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Vacuum Interrupter & Pole Design
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Vacuum Interrupter
The vacuum interrupter is the core switching element inside the pole, providing current switching and fault interruption in a sealed vacuum environment.
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Insulated Pole Design
Vacuum interrupters and primary conductive parts are supported and insulated by separate insulating components for reliable medium-voltage insulation and mechanical support.
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Embedded Pole Design
Vacuum interrupters and primary conductive parts are encapsulated in epoxy resin as an integrated pole structure, providing enhanced insulation reliability and environmental resistance.
Side-Mounted Installation
Side-Mounted Installation
Designed with a lateral mounting arrangement, with left- or right-hand configurations available to suit different switchgear layouts. The operating mechanism and primary circuit are arranged for compact switchgear integration.
Mounting points and primary connection interfaces can be configured according to switchgear layout and project requirements.
Technical Specifications
| Parameter | Specification | ||
| Rated Voltage | 12 kV | 17.5 kV | 24 kV |
| Rated Frequency | 50 / 60 Hz | 50 / 60 Hz | 50 / 60 Hz |
| Rated Current | Up to 3150 A | Up to 3150 A | Up to 2500 A |
| Rated Short-Circuit Breaking Current | Up to 40 kA | Up to 40 kA | Up to 31.5 kA |
| Rated Short-Time Withstand Current | Up to 40 kA | Up to 40 kA | Up to 31.5 kA |
| Power-Frequency Withstand Voltage | 28 kV | 38 kV | 50 kV |
| Lightning Impulse Withstand Voltage | 75 kV | 95 kV | 125 kV |
| Operating Sequence | O – 0.3 s – CO – 15 s – CO | ||
| Mechanical Endurance | 10,000 operations | ||
| Installation | Fixed / Withdrawable | ||
| Applicable Standard | IEC 62271-100 | ||
Note: Available ratings depend on voltage class, pole design, installation configuration and product series.
Standards, Testing & Documentation
IEC-Oriented Design
Designed with reference to IEC 62271-100 and applicable project requirements.
Factory Routine Testing
Electrical, mechanical, operating and applicable interlocking checks are carried out before shipment according to product configuration.
Project Documentation
Technical datasheets, outline drawings, wiring diagrams and test records can be provided for project review.
Discuss Your Side-Mounted Vacuum Circuit Breaker Requirements
Share your system voltage, rated current, breaking capacity, installation requirements and switchgear interface requirements with our engineering team.
MV & LV Equipment Manufacturer · Wenzhou, China
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