Mini Circuit Breaker ABB SH201-C25A 1P C 25A 6kA

ABB SH201-C25A is a single-pole (1P) mini circuit breaker designed to provide reliable overcurrent and short-circuit protection for residential and light-commercial electrical installations. With a C-type tripping characteristic and a rated current of 25 A, this device is suitable for circuits that experience moderate inrush currents, such as lighting circuits, general-purpose sockets and small motor loads. The breaker offers a breaking capacity of 6 kA, ensuring safe disconnection under fault conditions and compatibility with common distribution boards.

Advantages

The SH201-C25A combines compact DIN-rail mounting form factor with standardized thermal-magnetic tripping to deliver predictable protection and straightforward coordination within distribution panels. Its C-type curve allows tolerance for short-duration inrush currents while still responding promptly to sustained overloads and short circuits. Installation and replacement are simplified thanks to the standard mini circuit breaker footprint and clear current rating marking.

Suitable for (tasks / use cases)

• Lighting circuits in residential and commercial premises
• General-purpose socket circuits and small appliance protection
• Circuits with moderate motor or transformer inrush (small motors, pumps)
• Protection in single-phase distribution boards and sub-distribution panels

When it may not be suitable

This single-pole 25 A breaker is not suitable for three-phase circuits or installations that require coordinated multi-pole disconnection of all phases. It may be unsuitable where higher breaking capacity is required (above 6 kA) or where specialized tripping characteristics (B, D, or selective types) are needed for specific industrial loads. For high inrush or large motor protection, a different curve or higher rated device should be considered.

Key specifications

• Poles: 1 (single-pole)
• Tripping characteristic: C-type (thermal-magnetic)
• Rated current: 25 A
• Breaking capacity: 6 kA
• Mounting: DIN-rail compatible mini circuit breaker form factor
• Application: overcurrent and short-circuit protection for residential and light-commercial circuits

How to use

Install the breaker on a standardized DIN rail within the distribution board, observing correct polarity and conductor sizing for a 25 A protected circuit. Connect line and load conductors to the indicated terminals and tighten to the torque recommended by the panel manufacturer. Use the breaker to switch and protect the designated circuit; manual operation is possible via the toggle. After a trip, isolate the fault, verify the wiring and load conditions, then reset the breaker by switching the toggle back to the ON position.

What to consider before purchase

• Ensure 25 A rated current matches the intended circuit conductor sizing and load demands
• Verify that a C-type tripping characteristic is appropriate for the load (moderate inrush tolerance)
• Confirm 6 kA breaking capacity is sufficient for the prospective installation fault levels
• Check panel space and DIN-rail compatibility for a single-pole mini breaker

Usage recommendations

Use the SH201-C25A where standard residential or light-commercial protection is required and coordinate it with upstream devices. For motors or circuits with higher inrush currents, consult protection tables or an electrician to determine whether a different tripping curve or higher-rated breaker is more appropriate.