Mini circuit breaker ABB SH201-B10A 1P B curve 10 A 6 kA (MPN 2CDS211001R0105)

The ABB SH201-B10A single-pole mini circuit breaker is designed for overcurrent protection in residential and light commercial electrical installations. With a B tripping characteristic and a rated current of 10 A, this DIN-rail mount breaker interrupts fault currents up to 6 kA and protects branch circuits from overloads and short circuits. It is intended for general-purpose circuits such as lighting, small socket circuits and other similar low-inrush loads.

Advantages

This mini circuit breaker offers compact DIN-rail form factor suitable for standard distribution boards, reliable B-curve tripping for sensitive protection of resistive and light-inductive loads, and a 6 kA breaking capacity that meets common domestic and small commercial requirements. Its single-pole configuration simplifies installation for single-phase branch circuits and helps maintain clear circuit segregation.

Suitable for

• Lighting circuits in homes and apartments
• Small socket outlets and general-purpose branch circuits
• Distribution boards in small offices and retail spaces
• Protection of resistive loads and equipment with low to moderate inrush currents

When it may not be suitable

This breaker may not be appropriate for circuits with high inrush currents such as large motors, HVAC compressors, or heavy-duty industrial equipment where a C- or D-curve characteristic or a motor-protection device would be more suitable. It is also not intended for use as a main isolator or where a higher breaking capacity is required by the installation standard.

Key specifications

• Poles: single-pole
• Tripping characteristic: B curve (early tripping on moderate surges)
• Rated current: 10 A
• Breaking capacity: 6 kA
• Mounting: DIN-rail
• Intended application: residential and light commercial branch circuits

How to use

Mount the breaker on a standard DIN rail inside the distribution board and connect the phase conductor to the breaker input and the load conductor to the output terminal, ensuring secure torque on terminal screws according to installation practice. Use the breaker as the overcurrent protective device for the designated 10 A circuit; test the switching manually after installation and label the circuit on the distribution board. For safe operation, isolate the supply before wiring and follow local wiring regulations and standards.

What to consider before purchase

• Verify that a B-curve tripping characteristic is suitable for the type of load on the circuit.
• Confirm 10 A rated current matches the design and protective coordination of the circuit.
• Ensure the 6 kA breaking capacity meets the requirements of the installation or local code.
• Check available space and DIN-rail compatibility in the distribution board.

Usage recommendations

Use this breaker for standard lighting and small general-purpose circuits where moderate surge immunity and compact DIN-rail mounting are required. Coordinate with upstream and downstream protection and perform periodic inspection to ensure reliable operation.