Outdoor Pole-Mounted SF6 load break switch 40.5kV
Key attributes
| Brand | ROCKWILL |
| Series | RPS |
| Maximum System Voltage | 40.5 kV |
| Rated Continuous Current | 630A |
| Rated Short-circuit Making Current | 50kA |
| Rated Frequency | 50/60Hz |
Description
The RPS series outdoor pole-mounted SF6 load break switch is a fully gas-insulated AC high-voltage switching device specially developed for 40.5kV overhead power distribution networks.
Rated at 630A, 50/60Hz, this product strictly complies with IEC and ANSI international standards, integrating compact mechanical design, superior insulation performance, intelligent secondary monitoring system and flexible customized manufacturing capability.
It is applicable to pole-mounted outdoor deployment as well as substation indoor installation, delivering reliable, safe and low-maintenance switching solutions for medium-high voltage distribution systems.
Product Showcase Video
Product Core Advantages
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Ultra-Compact Mechanical Structure, Minimal Installation Footprint：The whole switch body adopts integrated sealed tank structure, with optimized layout of internal contact and operating mechanism. Compared with traditional air-type pole-mounted switches, it greatly reduces overall volume and occupied space. It adapts to narrow pole installation space and compact substation cabinet layout, lowering civil engineering and installation cost for customers.
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Premium High-Grade Insulation & Stable SF6 Gas Insulation System：Fully sealed stainless steel tank filled with SF6 insulating gas, matched with high-performance outdoor composite polymer bushings. The product achieves high insulation withstand level, excellent anti-pollution, anti-condensation and anti-corrosion capacity, stable dielectric performance under harsh outdoor environments (heavy fog, salt mist, dust). Fully sealed gas chamber eliminates gas leakage risk in long-term operation, no regular gas refilling required.
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Integrated Intelligent Secondary Control & Real-Time Monitoring Function：Equipped with complete intelligent secondary control module, supporting remote opening/closing control, real-time data collection including gas pressure monitoring, switch position status (ON/OFF mechanical indicator visible on front panel), fault signal feedback and communication linkage. It realizes unattended operation of distribution networks, compatible with mainstream distribution automation DTU/FTU systems.
Parameter Item
| Maximum System Voltage | 40.5kV |
| Rated Continuous Current | 630A |
| Rated Frequency | 50/60Hz |
| Short Time Withstand Current | 20kA / 1s |
| Rated Load Breaking Current | 630A |
| Number of Load-break Operations | 400 times |
| Rated Short-circuit Making Current (peak value) | 50kA |
| Number of Short-circuit Making Operations | 5 times |
| Cable Charging Breaking Current | 25A |
| Line Charging Breaking Current | 1.5A |
| Closed Loop Breaking Current | 630A |
| Transformer Magnetizing Breaking Current | 22A |
Service environment
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Air temperature: Maximum temperature: +45℃; Minimum temperature: -40℃
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Humidity: Daily average humidity 100%.
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Above sea level: Maximum installation altitude: 1000m.
If it needs to be installed in plateau areas with an altitude higher than 1,000 meters, it is essential to consult with the manufacturer to take necessary measures to strengthen insulation during the ordering process.
Application Scope
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Urban & rural 40.5kV overhead pole distribution networks
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Compact prefabricated distribution substations
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Ring main distribution switching stations
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Industrial park, mining, wind/solar new energy medium-voltage power supply systems
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Global overseas power grid projects requiring IEC & ANSI certification
Appearance and dimension of switch
Solutions for SF6 load break switch
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Documentation Resource Library SF6 load break switch
