ALSTOM MCGG22L1CB0753E Medium Voltage Circuit Breaker
This circuit breaker serves as critical protection equipment for medium voltage power distribution networks. Designed for industrial and commercial power systems, it safeguards electrical infrastructure against overloads and short circuits while maintaining operational continuity.
| Technical Specification | Performance Data |
|---|---|
| Rated Current | 40 kA |
| Rated Voltage | 12 kV |
| Operating Pressure | 6-10 bar |
| Insulation Material | Epoxy Resin |
| Disconnection Time | 30 ms |
| Mechanical Durability | 20,000 operations |
| Protection Class | Type I |

Field Applications & Compatibility
We’ve deployed this model across various industrial environments including power plants, chemical processing facilities, and steel mills. Its epoxy resin insulation performs reliably in high-humidity environments – personally, I found it particularly effective in coastal installations where salt corrosion is a concern.
This breaker integrates seamlessly with ALSTOM’s Masterline switchgear series and works effectively with their protection relays like the REF542plus. Our inventory includes compatible spare parts such as:
- ALSTOM MCGG22L1CB0753E actuator modules
- Contact assemblies (Type C354-12)
- Spring charging motor units (400V AC)
Our Support Package
All units come with our standard 12-month warranty covering manufacturing defects. Our technical team provides:
- Pre-installation compatibility checks
- On-site testing support (available in 6 countries)
- Emergency replacement service within 72 hours
For current pricing and lead times, contact Linda directly via:
- WhatsApp: +86 190-6659-1275
- Email: abbdcs36@gmail.com
- Location: ABB-WORLD, Tsim Sha Tsui, Hong Kong
Image: MCGG22L1CB0753E installation in a compact substation (above). Our engineers typically complete installations within 4-6 hours depending on site conditions.














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