Product Description
SB203M-C20 Miniature Circuit Breaker - 3P - C - 20 A
System pro M compact SB200M Miniature Circuit Breakers are current limiting. They have two different tripping mechanisms, the delayed thermal tripping mechanism for overload protection and the electromechanic tripping mechanism for short circuit protection. They are available in different characteristics (B,C,D), configurations (1P,1P+N,2P,3P,3P+N,4P), breaking capacities (up to 10 kA at 240/415 V AC) and rated currents (up to 63A). All MCBs of the product range SB200M comply with IS/IEC 60898-1, allowing the use for residential, commercial and industrial applications.
Strong and Dependable Circuit ProtectionFeaturing a short circuit breaking capacity of 6kA and a rated current of 20A, the ABB SB203M-C20 Triple Pole MCB provides robust safeguarding against overloads and short circuits. Built to internationally recognized IEC/EN 60898-1 standards, this MCB delivers dependability for a range of applications, particularly where three-phase systems are utilized.
Engineered for Longevity and SafetyManufactured from high-grade flame-retardant plastic, the SB203M-C20 offers outstanding durability. With a mechanical lifespan of 20,000 cycles and an electrical lifespan of 10,000 cycles, it is designed for demanding environments. The IP20 protection level ensures added safety for users and installations alike.
Effortless Installation and OperationThe MCB's modular design and DIN rail mounting make installation straightforward in distribution boards or switch panels. Clear red/green contact position indicators facilitate rapid status checks, while a generous terminal capacity up to 25mm2 accommodates a diverse range of cable sizes.
FAQ's of ABB Triple Pole MCB /SB203M-C20:
Q: How does the ABB SB203M-C20 Triple Pole MCB ensure circuit protection?
A: This MCB utilizes a 6kA short-circuit breaking capacity and a C Curve tripping characteristic to promptly disconnect power during overloads and faults, effectively safeguarding your electrical system.
Q: What applications are suitable for the SB203M-C20 MCB?
A: The SB203M-C20 is ideal for industrial, commercial, and larger residential settings requiring three-phase protection with a rated current up to 20A at 415V AC.
Q: When should I use a triple pole MCB like the SB203M-C20?
A: Triple pole MCBs are essential in three-phase systems where protection across all lines is needed: for example, in large commercial buildings, factories, or installations with three-phase equipment.
Q: Where can I install the SB203M-C20 MCB?
A: This MCB is DIN rail mountable, making it suitable for standard modular electrical panels or distribution boards used in India and globally.
Q: What is the benefit of the red/green contact position indicator?
A: The red/green window provides clear visual feedback of the MCB's status, helping users and technicians quickly verify whether the circuit is open or closed.
Q: How long does the SB203M-C20 MCB last?
A: It is engineered for durability, with a mechanical life of up to 20,000 cycles and electrical endurance for 10,000 operations, ensuring reliable long-term use.
Q: What process should be followed during installation?
A: Ensure the main supply is switched off, mount the MCB onto a DIN rail, connect cables up to 25mm2 securely into terminals, and verify proper seating and status using the contact position indicator.