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2CDS273061R0518 ABB S203M-Z25UC 25 A 3-Pole Type Z Miniature Circuit Breaker 10 kA
ABB S203M-Z25UC is a 25 A three-pole Type Z universal-current miniature circuit breaker with 10 kA short-circuit breaking capacity for sensitive AC and DC circuit protection.
£319.50
Why Choose the ABB S203M-Z25UC Miniature Circuit Breaker?
The ABB S203M-Z25UC is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in AC and DC electrical systems. As part of the ABB S200M UC System pro M compact® series, it combines universal-current capability with sensitive Type Z protection for industrial automation, control, traction and transportation applications.
This miniature circuit breaker features a Type Z tripping characteristic and a rated current of 25 A. The Z characteristic provides sensitive magnetic tripping, making the S203M-Z25UC particularly suitable for electronic equipment, control circuits and other loads requiring rapid protection against comparatively low overcurrent levels.
With three poles and a rated short-circuit capacity of 10 kA, the S203M-Z25UC provides dependable protection in compact DIN-rail installations. Its universal-current construction supports flexible application in AC and DC systems, while ABB order code 2CDS273061R0518 identifies this specific 25 A Type Z configuration.
Key Advantages
- Universal-current MCB suitable for AC and DC applications.
- 25 A rated current for electronic, control and industrial circuits.
- Three-pole configuration for simultaneous protection of three conductors.
- Type Z tripping characteristic for sensitive overcurrent protection.
- 10 kA short-circuit breaking capacity for robust fault protection.
- Compact DIN-rail mounting for electrical distribution and control panels.
- Part of ABB's System pro M compact® modular protection platform.
Key Features
- ABB S200M UC series miniature circuit breaker.
- 25 A rated current.
- 3-pole switching and protection configuration.
- Type Z tripping characteristic.
- 10 kA short-circuit breaking capacity.
- Universal-current design for AC and DC circuit protection.
- Thermal and magnetic protection against overloads and short circuits.
- Suitable for sensitive electronic, control and automation circuits.
- Designed for standard DIN-rail installation.
Sensitive AC and DC Circuit Protection
Miniature circuit breakers such as the ABB S203M-Z25UC automatically interrupt a circuit when excessive current occurs because of an overload or short circuit. This helps protect conductors, electronic equipment and electrical installations against thermal and electrical damage associated with abnormal current conditions.
The Type Z characteristic provides a sensitive magnetic response and is particularly useful for electronic devices, control equipment and other circuits requiring protection at relatively low fault-current multiples. Combined with the S200M UC series' AC/DC capability, this makes the S203M-Z25UC well suited to specialised industrial, automation and transportation electrical systems.
Typical Applications
- Industrial AC and DC distribution systems.
- Electronic equipment and sensitive electrical loads.
- Industrial automation and control panels.
- Control and auxiliary circuits.
- Railway and transportation electrical systems.
- DC power distribution and signalling circuits.
Technical Specifications
| Series | S200M UC / System pro M compact® |
|---|---|
| ABB order code | 2CDS273061R0518 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 25 A |
| Number of poles | 3 |
| Protected poles | 3 |
| Tripping characteristic | Type Z |
| Protection function | Overload and short-circuit protection |
| Short-circuit breaking capacity | 10 kA |
| Current type | AC / DC universal current |
| Mounting type | DIN rail |
| Product group | DC / Traction MCB |
Frequently Asked Questions
What is the ABB S203M-Z25UC used for?
The S203M-Z25UC is a three-pole miniature circuit breaker designed to protect AC and DC electrical circuits against overload and short-circuit currents, particularly where sensitive protection is required.
What is the rated current of the S203M-Z25UC?
The ABB S203M-Z25UC has a rated current of 25 A, making it suitable for electronic, control and industrial circuits.
What tripping characteristic does this circuit breaker have?
The S203M-Z25UC uses a Type Z tripping characteristic, providing sensitive magnetic protection for electronic equipment and circuits with relatively low permissible overcurrents.
Can the ABB S203M-Z25UC be used on DC circuits?
Yes. The S200M UC series is designed for AC and DC applications, subject to the applicable voltage, polarity and installation requirements.
What is the breaking capacity of the S203M-Z25UC?
The S203M-Z25UC has a specified short-circuit breaking capacity of 10 kA, providing robust fault protection for industrial and specialised electrical systems.
Trusted ABB Circuit Protection
ABB System pro M compact® miniature circuit breakers provide modular and dependable circuit protection for industrial, automation, transportation and specialised AC/DC electrical installations.
