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        NLS 30840 | Single Pole 6kA RCBO | 25Amp A-Type

        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.

        NLS 30840 Features

        • 25A Rated Current ideal for higher-capacity domestic subcircuits.
        • Single Pole (1P) RCBO integrates RCD and circuit breaker in one unit.
        • 6kA Fault Capacity supports typical residential short-circuit protection.
        • Type A Sensitivity detects AC and pulsating DC leakage currents.
        • DC Compatibility protects circuits with DC-influenced appliances.
        • Pre-Attached Cables streamline installation and reduce labour time.
        • Compact Format suits modern switchboard layouts with limited depth.

        Where to use this NLS 30840

        • Subcircuits in homes or small businesses requiring 25A RCBO protection.
        • Switchboard upgrades replacing older AC-type protection devices.
        • Installations with modern appliances that may introduce DC leakage.
        • New builds needing A Type compliance in compact switchboard spaces.

        (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.

        100-Day Fuss-Free Returns
        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.

        • Items must be unused, with all parts, accessories, and original packaging.
        • We can’t accept returns if the product is damaged, incomplete, or not in resalable condition.
        • Proof of purchase is required.
        • Return shipping is the responsibility of the customer. 

        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

        • Warranty starts from the Invoice Date
        • Some suppliers offer in-home warranties and handle claims directly, so you won’t need to uninstall or return the product. Chat with us to check if your product qualifies.
        • Sparky Direct isn’t responsible for losses caused by product failure.
        • Warranties are void if products aren’t installed by a licensed electrician.

        Damaged or Faulty Goods
        If your order arrives damaged or is faulty, let us know within 24 hours.

        • Sparky Direct will pay for return shipping via an emailed return label.
        • If the fault is confirmed, we will send you a replacement item or provide a refund.

        Contact us via our chat to arrange the return.

        Exclusions
        We can’t accept returns for:

        • Items that have been installed, modified, or used
        • Clearance, End of life, Discontinued, or special order items (unless faulty)
        • All PPE Items
        • Goods returned without original packaging or proof of purchase

        How to Request a Return

        1. Contact our customer service team with your order number.
        2. Confirm it’s eligible under our return or warranty policy.
        3. Pack the item securely and return it using a trackable service.
        4. Once we receive and inspect it, we’ll process your refund or replacement.

        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
        0.0

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