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2CCS813001R0844 ABB S803B-C125 TP 125A MCB 16kA
ABB S803B-C125 three-pole high-performance miniature circuit breaker with a 125 A rating, C tripping characteristic and 16 kA breaking capacity at 230/400 V AC.
Why Choose the ABB 2CCS813001R0844 S803B-C125 High-Performance MCB?
The ABB 2CCS813001R0844 S803B-C125 is a robust three-pole high-performance miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. As part of the proven ABB S800B series, it provides dependable current-limiting protection for residential, commercial and industrial power distribution systems.
This circuit breaker uses two complementary tripping mechanisms to provide reliable protection. A thermal release responds to sustained overload conditions, while an electromagnetic release rapidly disconnects the circuit during short-circuit faults. Its fast arc-extinguishing technology helps reduce the energy allowed through to downstream equipment.
With a rated current of 125 A, a C tripping characteristic and a maximum breaking capacity of 16 kA at 230/400 V AC, the S803B-C125 is suitable for three-phase circuits with moderate inrush currents. Its cage terminals and DIN rail format support secure, efficient installation inside distribution boards and industrial control panels.
Key Advantages
- High-performance three-pole miniature circuit breaker.
- 125 A rated current for demanding distribution circuits.
- 16 kA breaking capacity at 230/400 V AC.
- C curve characteristic suitable for moderate starting currents.
- Thermal and electromagnetic releases provide comprehensive circuit protection.
- Current-limiting operation helps minimise stress on downstream equipment.
Key Features
- ABB S800B high-performance MCB series.
- 125 A rated current.
- Three-pole configuration.
- C tripping characteristic.
- 16 kA maximum breaking capacity.
- 230/400 V AC rated operational voltage.
- Cage terminals for secure conductor connections.
- Thermal overload and electromagnetic short-circuit protection.
Reliable Circuit Protection for Power Distribution
The ABB S803B-C125 continuously carries normal operating current while monitoring the circuit for potentially damaging fault conditions. During an overload, its thermal mechanism trips after a controlled delay, while the electromagnetic mechanism provides rapid disconnection when a high short-circuit current occurs.
Its current-limiting design and fast arc extinction help reduce peak fault currents and let-through energy. This can minimise damage to cables, connected equipment and distribution components while improving the overall reliability of the electrical installation.
Typical Applications
- Three-phase electrical distribution boards.
- Industrial control panels and switchgear.
- Commercial power distribution systems.
- Machinery and production equipment.
- Motor and transformer supply circuits.
- Residential and industrial electrical installations.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 125 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 16 kA | |
| Manufacturer | ABB | |
| Series | S800B | |
| Model | S803B-C125 | |
| Product ID | 2CCS813001R0844 | |
| Product type | High-performance miniature circuit breaker | |
| Rated current | 125 A | |
| Tripping characteristic | C Curve | |
| Number of poles | 3 | |
| Rated operational voltage | 230 / 400 V AC | |
| Maximum breaking capacity | 16 kA | |
| Protection mechanism | Thermal and electromagnetic | |
| Terminal type | Cage terminal | |
| Mounting type | DIN rail | |
| Standards | IEC / EN 60947-2 and EN 60898-1 | |
| Dimensions (H × W × D) | approx. 82.5 × 81 × 95 mm | |
| Weight | approx. 0.74 kg |
Frequently Asked Questions
What is the ABB 2CCS813001R0844 used for?
This high-performance MCB protects three-phase electrical circuits against overloads and short circuits in residential, commercial and industrial installations.
What is the rated current of the S803B-C125?
The circuit breaker has a rated current of 125 A.
What breaking capacity does this circuit breaker provide?
The S803B-C125 provides a maximum breaking capacity of 16 kA at 230/400 V AC.
What does the C tripping characteristic mean?
A C curve circuit breaker is designed for circuits with moderate inrush currents, including many commercial loads, machinery and general power distribution applications.
How is the ABB S803B-C125 installed?
The breaker is designed for installation on a standard DIN rail within a suitable distribution board, switchgear assembly or electrical control panel.
Trusted High-Performance Protection from ABB
ABB S800 high-performance circuit breakers are widely used by panel builders, electrical contractors and industrial engineers to provide reliable overload and short-circuit protection in demanding power distribution applications.
