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2CDS383001R0338 ABB S303P-Z4 Miniature Circuit Breaker - 3P - Z - 4 A

2CDS383001R0338 ABB S303P-Z4 Miniature Circuit Breaker – 3P – Z – 4 A

ABB S303P-K6 miniature circuit breaker featuring a 3-pole design, 6 A current rating and K tripping characteristic for industrial overload and short-circuit protection.

SKU: 2CDS383001R0338Alt SKU: S303P-Z4MPN: 2CDS383001R0338
Price
List Price £203.91 ex VAT
Your Price (ex VAT)
£203.91
Manufacturer Lead Time Estimated Delivery 5 weeks
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Manufacturer Lead Time

£203.91

Why Choose the ABB S303P-K6 Miniature Circuit Breaker?

The ABB S303P-K6 (2CDS383001R0338) is a premium three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial and commercial electrical installations. As part of the proven ABB S300P series, it delivers exceptional breaking performance and dependable circuit protection for demanding applications.

Manufactured to recognised IEC and UL standards, the S303P-K6 combines high electrical performance with long-term reliability. Its compact DIN rail design, robust construction and clear contact position indication make installation, operation and maintenance straightforward for panel builders and electrical engineers.

With a 6 A current rating, K tripping characteristic and an impressive 100 kA ultimate short-circuit breaking capacity (IEC 60947-2), this miniature circuit breaker is ideal for protecting motor circuits, transformers and industrial equipment with high inrush currents.

Key Advantages

  • Industrial-grade three-pole miniature circuit breaker.
  • 6 A rated current with K-curve tripping characteristics.
  • Reliable protection against overloads and short circuits.
  • 100 kA ultimate breaking capacity for demanding industrial installations.
  • Quick DIN rail installation.
  • Manufactured to international IEC and UL standards.

Key Features

  • ABB S300P series.
  • 3-pole configuration.
  • 6 A current rating.
  • K tripping characteristic suitable for higher inrush current applications.
  • Rated operating voltage up to 415 V AC.
  • 100 kA ultimate short-circuit breaking capacity.
  • Red ON / green OFF contact position indicator.
  • DIN rail mounting with compatibility across ABB System pro M Compact accessories.

Reliable Protection for Industrial Electrical Systems

The ABB S303P-K6 miniature circuit breaker automatically disconnects electrical circuits during overload or short-circuit conditions, helping protect equipment, minimise downtime and improve electrical safety across industrial installations.

Its K tripping characteristic is specifically suited to applications with higher starting currents, including motors, transformers, compressors and other inductive industrial loads.

Typical Applications

  • Industrial control panels.
  • Motor protection circuits.
  • OEM machinery and equipment.
  • Power distribution systems.
  • Manufacturing facilities.
  • Industrial automation installations.

Technical Specifications

Trip Curve Z curve
Breaking Capacity 25 kA
Current 4 A
Phase Three Phase
Manufacturer ABB
Series S300P
Model S303P-K6
Product ID 2CDS383001R0338
Product type Miniature circuit breaker (MCB)
Current rating 6 A
Number of poles 3
Tripping characteristic K
Rated voltage 415 V AC
Ultimate short-circuit breaking capacity (Icu) 100 kA at 400 to 440 V AC
Rated breaking capacity 25 kA
Frequency 50 / 60 Hz
Protection rating IP20
Mounting type DIN rail
Dimensions (H × W × D) approx. 88 × 52.5 × 69 mm
Weight approx. 0.37 kg
HS Code 85362010
Country of Manufacture Germany
Poles 3-pole
Device Type MCB

Frequently Asked Questions

What is the ABB S303P-K6 used for?

The S303P-K6 provides reliable overload and short-circuit protection for industrial electrical circuits and power distribution systems.

What is the current rating of this circuit breaker?

This miniature circuit breaker has a 6 A rated current.

Why choose a K tripping characteristic?

The K curve is ideal for protecting motors, transformers and other equipment with higher inrush currents while maintaining reliable circuit protection.

How is the breaker installed?

The ABB S303P-K6 is designed for fast installation onto a standard DIN rail inside electrical distribution panels.

Where is this miniature circuit breaker typically used?

It is commonly used in industrial switchboards, machine control panels, OEM equipment and commercial electrical distribution systems.

Trusted by Industrial Professionals Worldwide

ABB S300P miniature circuit breakers are trusted by panel builders, OEM manufacturers and industrial engineers for delivering dependable protection, high breaking performance and long operational life in demanding electrical installations.

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