ABB S203M-K32NA miniature circuit breaker from the System pro M compact S200M series, rated at 32 A with K curve tripping characteristic and 3P+N configuration for industrial circuit protection.
£216.90
The ABB S203M-K32NA is a high-performance miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. As part of the trusted ABB System pro M compact S200M series, this device provides dependable circuit protection for residential, commercial and industrial low-voltage installations.
This 32 amp K-curve circuit breaker combines delayed thermal overload protection with electromechanical short-circuit tripping, helping to safeguard cables, motors, transformers and industrial equipment. Its compact DIN rail format and current-limiting design support safe, efficient installation within modern electrical panels.
With a rated current of 32 A and a 3P+N configuration, the S203M-K32NA is suitable for three-phase circuits requiring neutral switching. The K tripping characteristic is ideal for circuits with higher inrush currents, including inductive loads, motors, transformers and control equipment.
The ABB S203M-K32NA automatically disconnects electrical circuits during overload or short-circuit conditions, helping protect wiring, motors and connected equipment from damage. Its current-limiting design reduces fault energy and improves overall system protection.
The K curve characteristic is specifically designed for applications with elevated inrush currents, making this miniature circuit breaker ideal for motor circuits, transformers, solenoids and industrial automation equipment.
| Current | 32 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-K32NA |
| Manufacturer part number | 2CDS273103R0537 |
| EAN | 4016779659574 |
| Product type | Miniature circuit breaker |
| Rated current | 32 A |
| Tripping characteristic | K curve |
| Number of poles | 3P+N |
| Rated operational voltage | 400 V AC |
| Maximum operational voltage | 440 V AC |
| Rated breaking capacity | 10 kA at 230/400 V AC |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.5 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203M-K32NA protects three-phase electrical circuits against overloads and short circuits, particularly those supplying motors and inductive equipment.
This miniature circuit breaker has a rated current of 32 A.
The K curve allows higher inrush currents before tripping, making it suitable for motors, transformers and other inductive loads.
The device features a 3P+N configuration for three-phase installations with a switched neutral.
It is designed for DIN rail installation inside electrical distribution boards, switchboards and industrial control panels.
ABB System pro M compact miniature circuit breakers are trusted worldwide by panel builders, electrical contractors and industrial engineers for dependable circuit protection 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...