The safety heart of your property

The switchboard is the safety heart of every electrical installation. It is the point at which energy entering a building is distributed, protected and isolated, and the condition of that equipment determines how effectively every circuit downstream performs and how safely every person in the building is protected. Apex Current Solutions specialises in the replacement and upgrade of switchboards that no longer meet the requirements of AS/NZS 3000 Wiring Rules, from obsolete ceramic-fuse boards and asbestos-backed panels to enclosures that have simply been outgrown by the loads placed on them.

An outdated switchboard is not merely a compliance matter. Ceramic fuses offer no protection against earth leakage or current overload in the way that a correctly specified circuit breaker and RCD combination does. Asbestos-backed panels create a remediation liability that compounds with every year that work in or around the board is deferred. Undersized main switches and inadequate fault-current ratings expose the installation to risks that are invisible in normal operation but catastrophic in a fault condition. Our team assesses the existing installation thoroughly before recommending a scope of works, and delivers the upgrade with the care and documentation that a critical safety asset demands.

Modern Protection Devices Engineered for Your Load Profile

A switchboard upgrade is the opportunity to equip every circuit in the installation with protection precisely matched to its load and sensitivity requirements. Where a blanket RCD across an entire installation creates nuisance tripping from a single fault, individual RCBOs at circuit level provide both residual-current and overcurrent protection independently on each circuit, so a fault on one does not interrupt others. This is the configuration we recommend for kitchens, bathrooms, outdoor circuits and any wiring serving critical or sensitive equipment.

Surge-protective devices are a standard inclusion in our upgraded boards, guarding sensitive electronics and appliances against voltage transients that enter through the supply conductors. As homes and businesses accumulate greater densities of connected equipment, the damage potential of an uncontrolled transient grows accordingly. A properly rated surge protector installed at the main board is the most economical insurance available for that equipment inventory, and it is specified and installed correctly, not added as an afterthought.

• Replacement of ceramic-fuse, porcelain and asbestos-backed switchboards with fully compliant enclosures
• Individual RCBOs for circuit-level residual-current and overcurrent protection without nuisance tripping
• Surge-protective devices rated to AS/NZS 61643 to guard electronics from voltage transients
• Main switch, bus bar and neutral link upgrades matched to current and prospective fault-current ratings
• Three-phase boards and sub-board installations for high-load commercial and residential properties

Three-Phase Boards, Sub-Boards and Load Balancing

For properties running three-phase supplies, whether a large home, a commercial tenancy or an industrial site, the switchboard must distribute load intelligently across all three phases to prevent neutral overloading and maximise the efficiency of the supply. Apex Current Solutions designs three-phase boards with careful load-balancing analysis, ensuring that high-draw circuits such as EV chargers, large air-conditioning systems and industrial machinery are allocated to phases in a way that keeps the supply stable and the metering correct.

We also manage the integration of sub-boards for extended installations where a single main board cannot economically serve remote areas of a building or site. Sub-board design requires accurate discrimination engineering to ensure that a fault on a downstream circuit is isolated by the correct protective device without causing unnecessary upstream tripping. This discrimination is frequently poorly executed in older installations, and we identify and correct it as part of a wider upgrade scope wherever it is encountered.

Every switchboard Apex Current Solutions installs is clearly labelled, documented with a full circuit schedule, tested under load and inspected to the Wiring Rules before a Certificate of Compliance is issued. The asset you receive is one that any licensed electrician can work on safely in the future, and one that your insurer, your building surveyor and your network operator will accept without qualification. Speak to our team to schedule a switchboard assessment.