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Learn more by watching our NLS 30840 | Single Pole 6kA RCBO | 25Amp A-Type video.
The NLS 30840 25A Single Pole RCBO 6kA A Type delivers combined protection from overload, short-circuit, and earth-leakage faults in one compact device. With Type A sensitivity, it detects both AC and pulsating DC residual currents, making it suitable for circuits with electronic equipment or appliances that may generate DC leakage.
Designed for convenience, it features pre-wired tails for faster installation and a slim body profile to suit tight switchboard spaces. Fully compliant with AS/NZS 61009.1, this 25A RCBO is a reliable choice for residential and light commercial applications.
(30840)
It combines overload, short-circuit and earth-leakage protection into one compact device.
It’s rated 25A, making it suitable for higher-capacity domestic and light-commercial subcircuits.
The device has a 6kA breaking capacity, matching typical Australian residential fault levels.
Type A sensing detects both AC and pulsating DC leakage, improving safety for circuits powering modern electronic appliances.
Yes, the reduced-depth design fits well into tight or shallow switchboards.
Yes, Sparky Direct stocks NLS 30840 and offers quick delivery depending on warehouse supply and your location.
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We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.
If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.
All products come with a manufacturer’s or supplier’s warranty
Damaged or Faulty Goods
If your order arrives damaged or is faulty, let us know within 24 hours.
Contact us via our chat to arrange the return.
Exclusions
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How to Request a Return
Warranty starts from Invoice Date
Domestic Use: 2 Year
Commercial Use: 2 Year
Warranty Method: Return to Sparky Direct
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | NATIONAL LIGHT SOURCES |
| SKU | 30840 |
| Model # | 30840NLS |
| Barcode # | 9336700016692 |
| Package Weight | 0.164kg |
| Package Width | 0.080m |
| Package Height | 0.035m |
| Package Length | 0.110m |
| TYPE | VALUE |
|---|---|
| Type | Circuit Protection |
| Brand | National Light Sources |
| Rated Current (A) | 25 |
| Height (mm) | 92 |
| Width (mm) | 18 |
| Depth (mm) | 77 |
| Standards | AS/NZ 61009-1 |
| Mounting | Din Rail |
| Curve | C |
| Voltage (V) | 240V |
| Earth Leakage Protection Class | Type A |
| Earth Leakage Sensitivity | 30mA |
| Residual Current | 30mA |
| Breaking Capacity | 6kA |
| Overcurrent trip characteristic | C Curve |
| Earth Fault Wave Form | Type A |
| IP Rating | IP20 ( IP40 Enclosed ) |
| Number of Poles | 1P+N |
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.
Tools sold by Sparky Direct must be used safely and in accordance with the manufacturer’s instructions. Customers are responsible for ensuring they have the necessary knowledge and competence to operate any tool purchased. If you are unsure how to safely or correctly use a tool, do not use it and seek guidance from the manufacturer or a suitably qualified professional.
Nothing in this clause limits or excludes any rights or guarantees available under the Australian Consumer Law.
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