2CDS271337R0277 ABB SU201M-K2 Miniature Circuit Breaker 2 A 1P K 10 kA UL489

Why Choose the ABB SU201M-K2 Miniature Circuit Breaker?

The ABB SU201M-K2 is a high-performance single-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection for branch circuits in commercial and industrial electrical installations. As part of the ABB SU200M System pro M compact series, it combines a compact modular design with UL 489 branch-circuit protection performance.

This miniature circuit breaker features a K tripping characteristic, making it particularly suitable for circuits supplying resistive and inductive loads where reliable protection and tolerance of normal equipment starting currents are required. Its thermal-magnetic operating principle provides automatic circuit interruption under overload and short-circuit conditions.

With a rated current of 2 A and a 10 kA UL 489 interrupting rating, the SU201M-K2 provides compact protection for control, automation and industrial electrical circuits. ABB order code 2CDS271337R0277 identifies this specific single-pole K-characteristic model.

Key Advantages

• Compact UL 489 miniature circuit breaker for branch-circuit protection.
• 2 A rated current suitable for low-current electrical and control circuits.
• 10 kA interrupting rating for dependable fault protection.
• K tripping characteristic suitable for resistive and inductive loads.
• Single-pole configuration for space-efficient circuit protection.
• DIN-rail format simplifies integration into electrical distribution and control panels.

Key Features

• ABB SU200M System pro M compact series.
• 2 A rated current.
• 1-pole configuration.
• K-characteristic thermal-magnetic tripping.
• 10 kA interrupting rating according to UL 489.
• Suitable for AC and DC circuit protection.
• Designed for branch-circuit protection in industrial and commercial electrical systems.
• Compact modular construction for DIN-rail-mounted installations.

Reliable Branch-Circuit Protection

Miniature circuit breakers such as the ABB SU201M-K2 protect electrical wiring and connected equipment against excessive current caused by overloads and short circuits. Thermal and magnetic tripping mechanisms provide automatic disconnection while allowing the breaker to be reset after the cause of the fault has been corrected.

The K characteristic is well suited to applications with inductive loads and equipment that can produce higher normal starting currents. Combined with its UL 489 branch-circuit protection capability and compact DIN-rail construction, the SU201M-K2 is designed for dependable integration into modern industrial and commercial electrical systems.

Typical Applications

• Industrial control and automation panels.
• Machine control circuits.
• Branch-circuit protection.
• Inductive and resistive electrical loads.
• Commercial electrical distribution systems.
• Industrial machinery and electrical equipment.