ABB S203P-D20 three-pole 20 A D curve miniature circuit breaker from the System pro M compact S200P range for overload and short circuit protection.
The ABB S203P-D20 is a premium three-pole miniature circuit breaker (MCB) designed to provide dependable overload and short circuit protection in commercial, industrial and OEM electrical installations. Part of the trusted ABB System pro M compact S200P series, it delivers high performance circuit protection in a compact DIN rail mounted format.
Featuring a D trip characteristic, the S203P-D20 is ideally suited to circuits with high inrush currents, including motors, transformers, compressors, solenoids and other inductive industrial equipment. Its current limiting construction reduces fault energy, improving installation safety and helping protect valuable electrical equipment.
With a rated current of 20 A, a three-pole configuration and a 25 kA breaking capacity, the ABB S203P-D20 is engineered for demanding applications requiring dependable protection and long service life.
The ABB S203P-D20 combines thermal overload protection with magnetic short circuit protection to safeguard electrical circuits from damaging fault conditions. Its current limiting technology reduces thermal and mechanical stress during faults, helping improve the reliability and lifespan of connected equipment.
The D curve characteristic is ideal where equipment produces high starting currents during normal operation. This makes the S203P-D20 particularly suitable for motors, transformers and other inductive industrial loads where nuisance tripping must be minimised without compromising protection.
| Current | 20 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-D20 |
| Product ID | 2CDS283001R0201 |
| EAN | 4016779591645 |
| Product type | Miniature circuit breaker |
| Rated current | 20 A |
| Number of poles | 3 |
| Trip characteristic | D curve |
| Rated operational voltage | 400 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Breaking capacity (Icu) | 25 kA |
| Service breaking capacity (Ics) | 12.5 kA |
| Energy limiting class | 3 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm |
| Weight | Approx. 0.42 kg |
The ABB S203P-D20 protects three-phase electrical circuits against overloads and short circuits, particularly where high inrush current loads are present.
The breaker has a rated current of 20 A.
A D curve miniature circuit breaker is designed for motors, transformers and other inductive loads with high starting currents.
The ABB S203P-D20 is a three-pole miniature circuit breaker designed to protect three-phase electrical circuits.
The S203P-D20 is designed for installation onto a standard DIN rail inside switchboards, distribution boards and industrial control panels.
ABB System pro M compact miniature circuit breakers are trusted worldwide by electrical contractors, machine builders and industrial engineers for dependable circuit protection, excellent current limiting performance and long service life.
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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...