DIN-rail mounting and forms part of ABB's System pro M compact modular protection platform, supporting organised and reliable electrical installations.

Key Advantages

  • Reliable circuit protection: Provides thermal-magnetic protection against overload and short-circuit conditions.
  • 40 A rated current: Suitable for circuits designed to operate at a rated current of 40 A.
  • D tripping characteristic: Designed for circuits where higher starting and inrush currents can occur.
  • 25 kA breaking capacity: Provides a high level of short-circuit interruption capability.
  • 1-pole configuration: Provides protection for a single circuit pole without a neutral pole.
  • DIN-rail mounting: Enables convenient installation in compatible distribution and control assemblies.
  • System pro M compact platform: Forms part of ABB's modular circuit protection range.

Key Features

  • ABB S301P-D40 miniature circuit breaker
  • System pro M compact S300P series
  • 1-pole construction, no neutral
  • D tripping characteristic
  • Rated current: 40 A
  • Rated breaking capacity: 25 kA
  • AC supply
  • DIN-rail mounting
  • Thermal-magnetic overload and short-circuit protection
  • Part number: 2CDS381001R0401

Dependable D-Characteristic Protection for Higher-Inrush Circuits

The D tripping characteristic of the ABB S301P-D40 is designed for electrical circuits where higher starting or inrush currents may occur during normal equipment operation. This characteristic helps accommodate short-duration starting currents while providing protection against excessive overcurrent conditions.

The thermal protection function responds to sustained overload conditions, while magnetic protection provides rapid operation during high-current short-circuit faults. Combined with its 25 kA rated breaking capacity, the S301P-D40 provides dependable protection for AC distribution and control circuits.

Typical Applications

  • Industrial control and distribution panels
  • Commercial electrical distribution systems
  • Building services and electrical installations
  • Single-phase AC circuits
  • Circuits supplying equipment with elevated starting currents
  • Industrial machinery and equipment circuits
  • Control and auxiliary circuits
  • Modular distribution boards

Technical Specifications

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Current 40 A
Poles 1-pole
Phase Single Phase
Device Type MCB
Trip Curve D curve
Breaking Capacity 25 kA
Part number 2CDS381001R0401
Brand ABB
Product S301P-D40 miniature circuit breaker
Number of poles 1
Neutral No neutral pole
Tripping characteristic D
Rated current 40 A
Mounting DIN rail
Manufacturer ABB
Series System pro M compact S300P
Model S301P-D40
Order code 2CDS381001R0401
Rated breaking capacity 25 kA
Supply AC

Frequently Asked Questions

What is the ABB S301P-D40 used for?

The ABB S301P-D40 is a 1-pole miniature circuit breaker used to protect AC electrical circuits against overload and short-circuit conditions, particularly in applications where higher starting or inrush currents may occur.

What is the rated current of the S301P-D40?

The ABB S301P-D40 has a rated current of 40 A.

What tripping characteristic does this circuit breaker have?

The S301P-D40 has a D tripping characteristic, designed for applications where higher starting and inrush currents can occur.

What is the breaking capacity of the ABB S301P-D40?

The ABB S301P-D40 has a rated breaking capacity of 25 kA.

How is the S301P-D40 installed?

The S301P-D40 is designed for DIN-rail mounting in compatible electrical distribution and control assemblies.

Trusted ABB System pro M compact Circuit Protection

The ABB S301P-D40 combines 1-pole AC circuit protection, a 40 A rated current, D tripping characteristic and 25 kA rated breaking capacity in a DIN-rail-mounted miniature circuit breaker for dependable electrical distribution and control applications.