ABB S204M-K50UC MCB - 4P - K Curve - 50A - 10kA - AC/DC

ABB S204M-K50UC MCB – 4P – K Curve – 50A – 10kA – AC/DC

The ABB S204M-K50UC is a four-pole 50 A miniature circuit breaker with K tripping characteristic, 10 kA rated breaking capacity and AC/DC supply compatibility for modular low-voltage circuit protection.

SKU: 2CDS274061R0577Alt SKU: S204MK50UCMPN: 2CDS274061R0577
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Why Choose the ABB S204M-K50UC Miniature Circuit Breaker?

The ABB S204M-K50UC is a four-pole miniature circuit breaker from the ABB System pro M compact S200M series, providing dependable overcurrent and short-circuit protection for low-voltage electrical circuits.

With a rated current of 50 A, K tripping characteristic and 10 kA rated breaking capacity, this UC version is designed for applications requiring protection across both AC and DC supplies.

The four-pole configuration and DIN-rail mounting make the S204M-K50UC suitable for modular distribution boards, control panels and other electrical installations where coordinated circuit protection and straightforward installation are required.

Key Advantages

  • ABB System pro M compact S200M series miniature circuit breaker.
  • 50 A rated current for circuit protection applications requiring this current rating.
  • K tripping characteristic for applications requiring the defined response of a K-characteristic MCB.
  • 10 kA rated breaking capacity for effective interruption of specified fault currents.
  • Four-pole configuration provides coordinated protection and switching across four poles.
  • UC version supports both AC and DC supplies.
  • DIN-rail mounting enables straightforward installation in modular electrical equipment.
  • ABB part number 2CDS274061R0577 for reliable product identification and specification matching.

Key Features

  • Product type: miniature circuit breaker (MCB).
  • Series: ABB System pro M compact S200M.
  • Model: S204M-K50UC.
  • Four-pole configuration.
  • K tripping characteristic.
  • Rated current: 50 A.
  • Rated breaking capacity: 10 kA.
  • AC and DC supply compatibility.
  • DIN-rail mounting.
  • Manufacturer part number: 2CDS274061R0577.

Reliable Overcurrent and Short-Circuit Protection

The ABB S204M-K50UC automatically disconnects the electrical supply when an overload or short circuit causes excessive current, helping protect conductors and connected equipment from damage caused by overcurrent conditions.

Its K tripping characteristic provides a defined thermal and magnetic tripping response for applications where a K-characteristic MCB is specified. The UC version supports use with both AC and DC supplies, providing flexibility across suitable low-voltage circuit applications.

Typical Applications

  • Low-voltage electrical distribution systems.
  • Industrial control panels and automation equipment.
  • Commercial and building electrical installations.
  • Distribution boards and modular switchgear.
  • Control and auxiliary circuits.
  • Electrical systems requiring AC and DC circuit protection.

Technical Specifications

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Current 50 A
Poles 4-pole
Phase Three Phase
Device Type MCB
Trip Curve K curve
Breaking Capacity 10 kA
Part number 2CDS274061R0577.
Product series System pro M compact S200M.
Product designation S204M-K50UC.
Number of poles 4.
Tripping characteristic K.
Rated current 50 A.
Supply compatibility AC and DC.
Version UC.
Mounting method DIN rail.
Manufacturer ABB
Series System pro M compact S200M
Model S204M-K50UC
Order code 2CDS274061R0577
Rated breaking capacity 10 kA
Supply AC/DC

Frequently Asked Questions

What is the rated current of the ABB S204M-K50UC?

The ABB S204M-K50UC has a rated current of 50 A.

What tripping characteristic does the S204M-K50UC use?

The S204M-K50UC uses a K tripping characteristic, providing the defined thermal and magnetic response associated with a K-characteristic miniature circuit breaker.

What is the breaking capacity of the ABB S204M-K50UC?

The ABB S204M-K50UC has a rated breaking capacity of 10 kA.

How many poles does the S204M-K50UC have?

The S204M-K50UC is a four-pole miniature circuit breaker, providing coordinated protection and switching across four poles.

Can the S204M-K50UC be used with AC and DC supplies?

Yes. The S204M-K50UC is the UC version and supports both AC and DC supplies, subject to the applicable installation requirements.

Trusted by Electrical Professionals Worldwide

ABB System pro M compact S200M miniature circuit breakers provide reliable overcurrent and short-circuit protection for modular electrical distribution, industrial control and building installation applications.