ZN85-40.5 Indoor Vacuum Circuit Breaker
Vacuum Circuit Breakers · Drawing-confirmed project supply
KOVYEL ZN85-40.5 indoor vacuum circuit breakers provide 40.5 kV fault interruption for high-voltage switchgear and substation feeders.
Selection begins with the actual project interface.
KOVYEL ZN85-40.5 indoor vacuum circuit breakers provide 40.5 kV fault interruption for high-voltage switchgear and substation feeders.
KOVYEL confirms final selection against the approved drawing, interface dimensions, service conditions and purchase specification before quotation and supply. Catalogue references define the product family; the approved project documents remain the controlling basis.
Review the available construction and product views.
Images show representative configurations. Final construction, marking and packing are confirmed against the approved project documents.
The information buyers need before model confirmation.
Verified catalogue data is shown below. Dimensions, ratings and interfaces that depend on the project remain subject to the approved drawing and purchase specification.
| Product | ZN85-40.5 Indoor Vacuum Circuit Breaker |
|---|---|
| Category | Vacuum Circuit Breakers |
| Representative range / models | ZN85-40.5, 1250-2000 A |
| Standards / reference basis | Catalogue ratings and project requirements confirmed by KOVYEL before supply |
| Typical applications | Distribution feeder protection; Substation switching and fault interruption; Utility and industrial medium-voltage systems |
| Rated voltage | 40.5 kV |
| Rated current | 1250, 1600 or 2000 A |
| Short-circuit breaking current | 25 or 31.5 kA |
| Peak/making current | 63 or 80 kA |
| Short-time current duration | 4 s |
| Opening time | Less than 80 ms |
| Mechanical endurance | 10,000 operations |
| Rated breaking operations | 20 |
| Final dimensions and ratings | Confirmed against the approved drawing, equipment interface and project specification |
| Supply basis | Project-specific RFQ, coordinated documentation and export packing |
Unverified dimensions or performance ratings are not published as fixed values. Submit the controlling drawing or requirement schedule for final confirmation.
Where this product family is typically used.
Distribution feeder protection
40.5 kV indoor service
Substation switching and fault interruption
25 or 31.5 kA breaking rating
Utility and industrial medium-voltage systems
10,000-operation endurance
Send these details for an accurate offer.
A complete RFQ helps KOVYEL confirm the product configuration, production basis, documentation, export packing and delivery proposal without repeated clarification.
Have a BOQ, drawing or equipment schedule?
Send the technical documents with the form below. KOVYEL will review the product interface, required standard, quantity and destination before preparing the quotation.
TECHNICAL PROCUREMENT PATH