Why Choose the ABB S203C16 Miniature Circuit Breaker?
The ABB S203C16 is a premium 3-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in commercial, industrial and residential electrical installations. As part of the trusted ABB System pro M Compact S200 series, it delivers dependable circuit protection, robust construction and long service life for modern electrical distribution systems.
Featuring a C curve tripping characteristic, the S203C16 is ideal for circuits with moderate inrush currents, making it suitable for motors, pumps, compressors, HVAC equipment and general-purpose power distribution. Its thermal-magnetic tripping mechanism combines delayed overload protection with rapid short-circuit interruption for maximum safety and equipment protection.
With a rated current of 16 A, a 3-pole configuration and a 6 kA short-circuit breaking capacity, the ABB S203C16 is designed for three-phase systems operating at up to 400 V AC. Its compact DIN rail mounting format allows quick installation within distribution boards, switchgear and industrial control panels.
Key Advantages
- Reliable 3-pole miniature circuit breaker for overload and short-circuit protection.
- 16 A rated current suitable for commercial and industrial electrical circuits.
- C curve tripping characteristic for applications with moderate inrush currents.
- 6 kA breaking capacity provides dependable fault protection.
- Current-limiting design helps minimise fault energy.
- Compact DIN rail mounting simplifies installation.
Key Features
- ABB System pro M Compact S200 series.
- Model S203-C16.
- 16 A rated current.
- 3-pole configuration.
- C trip characteristic.
- 230/400 V AC rated operational voltage.
- 6 kA rated short-circuit breaking capacity.
- Thermal and electromagnetic tripping mechanisms.
- Current-limiting operation.
- Patented twin terminals with captive screws.
- Clear red/green contact position indication.
- DIN rail mounting.
Reliable Protection for Three-Phase Electrical Systems
The ABB S203C16 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping protect wiring, switchgear and connected equipment from electrical faults. Its thermal-magnetic design delivers dependable performance while reducing downtime and improving electrical safety.
The C curve characteristic makes the breaker particularly suitable for applications with moderate starting currents, including industrial motors, pumps, HVAC systems, commercial distribution circuits and OEM machinery. Its compact design and wide range of compatible accessories make it a versatile choice for modern installations.
Typical Applications
- Industrial control panels.
- Three-phase electrical distribution boards.
- Motor and pump protection.
- HVAC installations.
- Commercial buildings.
- OEM machinery and automation equipment.
- Power distribution systems.
