ABB S203M-Z25 three-pole 25 A miniature circuit breaker with Z tripping characteristic and 10 kA breaking capacity for sensitive industrial, commercial and panel building applications.
£150.84
The ABB S203M-Z25 is a high quality three-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in industrial, commercial and panel building applications. As part of the ABB S200M System pro M compact series, it provides dependable protection in a compact DIN rail mounted format.
This MCB features a Z tripping characteristic, making it suitable for highly sensitive circuits with low inrush currents, including electronic equipment, control circuits, PLC systems and instrumentation. Its current limiting design helps reduce fault energy and supports safer operation of connected equipment and wiring.
With a 25 A rated current, three-pole configuration and 10 kA breaking capacity, the ABB S203M-Z25 is ideal for three-phase electrical distribution and sensitive industrial control applications where fast disconnection and reliable circuit protection are essential.
Miniature circuit breakers such as the ABB S203M-Z25 automatically disconnect the electrical supply when overload or short circuit conditions occur. This helps protect cables, devices and connected equipment from damage caused by excessive current.
The Z curve provides rapid magnetic tripping, making this breaker particularly useful for circuits where sensitive electronic components must be protected from fault currents. This makes it a strong choice for control panels, automation systems and instrumentation circuits.
| Current | 25 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | S200M |
| Model | S203M-Z25 |
| Product ID | 2CDS273001R0518 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 25 A |
| Number of poles | 3P |
| Tripping characteristic | Z |
| Rated operational voltage | 230 / 400 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit breaking capacity | 10 kA |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 |
| Mounting type | DIN rail |
| Protection rating | IP20 |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm |
| Weight | approx. 0.375 kg |
| EAN | 4016779601306 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203M-Z25 is used to protect three-phase electrical circuits against overloads and short circuits, especially in applications with sensitive electronic equipment.
The Z characteristic provides very fast magnetic tripping and is designed for protecting sensitive electronic devices and control circuits with low inrush currents.
The ABB S203M-Z25 has a 25 A rated current.
This model is a three-pole (3P) miniature circuit breaker for three-phase electrical systems.
The ABB S203M-Z25 provides a 10 kA short-circuit breaking capacity at 230 / 400 V AC.
ABB S200M miniature circuit breakers are trusted by contractors, panel builders and industrial engineers for reliable protection, compact installation and consistent performance in demanding electrical systems.
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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...