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ABB S203MT-Z20H10 MCB – S200M – 3P – Z – 20A
ABB S203MT-Z20H10 miniature circuit breaker, a 3-pole 20 A Z curve MCB with 10 kA breaking capacity for sensitive circuit protection in industrial, commercial and transport electrical systems.
Why Choose the ABB S203MT-Z20H10 Miniature Circuit Breaker?
The ABB S203MT-Z20H10 is a dependable miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits in demanding industrial, commercial and transport applications. As part of the ABB S200MT miniature circuit breaker range, this 3-pole device is suited to installations requiring reliable circuit protection and fast disconnection under fault conditions.
With a 20 A rated current and Z-type tripping characteristic, the S203MT-Z20H10 provides sensitive magnetic tripping for circuits where rapid short-circuit protection is required. This makes it suitable for control circuits, signalling equipment and specialist electrical systems where sensitive fault response is important.
The ABB S203MT-Z20H10 features a compact DIN rail mounting format, robust current-limiting performance and a 10 kA rated short-circuit capacity. Its modular 3-pole design supports straightforward installation inside electrical cabinets, distribution boards and control panels.
Key Advantages
- Compact 3-pole miniature circuit breaker for reliable circuit protection.
- 20 A rated current suitable for three-phase electrical circuits.
- Z-type tripping characteristic for sensitive short-circuit protection.
- 10 kA breaking capacity for dependable fault interruption.
- Current-limiting design helps reduce stress on downstream equipment.
- Designed for demanding industrial, commercial and transport electrical systems.
Key Features
- ABB S200MT miniature circuit breaker series.
- 3-pole MCB configuration.
- 20 A rated current.
- Z curve tripping characteristic.
- 10 kA rated short-circuit capacity.
- Thermal overload protection.
- Electromagnetic short-circuit protection.
- Compact DIN rail mounting design.
Sensitive Protection for Professional Electrical Systems
Miniature circuit breakers such as the ABB S203MT-Z20H10 automatically disconnect electrical circuits when overload or short-circuit faults occur. This helps protect cables, connected loads and downstream components from excessive current and fault energy.
The Z curve characteristic provides fast magnetic tripping sensitivity, making this MCB suitable for circuits that require rapid fault disconnection. Its 3-pole configuration allows simultaneous protection and isolation of three-phase circuits in control panels, distribution boards and specialist electrical installations.
Typical Applications
- Industrial control panels and automation systems.
- Three-phase distribution circuits.
- Control and signalling circuits.
- Railway and transport electrical systems.
- Commercial electrical installations.
- OEM machinery and equipment panels.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S203MT-Z20H10 | |
| MPN | 2CDV273006R0488 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 3P | |
| Rated current | 20 A | |
| Tripping characteristic | Z curve | |
| Rated short-circuit capacity | 10 kA | |
| Rated operational voltage | up to 440 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Mounting type | DIN rail mounting | |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm | |
| Product range | System pro M compact |
Frequently Asked Questions
What is the ABB S203MT-Z20H10 used for?
The ABB S203MT-Z20H10 is used to protect three-phase electrical circuits against overloads and short circuits.
What current rating does this MCB have?
This miniature circuit breaker has a rated current of 20 A.
What does the Z curve characteristic mean?
The Z curve provides sensitive short-circuit tripping, making the MCB suitable for circuits requiring fast magnetic protection.
How many poles does the S203MT-Z20H10 have?
The ABB S203MT-Z20H10 is a 3-pole miniature circuit breaker.
Where is this circuit breaker typically installed?
It is typically installed on DIN rail inside electrical cabinets, control panels and distribution boards.
Trusted by Electrical Engineers Worldwide
ABB S200MT miniature circuit breakers are used by panel builders, electrical engineers and transport specialists to deliver dependable circuit protection in demanding industrial, commercial and railway applications.
