ABB S203M-D32NA miniature circuit breaker from the System pro M compact S200M range featuring a 32 A rating, D curve characteristic, 3+NP configuration and 10 kA breaking capacity for industrial circuit protection.
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Why Choose the ABB S203M-D32NA Miniature Circuit Breaker?
The ABB S203M-D32NA is a high performance miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in commercial, industrial and demanding electrical installations. As part of the professional ABB System pro M compact S200M series, it delivers reliable current-limiting protection for distribution boards, switchboards and industrial control panels.
Featuring a D curve tripping characteristic, this miniature circuit breaker is designed for circuits with high inrush currents, making it ideal for motors, transformers, compressors and other inductive loads. Its advanced thermal and magnetic trip mechanisms provide dependable protection against overloads and fault currents while helping to reduce equipment damage.
With a rated current of 32 A, a 3+NP pole configuration and a rated breaking capacity of 10 kA, the S203M-D32NA is suitable for demanding three-phase electrical systems where a switched neutral is required. Its compact DIN rail mounting design allows quick installation inside modern electrical distribution boards and control cabinets.
Key Advantages
Professional ABB miniature circuit breaker for industrial circuit protection.
32 A rated current for demanding three-phase installations.
D curve characteristic designed for high inrush current loads.
3+NP configuration with switched neutral.
Current-limiting design helps protect cables and connected equipment.
Quick DIN rail installation within modular electrical systems.
Key Features
ABB System pro M compact S200M series.
32 A rated current.
D curve tripping characteristic.
3+NP pole configuration.
10 kA rated short-circuit breaking capacity.
Thermal overload protection.
Electromechanical short-circuit protection.
Compact DIN rail mounting.
Reliable Protection for High Inrush Electrical Loads
Miniature circuit breakers such as the ABB S203M-D32NA automatically disconnect electrical circuits during overload and short-circuit conditions, helping protect cables, switchgear and connected equipment while improving electrical safety.
The ABB S200M range combines compact dimensions with high breaking capacity and dependable performance. Its D curve characteristic makes this model particularly suitable for industrial machinery and equipment with high starting currents.
Typical Applications
Industrial motors and motor control circuits.
Transformers and inductive loads.
Industrial distribution boards.
Machine control panels.
Commercial switchboards.
OEM electrical equipment.
Technical Specifications
Current
32 A
Phase
Single Phase
Manufacturer
ABB
Series
System pro M compact S200M
Model
S203M-D32NA
Product type
Miniature circuit breaker
Product ID
2CDS273103R0321
EAN
4016779663441
Rated current
32 A
Tripping characteristic
D curve
Pole configuration
3+NP
Rated operational voltage
230 / 400 V AC
Rated insulation voltage
440 V
Frequency
50 / 60 Hz
Rated breaking capacity
10 kA
Current limiting class
3
Protection rating
IP20
Mounting type
DIN rail mounting
Dimensions (H × W × D)
approx. 88 × 70 × 69 mm
Weight
approx. 0.49 kg
Standards
IEC/EN 60898-1, IEC/EN 60947-2
HS Code
85362010
Country of Manufacture
Germany
Frequently Asked Questions
What is the ABB S203M-D32NA used for?
The ABB S203M-D32NA protects three-phase electrical circuits against overloads and short circuits, particularly where high inrush current equipment is installed.
What current rating does this circuit breaker have?
This miniature circuit breaker has a rated current of 32 A.
What does the D curve characteristic mean?
A D curve MCB is designed for circuits with high inrush currents, making it ideal for motors, transformers and other inductive loads.
What does the 3+NP configuration mean?
The S203M-D32NA provides three protected phase poles together with a switched neutral pole for three-phase electrical systems.
Where is this miniature circuit breaker installed?
It is designed for DIN rail installation inside electrical distribution boards, switchboards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers for dependable circuit protection, robust construction and long-term reliability.
Current
32 A
Phase
Single Phase
Manufacturer
ABB
Series
System pro M compact S200M
Model
S203M-D32NA
Product type
Miniature circuit breaker
Product ID
2CDS273103R0321
EAN
4016779663441
Rated current
32 A
Tripping characteristic
D curve
Pole configuration
3+NP
Rated operational voltage
230 / 400 V AC
Rated insulation voltage
440 V
Frequency
50 / 60 Hz
Rated breaking capacity
10 kA
Current limiting class
3
Protection rating
IP20
Mounting type
DIN rail mounting
Dimensions (H × W × D)
approx. 88 × 70 × 69 mm
Weight
approx. 0.49 kg
Standards
IEC/EN 60898-1, IEC/EN 60947-2
HS Code
85362010
Country of Manufacture
Germany
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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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...