ABB S203-D6 three-pole miniature circuit breaker with a 6 A rating, D tripping characteristic and 6 kA breaking capacity for commercial and industrial electrical protection.
£80.97
The ABB S203-D6 is a dependable three-pole miniature circuit breaker (MCB) engineered to provide reliable protection against overloads and short circuits in commercial, industrial and OEM electrical installations. As part of the renowned ABB System pro M compact S200 series, it combines robust performance with compact dimensions for modern electrical distribution systems.
Designed with both a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for rapid short-circuit interruption, the S203-D6 delivers dependable circuit protection in demanding applications. Its D tripping characteristic makes it particularly suitable for protecting circuits with high inrush currents, including electric motors, transformers, solenoids and other inductive loads.
With a rated current of 6 A, a three-pole configuration and a rated short-circuit capacity of 6 kA at 400 V AC, the ABB S203-D6 is ideal for safeguarding three-phase circuits. Its compact modular construction enables quick installation on standard DIN rails within electrical panels and switchboards.
The ABB S203-D6 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, equipment and personnel. Its current-limiting design reduces fault energy, helping minimise damage to connected electrical systems.
Its D-curve characteristic makes it especially suitable for protecting circuits supplying motors, transformers, magnetic contactors and other equipment that experiences high transient inrush currents during start-up.
| Current | 6 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200 |
| Model | S203-D6 |
| Product ID | 2CDS253001R0061 |
| EAN | 4016779530880 |
| Product type | Miniature circuit breaker |
| Number of poles | 3 |
| Rated current | 6 A |
| Tripping characteristic | D curve |
| Rated operational voltage | 400 V AC |
| Maximum operational voltage | 440 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit capacity (Icn) | 6 kA at 400 V AC |
| Rated ultimate breaking capacity (Icu) | 10 kA at 400 V AC |
| Rated service breaking capacity (Ics) | 7.5 kA at 400 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Protection rating | IP20 |
| Protection in enclosure | IP40 |
| Mounting type | 35 mm DIN rail |
| Mechanical endurance | 20,000 operating cycles |
| Dimensions (H × W × D) | approximately 88 × 52.5 × 69 mm |
| Weight | approximately 0.375 kg |
The ABB S203-D6 protects three-phase electrical circuits against overloads and short circuits, particularly those supplying equipment with high starting currents.
The ABB S203-D6 has a rated current of 6 A.
The D-curve allows higher temporary inrush currents before magnetic tripping, making it suitable for motors, transformers and other inductive equipment.
The circuit breaker provides a 6 kA rated short-circuit breaking capacity according to IEC/EN 60898-1 and a 10 kA ultimate breaking capacity (Icu) according to IEC/EN 60947-2.
The S203-D6 is designed for quick installation on a standard 35 mm DIN rail inside electrical switchboards and control panels.
ABB System pro M compact S200 miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and industrial automation engineers for reliable circuit protection and long-term performance.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...