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ABB S203M-Z0.5 MCB – S200M – 3P – Z – 0.5A
ABB S203M-Z0.5 miniature circuit breaker from the System pro M compact S200M range featuring 3-pole protection, Z curve tripping characteristic, 0.5 A rating and up to 10 kA breaking capacity.
£82.96
Why Choose the ABB S203M-Z0.5 Miniature Circuit Breaker?
The ABB S203M-Z0.5 is a high-performance miniature circuit breaker (MCB) from the ABB System pro M compact S200M range, designed to provide reliable overload and short-circuit protection in residential, commercial and industrial electrical installations. Featuring a 3-pole configuration, Z curve tripping characteristic and a 0.5 A rated current, it is suitable for sensitive low-current circuits requiring rapid magnetic tripping.
The S200M range uses current-limiting technology with a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short-circuit protection. This helps safeguard wiring, equipment and electrical systems from damaging fault currents.
With its compact DIN rail mounting format and robust ABB construction, the S203M-Z0.5 is ideal for distribution boards, control panels and switchgear assemblies where precise three-pole circuit protection is required.
Key Advantages
- Reliable miniature circuit breaker for overload and short-circuit protection.
- 3-pole configuration for three-phase circuit protection.
- 0.5 A rated current for sensitive low-current circuits.
- Z curve characteristic for rapid magnetic tripping.
- Part of the ABB System pro M compact S200M range.
- DIN rail mounting for fast installation in electrical panels.
Key Features
- ABB S200M miniature circuit breaker series.
- 3-pole MCB configuration.
- Z curve tripping characteristic.
- 0.5 A rated current.
- Current-limiting Class 3 design.
- Thermal overload and electromechanical short-circuit protection.
- Compatible with ABB System pro M compact accessories.
- Suitable for DIN rail installation in distribution boards and control panels.
Reliable Protection for Sensitive Three-Phase Circuits
Miniature circuit breakers such as the ABB S203M-Z0.5 automatically disconnect electrical circuits when overload or short-circuit conditions occur. This helps protect cables, connected devices and panel equipment from excessive current and potential damage.
Its Z curve characteristic provides rapid magnetic tripping at comparatively low fault currents, making it suitable for sensitive control circuits, electronic equipment, instrumentation and selected low-current protection applications. The 3-pole design allows simultaneous protection and switching across three conductors in three-phase installations.
Typical Applications
- Sensitive three-phase control circuits.
- Industrial distribution boards.
- Machine building and automation panels.
- Electronic equipment and instrumentation protection.
- Commercial and industrial switchgear assemblies.
- Electrical installations requiring compact DIN rail protection.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 0.5 A | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200M | |
| Model | S203M-Z0.5 | |
| Product type | Miniature circuit breaker | |
| Product ID | 2CDS273001R0158 | |
| EAN | 4016779601023 | |
| Number of poles | 3P | |
| Number of protected poles | 3 | |
| Tripping characteristic | Z curve | |
| Rated current | 0.5 A | |
| Rated operational voltage | 400 V AC | |
| Rated insulation voltage | 440 V | |
| Rated frequency | 50 / 60 Hz | |
| Breaking capacity | up to 10 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail mounting | |
| Dimensions (W × H × D) | approx. 52.5 × 88 × 69 mm | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203M-Z0.5 used for?
The ABB S203M-Z0.5 protects electrical circuits against overloads and short circuits in distribution boards, control panels and industrial switchgear.
What current rating does the S203M-Z0.5 have?
The breaker has a rated current of 0.5 A.
What does the Z curve characteristic mean?
Z curve breakers provide rapid magnetic tripping at relatively low fault currents, making them suitable for sensitive electronic equipment, instrumentation and control circuits.
How many poles does the ABB S203M-Z0.5 have?
The S203M-Z0.5 is a 3-pole miniature circuit breaker.
Where is this breaker typically installed?
It is designed for DIN rail installation inside distribution boards, industrial control panels and electrical switchgear assemblies.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are widely used by electricians, panel builders and electrical engineers for reliable circuit protection in residential, commercial and industrial installations.
