ABB S203M-Z63 three-pole 63 A miniature circuit breaker with Z tripping characteristic and 10 kA breaking capacity for industrial and commercial electrical protection.
£213.87
The ABB S203M-Z63 is a high performance three-pole miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in industrial, commercial and panel building applications. As part of the ABB S200M System pro M compact series, it delivers reliable circuit protection in a compact DIN rail mounted format.
This MCB features a Z tripping characteristic, making it ideal for highly sensitive electrical and electronic circuits where rapid magnetic tripping is required. It is particularly suited to PLC systems, instrumentation, electronic control circuits and automation equipment with low inrush currents. Its current limiting design helps reduce fault energy, protecting connected equipment and wiring from electrical faults.
With a 63 A rated current, three-pole configuration and 10 kA short-circuit breaking capacity, the ABB S203M-Z63 provides dependable protection for three-phase distribution systems, industrial control panels and sensitive automation installations.
The ABB S203M-Z63 automatically disconnects electrical circuits during overload and short-circuit conditions, helping protect wiring, control equipment and connected devices from damage. Its advanced thermal and magnetic tripping mechanisms provide dependable protection while maintaining excellent operational reliability.
The Z characteristic is specifically intended for highly sensitive electronic circuits where fast magnetic tripping is required. This makes the S203M-Z63 particularly suitable for automation equipment, PLCs, instrumentation and precision control systems.
| Current | 63 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | S200M |
| Model | S203M-Z63 |
| Product ID | 2CDS273001R0608 |
| EAN | 4016779601382 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 63 A |
| Number of poles | 3P |
| Tripping characteristic | Z |
| Rated operational voltage | 230 / 400 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit breaking capacity | 10 kA |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm |
| Weight | approx. 0.375 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203M-Z63 protects three-phase electrical circuits against overloads and short circuits, particularly where sensitive electronic equipment requires rapid fault protection.
A Z characteristic MCB is designed for protecting sensitive electronic equipment and control circuits with low inrush currents by providing rapid magnetic tripping.
This model is a three-pole (3P) miniature circuit breaker suitable for three-phase electrical systems.
The ABB S203M-Z63 has a 63 A rated current.
The breaker is designed for installation onto a standard DIN rail inside electrical distribution boards and industrial control panels.
ABB S200M miniature circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for delivering reliable circuit protection, excellent build quality and dependable 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...