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Reliable power distribution requires more than simple fault interruption. Utilities today need switching equipment that can identify temporary faults, restore power automatically, and reduce unnecessary service interruptions. The Recloser Circuit Breaker 12KV is designed specifically for medium-voltage overhead distribution networks, combining vacuum interruption technology with intelligent automatic reclosing control to improve grid reliability and operational efficiency.
Unlike conventional circuit breakers that require manual intervention after a fault, this intelligent recloser automatically performs programmed open-close sequences according to preset protection logic. Temporary faults caused by lightning, tree contact, or transient insulation breakdown can be cleared quickly, while permanent faults are isolated to protect downstream equipment and improve overall system stability.
For different distribution environments, our product portfolio provides complementary solutions. The 12KV Pole Mounted Circuit Breaker is suitable for standard overhead feeder protection, while the 12KV Outdoor Vacuum Circuit Breaker is optimized for demanding outdoor environments. For compact installations requiring minimal maintenance, the Pole Mounted Vacuum Circuit Breaker provides dependable vacuum switching performance. In addition, the Outdoor Pole Top Circuit Breaker offers a flexible solution for upgrading existing distribution networks.
The Recloser Circuit Breaker 12KV adopts a sealed vacuum interrupter combined with a microprocessor-based control system. The vacuum chamber provides rapid arc extinction, low contact erosion, and long service life without the use of oil or SF₆ gas. This makes the equipment safer, cleaner, and more suitable for modern smart grid applications.
The integrated controller supports adjustable protection parameters, including phase overcurrent, earth fault protection, sensitive earth fault detection, and multiple reclosing sequences. Engineers can configure operation curves according to feeder characteristics, improving coordination between upstream substations, downstream switches, and distributed energy resources.
A weather-resistant stainless steel enclosure with IP65 protection safeguards internal components from rain, dust, salt spray, and temperature variations. The compact pole-mounted structure simplifies transportation, installation, and maintenance, making it ideal for rural networks, industrial feeders, renewable energy collection systems, and utility distribution automation projects.
| Parameter | Specification |
|---|---|
| Rated Voltage | 12 kV |
| Rated Frequency | 50 / 60 Hz |
| Rated Current | 630 A / 1250 A |
| Rated Short-Circuit Breaking Current | 16 kA / 20 kA |
| Rated Short-Circuit Making Current | 40 kA / 50 kA peak |
| Power Frequency Withstand Voltage | 42 kV (1 minute) |
| Lightning Impulse Withstand Voltage | 75 kV peak |
| Short-Time Withstand Current | 16 kA / 20 kA for 3 seconds |
| Mechanical Endurance | 10,000 close-open operations |
| Vacuum Interrupter Life | More than 30,000 operating cycles |
| Operating Mechanism | Magnetic actuator / spring-operated mechanism |
| Control Voltage | 24V DC / 48V DC / 110V DC / 220V DC |
| Protection Functions | Phase overcurrent, earth fault, sensitive earth fault, under/over voltage, automatic reclosing |
| Reclosing Sequence | Programmable up to 4 reclosing shots |
| Communication Interface | IEC 61850 / DNP3 / Modbus RTU-TCP |
| Enclosure Protection | IP65 weatherproof stainless steel housing |
| Operating Temperature | -40°C to +55°C |
| Applicable Standards | IEC 62271-111, IEC 62271-100, ANSI C37.60 |
The Recloser Circuit Breaker 12KV is widely used in medium-voltage distribution systems where power continuity and automatic fault management are essential. Typical applications include utility overhead feeders, rural electrification projects, industrial parks, solar power collection networks, wind farm distribution systems, and municipal power infrastructure.
By restoring temporary faults automatically and isolating permanent failures quickly, the recloser helps utilities improve SAIDI and SAIFI performance indicators while reducing field inspection requirements. Its intelligent monitoring capability also supports the transition from traditional power distribution networks to smart grid architectures.
As an experienced manufacturer of medium-voltage electrical equipment, we provide customized recloser solutions for global utilities, EPC contractors, and power system integrators. Each unit undergoes comprehensive factory testing, including insulation testing, mechanical operation testing, contact resistance measurement, and protection function verification before delivery.
With reliable vacuum switching technology, flexible communication options, and proven outdoor durability, our Recloser Circuit Breaker 12KV provides a dependable solution for improving distribution network reliability, reducing downtime, and supporting intelligent power management worldwide.
