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Learn more by watching our NLS 30793 | 10A 4.5kA Single Pole RCBO Type A video.
IMPORTANT: This product is Type A and compliant with the new legislation.
The NLS 30793 is a 10A 4.5kA single pole RCBO (residual current circuit breaker with overcurrent protection) for residential switchboard installation. Rated 240V with 30mA earth-leakage sensitivity and Type A compliance, it combines MCB and RCD protection in a compact 1P+N DIN-rail format, meeting current Australian regulatory requirements including Victorian installation rules.
Modern switchboards increasingly demand Type A RCBOs to meet updated compliance standards. The 30793 replaces older AC-type devices and handles both general lighting and power subcircuits at 10A protection levels. Its non-polarised design allows flexible wiring orientation during install, and the 4.5kA breaking capacity suits typical residential fault levels, simplifying stock rotation on the jobsite.
Electricians specify the NLS 30793 for its straightforward DIN-rail mount and dual-function (MCB + RCD) architecture, which cuts cabinet space versus separate devices. The Type A classification and 4000-cycle electromechanical endurance underpin its acceptance on residential retrofit jobs where space and compliance are tight. The non-polarised layout reduces pre-install wiring planning and removes a common site-fit constraint on older boards.
The NLS 30793 is not suitable for circuits requiring higher current ratings (16A, 20A, 25A, 32A versions are available separately as alternatives). It is a general-purpose device and does not provide surge suppression or selective coordination with upstream protection devices; appropriate fault-level and selectivity calculations remain the installer's responsibility under AS/NZS 3000.
Verified Sparky Direct customer reviews: NLS 30793 | 10A 4.5kA Single Pole RCBO Type A (30793)
"Easy and fast ordering and shipping. RCBO arrived quickly and as advertised." — Show Technology
"Such a simple, compact and robust design. It's a good quality product, easy to install." — Electrostatics
"Quick and easy." — Frontosa
(30793)
Its Type A classification, 30mA RCD sensitivity, and 1P+N configuration meet current regulatory requirements, making it suitable for new builds and compliant upgrades.
Yes. It is a Type A RCBO, which is now the preferred and required type in many regions, including Victoria, when upgrading from outdated AC devices.
With a 10A rating and 4.5kA breaking capacity, it suits standard final subcircuits such as lighting and small power loads.
The non-polarised layout allows line and load to be wired in either orientation, giving installers more flexibility during fit-off.
Yes, it is fully certified to AS/NZS 61009.1 and suitable for residential switchboards nationwide.
Yes, Sparky Direct supplies the NLS 30793, with fast and reliable shipping available for both trade and residential customers.
The 30793 is Type A, which detects both AC and pulsating DC earth leakage, making it suitable for circuits with variable-frequency drives and switched-mode power supplies. Older AC-type RCBOs detect AC leakage only and are now considered outdated for new installations.
It carries a 3-year replacement warranty from National Light Sources covering manufacturing defects. Installation must be carried out by a licensed electrician under AS/NZS 3000 for the warranty to be valid.
Yes, 30mA is the standard sensitivity for personal protection against electric shock on domestic circuits under AS/NZS 61009.1, providing a balance between safety and practicality for general household use.
Yes. Installation must be performed by a licensed electrician in accordance with AS/NZS 3000. The switchboard work, DIN-rail mounting, terminal connections, and final inspection all fall under electrical work that requires a current license.
Breaking capacity is the maximum fault current the RCBO can safely interrupt. The 4.5kA rating suits typical residential fault levels and removes the need for fault-level assessment on standard domestic boards, simplifying the selection process.
Yes, the compact 1P+N DIN-rail design fits into standard 35mm rails on legacy boards. The non-polarised terminal layout provides flexibility when rewiring older installations, though compatibility with the board's existing rail and spacing should be confirmed before ordering.
Yes, the Type A classification and 30mA earth-leakage sensitivity meet current Victorian regulations. It complies with AS/NZS 61009.1 and is approved for use across Australia, including new builds and compliant upgrades.
The National Light Sources 30793 is available online from Sparky Direct, with Australia-wide delivery to any state or territory including regional areas. Sparky Direct is an Australian electrical wholesaler established in 2005, supplying more than 500,000 customers with transparent trade pricing.
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Warranty starts from Invoice Date
Domestic Use: 3 Year
Commercial Use: 3 Year
Warranty Method: Return to Sparky Direct
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | NATIONAL LIGHT SOURCES |
| SKU | 30793 |
| Model # | 30793NLS |
| Barcode # | 9336700016210 |
| Package Weight | 0.110kg |
| TYPE | VALUE |
|---|---|
| Type | Circuit Protection |
| Brand | National Light Sources |
| Rated Current (A) | 10 |
| Height (mm) | 81 |
| Width (mm) | 18 |
| Depth (mm) | 75 |
| Standards | AS/NZS 61009:1 |
| Mounting | DIN Rail |
| Voltage (V) | 240V |
| Number of Poles | 1P+N |
| IP Rating | IP20 ( IP40 Enclosed ) |
| Breaking Capacity | 4.5kA |
| Box increments (This item is sold individually) | 12 |
| Earth Leakage Sensitivity | 30mA |
| Earth Leakage Protection Class | Type A |
| Curve | C |
Electrical and HVAC products sold by Sparky Direct are intended for installation by licensed and appropriately qualified professionals in accordance with applicable Australian Standards and regulatory requirements. Customers are responsible for ensuring that any product purchased, including any related or associated components, is compatible and suitable for their intended installation and application.
Sparky Direct does not provide installation advice and does not assess product suitability for individual circumstances unless expressly confirmed in writing. Customers must confirm correct product selection, compatibility, compliance, and suitability with a licensed or appropriately qualified professional prior to purchase.
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