ABB S204M-K0.5UC MCB - 4P - K Curve - 0.5A - 10kA - AC/DC

ABB S204M-K0.5UC MCB – 4P – K Curve – 0.5A – 10kA – AC/DC

ABB S204M-K0.5UC 4-pole 0.5 A K-characteristic miniature circuit breaker with 10 kA breaking capacity for AC and DC circuit protection.

SKU: 2CDS274061R0157Alt SKU: S204MK0.5UCMPN: 2CDS274061R0157
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Why Choose the ABB S204M-K0.5UC Miniature Circuit Breaker?

The ABB S204M-K0.5UC is a compact and reliable 4-pole miniature circuit breaker (MCB) designed to provide overcurrent and short-circuit protection in electrical distribution and control systems. As part of the ABB System pro M compact S200M series, it is designed for flexible AC and DC applications where dependable circuit protection and straightforward DIN-rail installation are required.

The S204M-K0.5UC combines a K tripping characteristic with a 0.5 A rated current and a 10 kA rated breaking capacity. Its UC configuration is intended for use with both alternating and direct current systems, providing a flexible protection solution for a wide range of electrical installations.

With its 4-pole configuration and DIN-rail mounting format, the S204M-K0.5UC is suitable for multi-pole circuit protection in distribution boards, control panels and industrial electrical systems. The S200M UC series is designed for compatibility with ABB System pro M compact accessories, helping simplify installation and maintenance.

Key Advantages

  • Compact 4-pole miniature circuit breaker for AC and DC applications.
  • 0.5 A rated current for low-current circuit protection.
  • K tripping characteristic suitable for circuits with defined overload and short-circuit protection requirements.
  • 10 kA rated breaking capacity for effective short-circuit protection.
  • Flexible AC and DC operation provided by the S200M UC design.
  • DIN-rail mounting enables straightforward installation in electrical distribution and control panels.

Key Features

  • ABB System pro M compact S200M series.
  • 4-pole miniature circuit breaker.
  • 0.5 A rated current.
  • K tripping characteristic.
  • 10 kA rated breaking capacity.
  • Designed for AC and DC applications.
  • DIN-rail mounting for modular electrical installations.
  • Compatible with ABB System pro M compact accessories.

Reliable Circuit Protection for AC and DC Systems

Miniature circuit breakers such as the ABB S204M-K0.5UC protect electrical circuits by automatically disconnecting the supply when an excessive current or short circuit occurs. The K tripping characteristic provides a defined response to overcurrent conditions, helping protect conductors and connected electrical equipment.

The S200M UC series extends the ABB System pro M compact range with miniature circuit breakers suitable for both AC and DC applications. Its high short-circuit breaking capacity and compatibility with System pro M compact accessories make it suitable for electrical distribution, control and industrial installations.

Typical Applications

  • Electrical distribution boards and modular control panels.
  • Industrial control panels and automation systems.
  • AC and DC circuit protection applications.
  • Commercial and industrial electrical installations.
  • Control and auxiliary circuits requiring multi-pole protection.
  • Modular DIN-rail mounted distribution systems.

Technical Specifications

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Current 0.5 A
Poles 4-pole
Phase Three Phase
Device Type MCB
Trip Curve K curve
Breaking Capacity 10 kA
Product type Miniature circuit breaker (MCB)
Rated current 0.5 A
Number of poles 4
Tripping characteristic K
Rated AC voltage 400 V AC
Rated DC voltage 440 V DC
Application AC and DC
Mounting type DIN rail
Terminal type Screw
Protection rating IP20, IP40
Dimensions (H × W × D) approx. 85 × 70 × 69 mm
Weight approx. 0.5 kg
Frequency 50 / 60 Hz
Standards IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235
Manufacturer ABB
Series System pro M compact S200M
Model S204M-K0.5UC
Order code 2CDS274061R0157
Rated breaking capacity 10 kA
Supply AC/DC

Frequently Asked Questions

What is the ABB S204M-K0.5UC used for?

The ABB S204M-K0.5UC is a 4-pole miniature circuit breaker used to provide overcurrent and short-circuit protection in AC and DC electrical distribution and control systems.

What is the rated current of the S204M-K0.5UC?

The circuit breaker has a 0.5 A rated current.

What is the breaking capacity of this circuit breaker?

The S204M-K0.5UC has a 10 kA rated breaking capacity.

What tripping characteristic does the S204M-K0.5UC have?

The circuit breaker has a K tripping characteristic for defined overcurrent protection.

Can the S204M-K0.5UC be used with AC and DC systems?

Yes. The UC version of the S204M-K0.5UC is designed for both AC and DC applications, with a rated AC voltage of 400 V and rated DC voltage of 440 V.

Trusted by Electrical Engineers Worldwide

ABB System pro M compact S200M miniature circuit breakers provide flexible circuit protection for AC and DC electrical installations, combining dependable short-circuit protection with modular DIN-rail mounting and compatibility with ABB accessories.