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Learn more by watching our HAGER ADA920T | 20 Amp 2 Pole 6kA | 30mA RCD/MCB RCBO video.
The Hager ADA920T is a 20A two-pole residual current circuit breaker with overload (RCBO), combining RCD and MCB protection in a single DIN rail module. Rated 240V 50Hz with a 6kA breaking capacity and 30mA Type A Earth leakage sensitivity, the ADA920T is approved to AS/NZS 61009-1 and designed for single-phase circuits protecting motors, appliances, and control equipment on residential and commercial installations. The ADA920T includes a manual test switch for periodic verification and resets automatically after the fault condition is cleared.
Electrical contractors stock the ADA920T because it cuts fitout time on the board. Rather than purchasing separate MCB and RCD devices, a single RCBO does both jobs, reducing module count and wiring on the switchboard. This two-pole configuration suits standard 240V single-phase circuits where both active and neutral require protection, a common requirement in modern domestic and commercial work.
On jobs where protection and installation speed matter equally, the ADA920T is a straightforward choice. The DIN rail mount is standard across all switchboard fits, the test button sits flush on the cover, and the C-curve characteristic suits general-purpose loads without nuisance tripping. Licensed electricians find the all-in-one design cuts time at the board and reduces the stock of single-function breakers needed to handle the full protection range on a job.
The ADA920T is not suitable for circuits in TT earthing systems where the main earth connection is via a single earth electrode; these systems require higher-sensitivity RCDs (typically 10mA) upstream of the main switchboard or upgraded earth bonding. The ADA920T is not rated for DC leakage currents beyond the Type A specification and should not be used on installations with significant harmonic distortion or DC-switching equipment without consultation with the switchboard designer.
Verified Sparky Direct customer reviews: Hager Electrical ADA920T (ADA920T)
"Great products, good prices & quick delivery." — Justin
"Easy to fit, perfect rapid operation." — Chris G
"Fit outs made easy." — Graham Moody
(ADA920T)
The ADA920T is a single module combining both RCD (residual current detection) and MCB (overload) protection. Instead of purchasing and installing two separate devices, a single ADA920T provides both functions in one DIN rail slot, reducing switchboard complexity and fitout time.
Installation of the ADA920T must be carried out by a licensed electrician. The device is a safety-critical component requiring correct DIN rail mounting, terminal connection to 1–25mm² cable, and verification of correct polarity and earth bonding on the switchboard.
The ADA920T uses standard DIN rail mounting and occupies two module positions (35mm width). It is compatible with all Australian and New Zealand switchboards using DIN rail enclosures and rated for the 240V 50Hz supply. Verify with your installer that the enclosure has available space and correct earthing arrangement.
Type A sensitivity detects both AC and pulsating DC leakage currents. Modern installations with switched-mode power supplies, LED lighting, and inverters produce DC components in fault currents, so Type A is recommended for homes with solar systems, heat pumps, or variable-frequency drives. Older installations with only AC loads may use Type AC, but Type A is now standard in new work.
The ADA920T carries a two-year warranty covering manufacturing defects, starting from the invoice date. The warranty covers replacement or repair of the device if a defect develops during normal use. The warranty is void if the device is installed by an unqualified person or if the installation does not comply with AS/NZS 3000 and AS/NZS 61009-1.
The Hager Electrical ADA920T 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: 2 Year
Commercial Use: 2 Year
Warranty Method: Return to Sparky Direct
These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Hager Electrical |
| SKU | ADA920T |
| Model # | ADA920T |
| Barcode # | 3250611011613 |
| Package Weight | 0.240kg |
| TYPE | VALUE |
|---|---|
| Type | Circuit Protection |
| Brand | Hager Electrical |
| Range | ADA |
| Rated Current (A) | 20 |
| Height (mm) | 83 |
| Width (mm) | 35 |
| Depth (mm) | 68 |
| Standards | AS/NZ 61009-1 |
| Mounting | DIN Rail |
| Voltage (V) | 240 |
| Number of Poles | 2 |
| IP Rating | IP20 ( IP40 Enclosed ) |
| Breaking Capacity | 6kA |
| Neutral Position | Right |
| 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.
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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