ABB SH203M-C16 MCB 16A 3-Pole 10kA Type C

ABB SH203M-C16 3-Pole 16A Type C MCB

A genuine ABB 3-pole MCB, 16A, 10kA breaking capacity — commonly used to protect a 3-phase circuit such as a central AC unit or larger appliance in a villa or commercial distribution board.

Key Features

• 3-pole standard miniature circuit breaker
• Current rating: 16A
• Breaking capacity: 10kA
• Model: SH203M-C16 (2CDS273011R0164)
• Brand: ABB
• Compact footprint for space-constrained installations

Technical Specifications

Applications

• Villa distribution boards — 3-phase AC and appliance circuits
• Residential sub-panels
• Commercial lighting and power circuits

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 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.
• Why 3-pole for this circuit?
  A 3-pole (3P) breaker switches all three phases of a three-phase supply, which is what a central AC unit or larger three-phase appliance circuit needs — a single-pole breaker only switches the line conductor on a single-phase circuit.
• Is this MCB compatible with other ABB DIN-rail distribution boards?
  Yes — it's a standard DIN-rail 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, even for a like-for-like replacement.