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Learn more by watching our NLS 30794 | 16A 4.5kA Single Pole RCBO Type A video.
The NLS 30794 is a 16A single-pole RCBO rated 240V with 4.5kA breaking capacity, combining overload, short-circuit, and earth-leakage protection in one compact DIN-rail module. The 30mA Type A sensitivity complies with AS/NZS 61009.1 and meets updated legislative requirements for modern electrical installations, including Victorian regulations. The 1P+N configuration suits residential and light-commercial final subcircuits where integrated MCB and RCD protection is required. With a non-polarised design and 4000-cycle endurance rating, the NLS 30794 is backed by a 3-year manufacturer warranty.
Older AC-type RCD protection is being superseded across Australia. Switchboard upgrades and compliance renewals demand a single device that handles overload, short-circuit, and earth-leakage faults simultaneously. The NLS 30794 achieves this in a compact 18mm width, allowing electricians to fit more circuits into existing DIN rails. Where older installations used separate MCBs and RCDs, the RCBO consolidates both into one module, freeing space for additional protection or reducing the footprint of a complete switchboard. The non-polarised terminal layout eliminates wiring constraints and simplifies installation scheduling on the job site.
Licensed electricians value the NLS 30794 for space-critical switchboard work—kitchen or laundry renos where the existing board has limited capacity, or new builds where the design margin is tight. The 30mA sensitivity is industry-standard for residential shock protection, and the Type A specification ensures compatibility with modern appliances and inductive loads. At standard wholesaler pricing, the RCBO is cost-competitive against paired MCB/RCD solutions, while the compact form means no board extension is necessary. Stock rotation is straightforward because the NLS range of RCBOs shares a common base footprint and wiring protocol.
The NLS 30794 is not suitable for circuits requiring higher breaking capacity (32A, 40A, or 63A), for 3-phase installations, or for locations subject to frequent transient earth faults where nuisance tripping may occur. It is a single-pole device and should not be used in applications requiring multi-pole or dual-pole protection. The 30mA sensitivity is a fixed design parameter and cannot be adjusted.
Verified Sparky Direct customer reviews: NLS 30794 | 16A 4.5kA Single Pole RCBO Type A (30794)
"Well priced and works well. Easily fitted." — David
"Excellent product, led to me buying 22 more for whole of house installation." — Steve
"Seems good. Passed RCD testing." — Lloyd
IMPORTANT: This product is Type A and compliant with the new legislation.
(30794)
A 16A RCBO is commonly used for general-purpose final subcircuits such as power outlets, small appliances, and other loads requiring both overload and earth-leakage protection.
Yes. As a Type A device with 30mA sensitivity and AS/NZS 61009.1 approval, it complies with updated electrical regulations, including mandatory Type A usage in regions like Victoria.
Yes, in a positive way. The non-polarised layout allows the line and load to be wired in either orientation, making switchboard layout and cable routing significantly easier.
It combines overload, short-circuit and earth-leakage protection into one unit, ensuring personal safety and circuit protection in a compact module.
Yes, it fits standard modular DIN rail systems used in Australian switchboards.
Yes, Sparky Direct supplies the NLS 30794, with fast delivery options available for both trade and residential customers.
Type A detects both AC and pulsating DC earth faults, while older AC types detect AC faults only. Modern switched power supplies and LED drivers generate pulsating DC leakage currents that AC-type RCDs miss. Type A is now mandatory in Australian installations.
Yes. The Type A specification makes it ideal for circuits with inductive or switched-mode loads. It will detect the DC fault currents these appliances can generate, whereas older AC-type devices might not trigger.
No. The NLS 30794 is a single-pole plus neutral (1P+N) device designed for single-phase circuits. For 3-phase applications, you will need a 3-pole or 4-pole RCBO.
The non-polarised design lets you wire the line and load in either orientation without rearranging cables. This flexibility simplifies switchboard layout, especially on retrofit jobs where space is constrained.
Yes. The NLS 30794 is a standard 18mm DIN-rail module and fits all Australian switchboard rail systems without modification.
It will work correctly. Type A RCBOs are backward-compatible with existing switchboards. However, for optimal earth-fault detection across the whole board, consider upgrading all RCD protection to Type A when the opportunity arises.
The National Light Sources 30794 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 | 30794 |
| Model # | 30794NLS |
| Barcode # | 9336700016227 |
| Package Weight | 0.110kg |
| TYPE | VALUE |
|---|---|
| Type | Circuit Protection |
| Brand | National Light Sources |
| Rated Current (A) | 16 |
| 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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