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S203-D32 Miniature Circuit Breaker – 3P – D – 32 A
ABB S203-D32 three-pole miniature circuit breaker with a 32 A rating, D tripping characteristic and 10 kA breaking capacity for industrial and commercial electrical protection.
£44.57
Why Choose the ABB S203-D32 Miniature Circuit Breaker?
The ABB S203-D32 is a robust three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in commercial and industrial electrical installations. Part of the trusted ABB System pro M compact S200 series, it delivers dependable circuit protection while meeting internationally recognised safety standards.
Featuring both a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for rapid short-circuit interruption, the S203-D32 offers excellent protection for demanding electrical applications. Its D tripping characteristic makes it particularly suitable for circuits supplying equipment with high inrush currents, including motors, transformers and industrial machinery.
With a rated current of 32 A, a three-pole configuration and a 10 kA rated ultimate short-circuit breaking capacity at 400 V AC, the S203-D32 is ideal for protecting three-phase power distribution systems. Its compact DIN rail mounted design enables fast installation within switchboards, distribution boards and control panels.
Key Advantages
- Reliable overload and short-circuit protection for three-phase electrical systems.
- 32 A rated current for commercial and industrial power distribution.
- D-curve tripping characteristic for motors and inductive loads with high starting currents.
- 10 kA ultimate breaking capacity at 400 V AC.
- Current-limiting design helps minimise damage during fault conditions.
- Compact DIN rail mounting simplifies installation and maintenance.
Key Features
- ABB System pro M compact S200 series.
- Three-pole miniature circuit breaker.
- 32 A rated current.
- D tripping characteristic.
- 10 kA rated ultimate short-circuit breaking capacity (Icu).
- 7.5 kA rated service breaking capacity (Ics).
- Thermal overload and electromechanical short-circuit protection.
- Red ON and green OFF contact position indication.
- Compatible with ABB auxiliary contacts and accessories.
- Standard 35 mm DIN rail mounting.
Reliable Circuit Protection for Industrial Applications
The ABB S203-D32 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping to protect wiring, equipment and personnel. Its current-limiting design significantly reduces the energy released during fault conditions, minimising damage to connected equipment.
Its D-curve characteristic is designed for applications where high transient starting currents are expected, making it an excellent choice for motors, transformers, compressors and other inductive electrical loads found in industrial automation and commercial installations.
Typical Applications
- Industrial motors and motor control circuits.
- Transformers and inductive loads.
- Machine tools and production equipment.
- Commercial electrical distribution boards.
- Industrial control panels.
- HVAC, pumps and compressor systems.
Technical Specifications
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| Breaking Capacity | 6 kA | |
|---|---|---|
| Phase | Three Phase | |
| Current | 32 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | D curve | |
| Manufacturer | ABB | |
| Series | System pro M compact S200 | |
| Model | S203-D32 | |
| Product ID | 2CDS253001R0321 | |
| EAN | 4016779530958 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 3 | |
| Number of protected poles | 3 | |
| Rated current | 32 A | |
| Tripping characteristic | D curve | |
| Rated operational voltage | 400 V AC (IEC/EN 60898-1) | |
| Maximum operational voltage | 440 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated ultimate short-circuit breaking capacity (Icu) | 10 kA at 400 V AC | |
| Rated service short-circuit breaking capacity (Ics) | 7.5 kA at 400 V AC | |
| Rated impulse withstand voltage | 4 kV | |
| Protection rating | IP20 | |
| Protection in enclosure | IP40 | |
| Terminal type | Screw terminals | |
| Mounting type | 35 mm DIN rail | |
| Operating temperature | -25 to +55 °C | |
| Electrical endurance | 10,000 AC operating cycles | |
| Mechanical endurance | 20,000 operating cycles | |
| Dimensions (H × W × D) | approximately 88 × 52.5 × 69 mm | |
| Weight | approximately 0.375 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-D32 used for?
The ABB S203-D32 protects three-phase electrical circuits from overloads and short circuits, particularly where equipment has high starting currents.
What is the rated current of the S203-D32?
The circuit breaker has a 32 A rated current.
Why choose a D-curve circuit breaker?
D-curve circuit breakers are designed to tolerate higher inrush currents, making them suitable for motors, transformers and other inductive electrical equipment.
What is the breaking capacity of this circuit breaker?
The S203-D32 has a 10 kA rated ultimate breaking capacity (Icu) and a 7.5 kA rated service breaking capacity (Ics) at 400 V AC.
Where is the ABB S203-D32 typically installed?
It is designed for installation on a standard 35 mm DIN rail inside electrical distribution boards, switchboards and industrial control panels.
Trusted ABB Circuit Protection
ABB System pro M compact S200 miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and industrial automation engineers for dependable circuit protection and long-term reliability.
