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Compact Indoor SF6 Load Break Switch 12kV

  • Compact Indoor SF6 Load Break Switch 12kV

Key attributes

Brand ROCKWILL
Series RLS
Rated voltage 12kV
Rated normal current 630/800A
Rated short-circuit making current peak 80kAp
Rated frequency 50 / 60Hz
Description

Rockwill RLS-12 indoor SF6 load break switch is a compact gas-insulated primary device developed for 12 kV indoor medium-voltage distribution systems. It adopts SF6 gas as both insulating and arc-extinguishing medium, equipped with standard three-position contact structure to realize Close, Open and Earthing functions.

With small overall dimensions, lightweight structure, simple installation and stable performance, the product boasts outstanding environmental adaptability. It undertakes control and full-range fault protection for power distribution networks, and is widely matched with ring main units, cable branch cabinets and compact distribution substations.

Product Showcase Video

Compliance Standards

The product complies with current valid international and domestic standards:
IEC 62271-103 (Standalone load break switches),

Core Product Advantages

  • Customized insulation design for 12 kV distribution systems, delivering stable and reliable insulation performance
  • Miniaturized compact lightweight structure, greatly saving cabinet installation space
  • Optional phase spacing: 200–210 mm / 350 mm for flexible cabinet design
  • Fully hermetically sealed SF6 gas tank, maintenance-free for the whole service life
  • Integral epoxy cast housing with high mechanical strength, excellent dustproof and moistureproof capacity
  • Standard three-position mechanical interlock structure to prevent misoperation and enhance operational safety
  • Built-in internal overpressure burst relief design; it discharges high-temperature airflow to protect the whole cubicle during internal arcing faults
  • Optional manual or motorized spring operating mechanism, supporting local on-site operation and remote intelligent monitoring

Technical Specifications 

Item Unit 12 kV Parameter Value
Rated voltage kV 12
Rated frequency Hz 50 / 60
Rated normal current A 630 / 800
1 min power frequency withstand voltage (Phase-to-earth / Across breaking gap) kV 38 / 48
Lightning impulse withstand voltage (peak, Phase-to-earth / Across breaking gap) kVp 75 / 85
Rated short-circuit making current (peak) kAp 80
Rated active load & closed-loop breaking current A 630
Rated cable charging breaking current A 10 / 50
Cable charging breaking current under earth fault A 20
Short-time withstand current (2 s, r.m.s.) kA 31.5
Mechanical endurance operations times 3000 / 5000
 

Note: 1) According to IEC standards, this feature is effective at a maximum ambient temperature of 40 ℃ and an average temperature below 35 ℃ for 24 hours. At higher temperatures, it is necessary to perform rated current derating calculations

(2) This is the expected value, and the actual current is limited by the fuse

Service Environmental Conditions

  • Ambient air temperature: -5 ℃ ~ +40 ℃
  • Relative humidity: Daily average ≤ 90 %, Monthly average ≤ 95 %, no condensation
  • Maximum installation altitude: 2500 m above sea level
  • Suitable for non-corrosive, low-pollution surrounding atmosphere
  • Vibration-resistant construction ensures stable operation under slight vibration

Plateau Installation Reminder:For installation sites over 1000 m altitude, please consult the manufacturer before order placement. Custom reinforced insulation structure is required to adapt to high-altitude low-pressure environments.

Application Scenarios

  • Ring main unit (RMU) complete sets
  • Urban cable distribution networks
  • Compact prefabricated substations
  • Industrial factory power distribution systems
  • Commercial & residential building power supply

Outline dimension & installation sizes

200mm phase distance

Compact Indoor SF6 Load Break Switch 12kV

Solutions - Load Break Switch

  • Compact & Efficient, Flexible Deployment: Modular Load Break Switch Solution Breaks Substation Space Bottlenecks
    Compact & Efficient, Flexible Deployment: Modular Load Break Switch Solution Breaks Substation Space BottlenecksFacing increasing urban power demands and limited construction space, traditional substations are encountering severe space bottlenecks: difficulties in siting new sites, constrained space for retrofit projects, and challenges in equipment capacity expansion and functional upgrades. Particularly in urban center renovations, old station upgrades, and packaged substation applications
  • Life Cycle-Optimized Solution: The Value Proposition of Load Break Switches for Reducing CAPEX and OPEX
    Life Cycle-Optimized Solution: The Value Proposition of Load Break Switches for Reducing CAPEX and OPEXCore Proposition: By significantly lowering initial capital expenditure (CAPEX) and subsequent operating and maintenance expenses (OPEX), our Load Break Switch solution delivers the highest Return on Investment (ROI) throughout the equipment’s lifecycle. It stands as your ultimate choice for superior economics and efficient operational experience.Ⅰ. Initial Cost Optimization: Lower Investment T

Documentation Resource Library Load Break Switch

Public.
Rockwill Electric Group Profile Rockwill Electric Group Profile
Brochure
English
Restricted
RLS type Indoor SF6 Load Break Switch RLS type Indoor SF6 Load Break Switch
Catalogue
English
PDF

Know your supplier

Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m² Total staff: 700+ Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: Medium and High Voltage Switchgear/Power and Distribution Transformers/Instrument Transformers and Sensors/Lightning Protection and Electrical Insulation/Substations and E-Houses/Electrical Panel and Controlgear
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