Electronic Sectionaliser for Distribution Networks

Smarter protection for overhead distribution lines

Insulect’s Electronic Sectionalisers – known as Sectolink – are designed for advanced fault isolation and protection on overhead distribution networks. Used in conjunction with an upstream recloser, Sectolink units replace traditional dropout fuses to offer a more intelligent and coordinated protection scheme. Available in 12/24kV and 36kV configurations, these devices are ideal for SWER, single-phase, and three-phase systems across both low and high current applications.

With programmable trip counts, wide current rating options (from 8A to 400A), and compatibility with standard EDO mounts, Insulect’s Electronic Sectionalisers deliver operational simplicity, network reliability, and custom-fit flexibility for rural and remote installations.

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Built for Demanding Overhead Networks

Insulect Electronic Sectionalisers are purpose-built for rugged performance on overhead distribution lines, including SWER, single-phase, and three-phase systems. These units replace traditional dropout fuses and offer smart fault coordination with upstream reclosers—enhancing safety and efficiency for rural and remote networks.

Reliable Protection with Intelligent Timing

Electronic Sectionalisers are designed to trip in coordination with an upstream field recloser. With field-settable operating counts (1, 2, 3 or 4), they intelligently isolate only after confirming transient fault clearance, reducing nuisance outages and equipment damage. Available for pickup current ratings from 8 to 400 amps.

Easy Fit with Existing Infrastructure

Designed to install into the majority of standard single-vented dropout fuse mounts, Insulect's Electronic Sectionalisers provide a simple and effective upgrade path. No major hardware changes required—making it ideal for both retrofit projects and new installations across a variety of current levels.

Smarter Fault Management, Safer Networks

Electronic Sectionalisers eliminate the need for manual fuse replacement and reduce fault response times. By enabling automatic fault isolation and coordination with reclosers, they enhance operational reliability and reduce O&M costs—especially in areas lacking SCADA or remote control access.

TECHNICAL

Features & Functionality

Functionality & Options

Purpose-built for reliable fault isolation and network protection in medium-voltage overhead distribution systems
Compact and lightweight design enables fast installation in tight pole-top or rural locations
Suitable for SWER, single-phase, or three-phase applications, with standard dropout fuse mounting compatibility
Programmable logic supports operation in conjunction with upstream reclosers (1–4 count settings)
Maintenance-free, corrosion-resistant design built for harsh Australian conditions and extreme climates

Key Technical Specifications

Rated Voltage: 12 kV / 24 kV / 36 kV
Rated Current: 8 A to 400 A
Operation Count Setting: Field-settable from 1 to 4
Mounting Compatibility: Fits standard dropout fuse mounts
Configuration: SWER, single-phase, and three-phase models
Mechanical Life: ≥ 2,000 operations
Standards Compliance: AS 62271.102 / IEC 62271.102

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 Electronic Sectionalisers

Insulect’s Electronic Sectionalisers offer an advanced alternative to traditional fuse protection on overhead distribution networks, delivering enhanced fault isolation and operational continuity. Built and tested in Australia to comply with AS and IEC standards, they are engineered for local conditions and utility requirements.

Available in 12/24kV and 36kV ratings, and in SWER, single-phase, or three-phase configurations, these devices work in tandem with upstream reclosers to eliminate transient faults—improving network reliability without the need for manual intervention. The electronic control unit counts recloser operations (field-settable from 1 to 4) before locking out, ensuring only permanent faults result in isolation.

Customers benefit from seamless retrofit compatibility with most standard dropout fuse holders, robust field performance, and minimal maintenance requirements. Whether for rural feeders, constrained pole-top environments, or modern SCADA-enabled networks, Insulect’s sectionaliser range delivers dependable protection and smarter fault management where it matters most.

Safer Switching in the Field

Designed for safer, smarter protection, Insulect’s Electronic Sectionalisers eliminate manual fuse replacement and reduce operator exposure to faulted lines. Their programmable trip logic ensures only permanent faults are isolated—enhancing crew safety and restoring power faster after transient faults

Proven Durability in Harsh Conditions

Engineered from corrosion-resistant materials and sealed electronics, Insulect’s sectionaliser units are built to withstand Australia’s toughest rural and coastal environments. Reliable performance is maintained across temperature extremes, moisture, dust, and vibration—ensuring dependable fault isolation in the field.

Smart Grid-Ready Performance

Supporting SCADA-enabled networks and recloser coordination, our Electronic Sectionalisers are field-programmable and upgrade-ready. With flexible pickup settings (8–400 A) and pole-compatible form factors, they seamlessly integrate with your grid’s evolving automation and resilience strategies.

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.