ABB MCB SH203M-C40 3-Pole 40A 10kA Type C
The ABB SH203M-C40 is a 3-pole 40A Type C MCB with 10kA breaking capacity for three-phase circuit protection in UAE commercial and industrial distribution boards. Its 10kA breaking capacity and 40A rating make it suitable for motor feeder and power circuit protection in higher fault-level panel installations.
Key Features
- 3-pole 40A Type C MCB with 10kA breaking capacity
- Three-phase circuit protection for motors and power loads
- 10kA fault withstand for commercial and industrial installations
- DIN rail mounting for standard panel installation
- Genuine ABB SH200M series quality
Technical Specifications
| Specification |
Details |
| Brand |
ABB |
| Model |
SH203M-C40 |
| Article Number |
2CDS273011R0404 |
| Rated Current |
40A |
| Poles |
3 |
| Tripping Characteristic |
Type C |
| Breaking Capacity |
10kA |
| Voltage |
400V AC |
| Mounting |
DIN Rail |
Applications
- Three-phase motor feeder protection in commercial DBs
- Power circuit protection in commercial and industrial panels
- HVAC and building services three-phase circuit protection
- High fault-level three-phase MCB applications
FAQ
-
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.
-
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.
-
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.
-
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.
-
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.
