Gas Load Break Switches for Distribution Networks

Safe, flexible switching for overhead distribution and rail networks.

Insulect’s Gas Load Break Switches provide reliable switching solutions for medium voltage overhead distribution and rail networks. Designed to operate under load, our switches use SF₆ or environmentally responsible alternatives to deliver arc-free, high-performance operation across a range of configurations.

With ratings from 12kV to 36kV, they are suitable for pole-mounted, ground-mounted and kiosk installations. Options include manual or remote operation, integrated protection, and custom enclosures tailored to specific network requirements.

All units are engineered for the Australian climate and manufactured to comply with IEC and AS standards.

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Engineered for Safe, Reliable Switching in Harsh Environments.

Insulect’s Gas Load Break Switches (GLBS) are purpose-built for the demands of distribution networks across Australia and the Asia-Pacific. Designed to perform in extreme heat, high-moisture, and corrosive environments, these switches provide reliable load breaking and fault isolation up to 36 kV. They are trusted solutions for above-ground and underground applications, particularly in rural and remote zones where manual or SCADA-enabled switching is required.

Safe, Visible Switching with High Load Capacity.

Insulect GLBS units are engineered for dependable load break functionality up to 36 kV, 630 A. The sealed SF₆ gas-filled chamber ensures arc-quenching performance and dielectric strength, supporting safe, repeatable operations. Featuring visible open gap confirmation, internal arc fault containment, and IEC certification, these switches are built for security, safety, and peace of mind in live line conditions.

Configurable to Suit Network and Site Requirements.

With pole-top and pad-mount options, manual or remote operation, and flexible terminal configurations, Insulect GLBS units integrate seamlessly into both new and retrofit networks. Custom control cabinet layouts, SCADA compatibility, and tailored brackets ensure ease of installation across a wide range of utility standards and site conditions.

Enhancing Switching Control. Increasing Network Uptime.

In modern electricity networks, reducing outages and improving switching efficiency is critical. Insulect Gas Load Break Switches are designed to support rapid restoration and sectionalisation of faults—helping utilities isolate issues and reroute power safely. With options for remote operation and robust local service, we help future-proof your network for reliability, responsiveness, and long-term performance.

TECHNICAL

Features & Functionality

Functionality & Options

Designed for dependable load break operation in overhead distribution systems, enabling safe switching of electrical circuits under load conditions.
Compact footprint ideal for constrained pole-top environments.
Sealed for outdoor performance and durability in Australia’s most extreme weather conditions, including coastal and high-humidity zones.
Utilises SF₆ gas for arc quenching and insulation, offering superior dielectric strength and consistent switching performance over time.
Optional accessories include earth blades, position indicators, and mechanical interlocks to enhance operational safety and visibility.

Key Technical Specifications

Rated Voltage: 12 kV – 36 kV
Rated Current: Up to 630 A
Short-Circuit Making Current: Up to 16 kA
Insulation Medium: SF₆ gas
Mechanical Life: ≥ 2,000 operations
Mounting: Pole-mounted
Operating Mechanism: Manual or motorised options available
Compliance Standards: IEC 60265-1, AS/NZS 62271 series

EXPERIENCE

Our Projects Featuring Insulect Switchgear

Explore our project highlights to see where Insulect Switchgear is making an impact.
For tailored advice on whether this solution suits your network, please connect with our team here.

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Wunghnu Solar Farm

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Fortescue Aldoga, New 275kV Substation Switchgear

ADVANTAGES

Why Choose Insulect for Gas Load Break Switches

Insulect’s Gas Load Break Switches are engineered for reliable performance in environments where conventional equipment may struggle. With proven installations across remote and rugged regions of Australia and the Asia-Pacific, the GLBS range is designed to minimise maintenance and maximise network uptime. A weather-sealed SF₆ chamber ensures dependable arc quenching and internal fault containment, allowing the switches to operate reliably even in high humidity, coastal salinity, and extreme temperature conditions.

Safety and flexibility are central to the design, with features such as a visible isolation gap and enclosed arc handling to provide greater operator assurance. The GLBS range also supports SCADA integration, manual switching, and retrofit applications within existing networks. Backed by Insulect’s local engineering and service support, these switches provide dependable performance when it matters most.

Safer Switching in the Field

With a visible break and gas-insulated arc suppression, these switches are designed to manage live load break operations while protecting operators from arc flash and external hazards.

System Uptime & Grid Reliability

Their robust sealing and modular construction minimise risk of ingress, corrosion, and insulation failure—making them ideal for mission-critical, remote, or weather-exposed sites.

Future-Ready Control & Monitoring

Insulect gas load break switches can be SCADA-enabled for remote operation and real-time visibility, helping utilities evolve toward smarter, more responsive networks.

IMPLEMENTATION

Services & Support

Insulect offers comprehensive services and support for the products we manufacture and specialise in, enhancing value for local utilities, major energy users, equipment manufacturers, and service operators.

LOCAL TECHNICAL TEAM

Our local technical team provides exceptional support and expertise, ensuring quick response times and personalised service to tackle any challenges that may arise during project execution.

ENGINEERING DESIGN

Our team utilises advanced technology and industry knowledge to develop innovative and efficient high voltage switchgear solutions, customised to fit the unique requirements of each project.

PROCUREMENT & LOGISTICS

We facilitate smooth procurement and logistics processes by sourcing from trusted, proven partners and coordinating timely deliveries, ensuring projects remain on schedule and within budget.

TESTING & COMMISSIONING

Professional testing and commissioning support ensures that every high-voltage switchgear system functions safely and reliably, adhering to all regulatory standards and client expectations.

TURNKEY PROJECT DELIVERY

We are able to oversee every phase from concept to completion, providing comprehensive solutions that simplify complex projects and ensure successful outcomes.

FACTORY VISITS

We facilitate client visits to our local manufacturing sites here in Australia, as well as overseas, for initial inspection as well as factory acceptance testing.