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ABB S203-Z3 MCB – S200 – 3P – Z – 3A
ABB S203-Z3 three-pole miniature circuit breaker with a 3 A current rating and Z tripping characteristic for protecting sensitive electrical and electronic circuits.
£95.62
Why Choose the ABB S203-Z3 Miniature Circuit Breaker?
The ABB S203-Z3 is a premium three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 series. With a 3 A current rating and a Z tripping characteristic, it is specifically engineered to protect sensitive electrical and electronic circuits where rapid magnetic tripping is required. It provides dependable overload and short circuit protection for industrial automation, control panels, instrumentation and OEM machinery.
Manufactured to ABB's renowned quality standards, the S203-Z3 combines thermal overload protection with fast electromagnetic short circuit protection. Its compact DIN rail mounted design enables straightforward installation within electrical distribution boards and industrial control panels while ensuring reliable long-term performance.
Complying with internationally recognised standards, the ABB S203-Z3 is widely specified by machine builders, panel manufacturers and industrial engineers requiring reliable protection for low-current, high-sensitivity electrical circuits.
Key Advantages
- Three-pole miniature circuit breaker for three-phase installations.
- 3 A rated current for sensitive electrical circuits.
- Z tripping characteristic for rapid fault clearance.
- Reliable overload and short circuit protection.
- Compact DIN rail mounting for fast installation.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB System pro M Compact S200 series.
- Model: S203-Z3.
- 3 A rated current.
- Three protected poles (3P).
- Z curve tripping characteristic.
- Thermal and electromagnetic trip mechanisms.
- 6 kA rated breaking capacity to IEC/EN 60898-1.
- DIN rail mounting for distribution boards and control panels.
Reliable Protection for Sensitive Electronic Circuits
The ABB S203-Z3 is designed to disconnect electrical circuits rapidly during overloads and short circuits. Its Z characteristic makes it particularly suitable for PLC systems, instrumentation, electronic control equipment and other applications where fast fault response is essential.
As part of ABB's proven System pro M Compact range, the S203-Z3 delivers excellent reliability, straightforward installation and compatibility with a comprehensive range of auxiliary contacts, shunt trips and signalling accessories.
Typical Applications
- PLC and automation systems.
- Industrial control panels.
- Instrumentation circuits.
- OEM machinery.
- Sensitive electronic equipment.
- Commercial and industrial electrical installations.
Technical Specifications
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| Certification | UL 1077 | |
|---|---|---|
| Phase | Three Phase | |
| Current | 3 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S203-Z3 | |
| Product ID | 2CDS253001R0318 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 3 A | |
| Number of poles | 3 | |
| Tripping characteristic | Z | |
| Rated operational voltage | Up to 440 V AC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 6 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| Dimensions (H × W × D) | Approx. 88 × 52.5 × 69 mm | |
| Weight | Approx. 0.38 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-Z3 used for?
The ABB S203-Z3 protects sensitive three-phase electrical circuits against overloads and short circuits in industrial, commercial and OEM applications.
What does the Z tripping characteristic mean?
The Z curve provides very fast magnetic tripping, making it suitable for sensitive electronic equipment and low inrush current circuits.
How many poles does the S203-Z3 have?
This model is a three-pole (3P) miniature circuit breaker designed for three-phase electrical systems.
How is the circuit breaker installed?
The ABB S203-Z3 clips directly onto a standard DIN rail within distribution boards, switchgear and industrial control panels.
Which standards does the ABB S203-Z3 comply with?
The circuit breaker complies with IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077 standards for dependable overcurrent protection.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted worldwide by electrical engineers, OEM machine builders and panel manufacturers for delivering dependable circuit protection across commercial and industrial applications.
