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ABB S203-Z8 MCB – S200 – 3P – Z – 8A
ABB S203-Z8 three-pole miniature circuit breaker with an 8 A current rating and Z tripping characteristic for protecting sensitive industrial and electronic circuits.
£95.62
Why Choose the ABB S203-Z8 Miniature Circuit Breaker?
The ABB S203-Z8 is a premium three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S200 series. Featuring a 8 A current rating and a Z tripping characteristic, it is specifically engineered to protect highly sensitive electrical and electronic circuits requiring exceptionally fast magnetic tripping. It delivers dependable overload and short circuit protection for industrial automation, instrumentation, control panels and OEM machinery.
Manufactured to ABB's renowned engineering standards, the S203-Z8 combines thermal overload protection with rapid electromagnetic short circuit protection. Its compact DIN rail mounted design enables straightforward installation within distribution boards, switchgear and industrial control panels while providing dependable long-term performance.
Complying with internationally recognised electrical standards, the ABB S203-Z8 is widely specified by panel builders, machine manufacturers and automation engineers requiring reliable protection for low inrush current circuits and sensitive electronic equipment.
Key Advantages
- Three-pole miniature circuit breaker for three-phase electrical systems.
- 8 A rated current suitable for sensitive industrial circuits.
- Z tripping characteristic for exceptionally fast fault clearance.
- Reliable overload and short circuit protection.
- Compact DIN rail mounting for quick installation.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB System pro M Compact S200 series.
- Model: S203-Z8.
- 8 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-Z8 is designed to disconnect electrical circuits rapidly during overloads and short circuits. Its Z characteristic provides exceptionally fast magnetic tripping, making it ideal for PLC systems, instrumentation, electronic control equipment and other sensitive circuits where rapid fault clearance is essential.
As part of ABB's proven System pro M Compact range, the S203-Z8 delivers dependable performance, straightforward installation and compatibility with a comprehensive range of auxiliary contacts, shunt trips and signalling accessories for complete industrial electrical solutions.
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 | 8 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-Z8 | |
| Product ID | 2CDS253001R0408 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 8 A | |
| Number of poles | 3 | |
| Tripping characteristic | Z | |
| Rated operational voltage | 230/400 V AC | |
| Rated insulation voltage | 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. 0.34 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-Z8 used for?
The ABB S203-Z8 protects sensitive three-phase electrical circuits against overloads and short circuits in industrial automation and commercial installations.
What does the Z tripping characteristic mean?
The Z curve provides very fast magnetic tripping, making it ideal for protecting sensitive electronic equipment and low inrush current circuits.
How many poles does the S203-Z8 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-Z8 clips directly onto a standard DIN rail within switchboards, distribution boards and industrial control panels.
Which standards does the ABB S203-Z8 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, machine builders and panel manufacturers for dependable protection of sensitive commercial and industrial electrical systems.
