2CDS274337R0407 ABB SU204M-K8 Miniature Circuit Breaker 4P K 8A 10kA UL489

2CDS274337R0407 ABB SU204M-K8 Miniature Circuit Breaker 4P K 8A 10kA UL489

ABB SU204M-K8 is a four-pole 8 A K-characteristic miniature circuit breaker with a 10 kA UL 489 interrupting rating for industrial overload and short-circuit protection.

SKU: 2CDS274337R0407Alt SKU: SU204MK8MPN: 2CDS274337R0407
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Why Choose the ABB SU204M-K8 Miniature Circuit Breaker?

The ABB SU204M-K8 is a high-performance four-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in industrial electrical distribution and control applications. As part of the proven ABB SU200M / System pro M compact series, it combines a compact DIN-rail format with high interrupting capacity and dependable circuit protection.

Designed with a K tripping characteristic, the SU204M-K8 is particularly suited to circuits where brief inrush currents can occur during normal operation. Its thermal-magnetic protection mechanism provides automatic disconnection during overload or short-circuit conditions while helping avoid unnecessary tripping from permissible transient currents.

With a rated current of 8 A, a four-pole configuration and a 10 kA UL 489 interrupting rating, the SU204M-K8 provides robust protection for industrial control, machinery and distribution circuits. ABB order code 2CDS274337R0407 identifies this specific four-pole K-characteristic configuration.

Key Advantages

  • Reliable overload and short-circuit protection for industrial electrical circuits.
  • 8 A rated current suitable for control, machinery and distribution applications.
  • Four-pole configuration provides multi-pole circuit protection and isolation.
  • K tripping characteristic suited to circuits with transient or inrush currents.
  • 10 kA UL 489 interrupting rating for robust industrial circuit protection.
  • Compact modular construction for straightforward DIN-rail installation.

Key Features

  • ABB SU200M miniature circuit breaker series.
  • 8 A rated current.
  • Four-pole (4P) configuration.
  • K tripping characteristic.
  • 10 kA interrupting rating according to UL 489.
  • Thermal-magnetic protection against overloads and short circuits.
  • Part of the ABB UL 489 / UL 1077 MCB product group.
  • Compact modular design for installation on standard DIN rail.

Reliable Circuit Protection for Industrial Systems

Miniature circuit breakers such as the ABB SU204M-K8 automatically disconnect a circuit when excessive current results from an overload or short circuit. This helps protect wiring, electrical equipment and downstream components while providing a convenient resettable alternative to conventional fuse protection.

The K characteristic is designed for applications where equipment can produce elevated short-duration starting or inrush currents. Combined with the SU200M series' high interrupting capacity and modular construction, the SU204M-K8 is well suited to industrial control panels, machinery and electrical distribution systems requiring dependable circuit protection.

Typical Applications

  • Industrial electrical control panels.
  • Machinery and automation systems.
  • Control and auxiliary circuits.
  • Industrial power distribution equipment.
  • Circuits with inductive loads and transient inrush currents.
  • OEM machinery and equipment installations.

Technical Specifications

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Certification UL 489
Series SU200M / System pro M compact
ABB order code 2CDS274337R0407
Product type Miniature circuit breaker (MCB)
ABB product group UL 489 / UL 1077 MCB
Rated current 8 A
Number of poles 4
Tripping characteristic K
Interrupting rating 10 kA
Protection principle Thermal-magnetic
Mounting type DIN rail

Frequently Asked Questions

What is the ABB SU204M-K8 used for?

The ABB SU204M-K8 is a four-pole miniature circuit breaker designed to protect electrical circuits against overload and short-circuit currents in industrial distribution, control and machinery applications.

What is the rated current of the SU204M-K8?

The SU204M-K8 has a rated current of 8 A.

What does the K characteristic mean?

The K tripping characteristic is suited to circuits that can experience relatively high short-duration inrush currents, helping provide dependable protection while reducing unwanted tripping during normal equipment starting conditions.

What is the breaking capacity of the ABB SU204M-K8?

The SU204M-K8 has a 10 kA interrupting rating and forms part of ABB's UL 489 / UL 1077 miniature circuit breaker product group.

What is the ABB order code for the SU204M-K8?

The ABB order code for the SU204M-K8 four-pole 8 A K-characteristic miniature circuit breaker is 2CDS274337R0407.

Trusted ABB Circuit Protection

ABB System pro M compact miniature circuit breakers provide dependable overload and short-circuit protection for electrical distribution, machinery and industrial control applications, combining modular installation with proven circuit protection technology.