Why is it essential to understand the FAQs for the ABB SB203M-C20 Miniature Circuit Breaker?
Customers often inquire about the ABB SB203M-C20 Miniature Circuit Breaker. Here, we provide key details to help buyers like you make an informed purchase decision.
ABB SB203M-C20 Circuit Breaker: FAQs and Specifications
The ABB SB203M-C20 is primarily designed to provide reliable protection for electrical circuits against both overloads and short circuits. It is a crucial component for safeguarding electrical installations in residential, commercial, and industrial settings.
This MCB features a dual protection mechanism. It employs a delayed thermal tripping mechanism to protect against overloads, which occur when a circuit draws more current than it is rated for over a sustained period. Additionally, it has an electromechanical tripping mechanism that reacts instantly to short circuits, where there is a sudden and excessive flow of current due to a fault in the wiring.
The ABB SB203M-C20 has a high breaking capacity of 10 kA at 240/415V AC. This rating indicates the maximum fault current that the circuit breaker can safely interrupt without being damaged or causing danger. A higher breaking capacity ensures superior protection in the event of significant electrical faults.
The ABB SB203M-C20 is a versatile circuit breaker suitable for a wide range of applications, including residential buildings, commercial establishments, and industrial setups. Its 3-pole configuration and 20A rating make it appropriate for protecting various types of electrical circuits within these environments.
The “C Curve” characteristic indicates the tripping behavior of the circuit breaker in response to overcurrents. C curve MCBs are typically used for circuits with moderate inrush currents, such as lighting circuits and general-purpose outlets. The ABB System pro M compact SB200M series also offers MCBs with B and D curves, which have different tripping characteristics suitable for other types of loads (e.g., inductive loads with higher inrush currents).
The ABB SB203M-C20 can be purchased from Shansen Enterprises, located in Coimbatore, India. Shansen Enterprises is an authorized channel partner of ABB and offers a wide range of ABB electrical products, including contactors, relays, other miniature circuit breakers (MCBs), residual current circuit breakers (RCCBs), pilot lights, and motor starters.
ABB is committed to environmental sustainability. The SB203M-C20 has a recyclability rate of over 90% according to EN45555, and ABB aims to send no non-hazardous waste to landfills from their manufacturing sites. The packaging of the product also utilizes sustainable materials, primarily FSC-certified paper. Furthermore, the product is designed for durability and has end-of-life disassembling instructions available.
The ABB SB203M-C20 has an electrical endurance of 20,000 AC cycles and a mechanical endurance of 20,000 cycles, indicating its long operational lifespan. It has a rated operational current (Ie) of 20A, a rated service short-circuit breaking capacity (Ics) of 7.5 kA, and an energy limiting class of 3. For installation, it has a tightening torque of 2 N·m and offers a degree of protection of IP20. It is designed for operation in ambient air temperatures ranging from -25°C to +55°C and has a pollution degree of 2.
ABB SB203M-C20 Circuit Breaker: Features and Availability
Shansen Enterprises offers the ABB SB203M-C20, a 3-pole, 20A miniature circuit breaker from the System pro M compact SB200M series, designed for reliable electrical circuit protection against overloads and short circuits. This product features a dual tripping mechanism and high breaking capacity, suitable for various applications and compliant with safety standards. It is available for purchase through Shansen Enterprises, an authorized ABB partner in Coimbatore, which also stocks a range of other electrical components. Orders are quickly dispatched across India, and instant quotes are available via WhatsApp Message.







