ABB S201UDC-K2A - 2A, 125VDC, 1-Pole, Miniature Circuit Breaker (MCB)

Meet the ABB S201UDC-K2A, a purpose-built miniature circuit breaker designed for precise overcurrent protection in DC applications. With a 2A rating at 125VDC and a compact 1-pole form factor, this MCB provides reliable, single-circuit protection for installations where space is at a premium and dependable operation matters.

• Current rating: 2A
• Voltage rating: 125VDC
• Poles: 1-Pole
• Breaker type: Miniature Circuit Breaker (MCB)

The S201UDC-K2A is ideal for panelboards, switchboards, and control panels in industrial, commercial, and OEM environments. It’s particularly well-suited for small-draw DC circuits in automation equipment, battery management setups, and control logic feeders where consistent protection helps minimize downtime and equipment wear.

Why choose this ABB MCB?

• Precision protection for DC systems: The 125VDC rating aligns with common low-voltage DC applications, offering clear, predictable interruption when faults occur.
• Space-efficient design: A single-pole footprint fits into tight enclosures and dense control panels without sacrificing reliability.
• Reliable ABB engineering: Built to withstand industrial environments and provide steady, long-term protection for critical circuits.

Ideal use cases

• Protection for DC control circuits in manufacturing equipment
• Feeder protection within panelboards and motor control centers that run on low-voltage DC
• OEM assemblies requiring compact, dependable overcurrent protection
• DC-powered automation and sensing networks where space or form factor matters

Practical guidance for deployment

• Verify that the circuit’s continuous current does not exceed the 2A rating to maintain effective protection.
• Install in appropriate enclosures designed for DC breakers, ensuring proper mounting and secure connections.
• Pair with compatible wiring and termination practices suitable for 125VDC systems, following standard electrical safety and installation guidelines.

In environments where every amp counts and panel space is at a premium, the ABB S201UDC-K2A delivers focused, DC-rated protection in a minimal package. This small but mighty MCB helps keep control panels, distribution boards, and OEM equipment safeguarded against overcurrent events, so your systems stay productive and downtime stays down.