ABB Miniature Circuit Breaker S203M-C16 is a 3-pole, 16A MCB designed for reliable protection in 230V distribution systems. With a 10kA breaking capacity and DIN-rail mounting, it suits control panels, switchboards, and industrial installations across the UAE.
Key Features
- Patented twin terminals: Captive screws provide highest comfort, safety, and flexibility
- Space and time saving design: Unique bottom-fixing auxiliary contact
- Wide range of accessories: Enhance MCB functions for control and remote monitoring
- Compliance with worldwide standards: Ensures versatility for various applications
- Wide and complete range of MCBs: Catering to different markets and applications
Technical Specifications
| Specification | Details |
| Brand | ABB |
| Model | S203M-C16 |
| Part Number | 2CDS273001R0164 |
| Current Rating | 16 A |
| Voltage | 230 V AC |
| Pole Configuration | 3P |
| Breaking Capacity | 10 kA |
| Mounting Type | DIN Rail |
| Circuit Breaker Type | Standard MCB |
Applications
Ideal use cases
- Control panels and motor control centers in industrial settings
- Distribution boards in commercial and residential complexes
- Systems requiring reliable 3P protection with easy remote monitoring options
FAQ
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What's the difference between an MCB and an RCCB/RCD?
An MCB (miniature circuit breaker) protects wiring and connected equipment against overload and short-circuit current. An RCCB/RCD protects against earth leakage by monitoring current imbalance. The two are complementary and are normally installed together in a distribution board.
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What does the Type C tripping curve mean?
Type C trips at 5–10x rated current, giving enough headroom for motors, transformers, and ballast/LED-driver inrush without nuisance tripping.
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What does the 10kA breaking capacity mean?
10kA is the maximum fault current this MCB can safely interrupt without damage. It should be equal to or higher than the prospective fault current at its installation point in the board.
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How many poles do I need?
A 3-pole (3P) breaker switches all three phases on a three-phase circuit without a switched neutral.
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Is this MCB compatible with other ABB DIN-rail distribution boards?
Yes — it's a standard DIN-rail (EN 60715) mounted breaker and clips directly into ABB's modular consumer units and distribution boards alongside other ABB DIN-rail devices.
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Can I install this myself?
No. This is a distribution board component and must be installed and connected by a licensed electrician in accordance with UAE wiring regulations — it is not a DIY consumer product.
