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ABB S203MT-Z63H01 MCB – S200M – 3P – Z – 63A
ABB S203MT-Z63H01 three-pole 63 A miniature circuit breaker with Z tripping characteristic and 10 kA short circuit capacity for railway, traction and industrial electrical protection.
Why Choose the ABB S203MT-Z63H01 Miniature Circuit Breaker?
The ABB S203MT-Z63H01 is a robust three-pole miniature circuit breaker (MCB) designed for demanding railway, traction and industrial electrical applications. As part of the reliable ABB S200MT series, it provides dependable overload and short circuit protection for electrical circuits where fast fault disconnection and long-term operational reliability are essential.
This MCB features a Z tripping characteristic, providing highly sensitive magnetic tripping for the protection of electronic equipment, control circuits and semiconductor-based devices. Its current limiting design helps reduce fault energy, protecting downstream components and improving overall system safety.
With a 63 A rated current, three-pole configuration and 10 kA rated short circuit capacity, the S203MT-Z63H01 is suitable for DIN rail installation in electrical distribution boards, control panels and specialist transportation systems.
Key Advantages
- Three-pole miniature circuit breaker for industrial and railway applications.
- 63 A rated current with sensitive Z tripping characteristic.
- 10 kA short circuit capacity for reliable fault protection.
- Designed for rolling stock, traction and demanding industrial systems.
- Current limiting design helps reduce damage during short circuit events.
- Compatible with the ABB System pro M Compact accessory range.
Key Features
- ABB S200MT miniature circuit breaker series.
- 63 A rated current.
- Three protected poles.
- Z tripping characteristic for sensitive circuit protection.
- 10 kA rated short circuit capacity.
- Thermal magnetic protection against overloads and short circuits.
- Suitable for 50 / 60 Hz electrical systems.
- DIN rail mounting with secure screw terminals.
Reliable Protection for Sensitive Electrical Circuits
The ABB S203MT-Z63H01 protects electrical installations using thermal and electromagnetic tripping mechanisms. The thermal element responds to overload conditions, while the electromagnetic trip provides rapid disconnection during short circuit faults.
Its Z curve characteristic is particularly useful where sensitive components require fast protection. This makes the device suitable for control systems, electronic loads and specialist industrial equipment where excessive fault energy could damage connected components.
Typical Applications
- Railway and rolling stock electrical systems.
- Traction power distribution.
- Industrial control panels.
- Sensitive electronic and semiconductor circuits.
- Automation and machine building.
- Commercial and industrial electrical distribution.
Technical Specifications
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| Current | 63 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | Z curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S203MT-Z63H01 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 63 A | |
| Number of poles | 3 | |
| Tripping characteristic | Z | |
| Rated operational voltage | 400 V AC | |
| Frequency | 50 / 60 Hz | |
| Rated short circuit capacity | 10 kA | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail | |
| Terminal type | Screw terminals | |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm | |
| Weight | Approx. 0.375 kg |
Frequently Asked Questions
What is the ABB S203MT-Z63H01 used for?
It is used to protect three-phase electrical circuits against overloads and short circuits, especially in railway, traction and industrial control applications.
What does the Z tripping characteristic mean?
The Z characteristic provides highly sensitive magnetic tripping, making it suitable for protecting electronic equipment, control circuits and semiconductor devices.
How many poles does this circuit breaker have?
The ABB S203MT-Z63H01 is a three-pole miniature circuit breaker.
What is the rated current of this MCB?
This miniature circuit breaker has a rated current of 63 A.
Where can the S203MT-Z63H01 be installed?
It is designed for mounting on a standard 35 mm DIN rail inside electrical distribution boards, control panels and suitable equipment enclosures.
Trusted for Industrial and Railway Protection
ABB S200MT miniature circuit breakers are trusted by electrical engineers, panel builders and railway manufacturers worldwide for dependable circuit protection, compact installation and long service life in demanding environments.
