Products
Switchgear for MV and LV networks.
Delstar supplies Australasia's premier switchgear range. Ring main units, MV primary switchgear, MV industrial switchgear, LV switchboards and distribution boards, reclosers, and load break switches. Built by premier European and Asian switchgear manufacturers, hardened where required for outdoor installation, and matched to your network's electrical, operational, and service-life expectations.
7 product families
The switchgear range
Ring Main Units
Gas insulated ring main units from 12 to 40.5 kV with internal arc protection, full switching capacity if insulating gas is lost, and SF6 free options.
- Voltage class
- 12 to 40.5 kV
- Rated current
- 630 A
- Insulation
- SF6 or SF6 free (technical air)
MV Primary Switchgear
Metal clad MV switchgear from 3.6 to 40.5 kV, air and gas insulated, up to 4,000 A and 40 kA, for zone and bulk supply substations.
- Voltage class
- 3.6 to 40.5 kV
- Rated current
- 630 to 4,000 A
- SC breaking current
- Up to 40 kA
MV Industrial Switchgear
Industrial and commercial MV switchgear from 3.6 to 40.5 kV: fixed and withdrawable cubicles, compact and miniaturised options, and load switch fuse units.
- Voltage class
- 3.6 to 40.5 kV
- Rated current
- 630 to 3,150 A
- SC breaking current
- Up to 40 kA
LV Switchboards and Distribution Boards
LV switchboards up to 690 V AC and 6,300 A main busbar, fixed, withdrawable and drawer construction, Form 1 to Form 4b.
- Voltage
- Up to 690 V AC
- Main busbar
- Up to 6,300 A
- Withstand current
- Up to 100 kA
LV Fuse Switch Disconnectors and Busbar Systems
Modular LV busbar systems with NH fuse switch disconnectors, switch disconnector fuses and circuit breaker adapters up to 1,600 A, touch safe and mountable on a live busbar.
- Fuse sizes
- NH00 to NH3
- Fuse rating
- 160 to 630 A
- Breaker adapters
- Up to 1,600 A
Reclosers
Pole mounted reclosers for 11, 22 and 33 kV overhead networks, with vacuum interruption in solid epoxy, magnetic actuators and bi-directional versions for distributed generation.
- Rated voltage
- 15.5, 27 and 38 kV
- Rated current
- 630 and 800 A
- Insulation
- Solid epoxy, no SF6
Load Break Switches
Outdoor and indoor load break switches for 11, 22 and 33 kV networks, with oil, vacuum or air arc quenching, switch fuse combinations and motor operation.
- Voltage class
- 12 to 38.5 kV
- Rated current
- 400 to 1,250 A
- Arc quenching
- Oil, vacuum or air
Where it is used
Applications
Delstar switchgear is supplied across the electrical infrastructure of Australasia's most demanding sectors:
- Zone and bulk supply substations (primary switchgear)
- Distribution substations (RMUs and kiosks)
- Industrial MV and LV switchboards (mining, oil and gas, heavy industry)
- Compact substations for renewables and BESS interconnection
- Data centre and hyperscale power infrastructure
- Rail traction and traction power substations
- Independent power producer connection assets
- Asset renewal, life-extension, and SF6-to-SF6-free upgrade programmes
Sourcing and quality assurance
We source switchgear from premier European and Asian OEMs whose installations operate reliably in demanding networks worldwide. Every unit supplied is:
- Type-tested and routine-tested per manufacturer standards, with factory acceptance testing (FAT) available for witness
- Available with seismic qualification and with corrosion protection for harsh coastal and industrial environments, for installations that require it
- Supplied with full technical documentation, routine test reports, and equipment traceability
Lifecycle support
Our switchgear supply is backed by the engineering services required to install, commission, and support each installation across its operational life:
- Installation and commissioning: panel assembly, on-site testing, primary and secondary injection, energisation support
- Testing services: routine and diagnostic testing, protection settings verification, partial discharge and thermal imaging
- Asset management: condition assessment, life-extension planning, upgrade and replacement programmes, SF6-to-SF6-free transition support
Talk to our team
Discuss your switchgear requirements
Whether you are specifying a new zone substation, replacing MV distribution switchgear as part of an asset renewal programme, or planning an SF6-to-SF6-free upgrade, our engineering team is available to advise on specification and confirm lead times.