REDARC RS3 3000W inverter at an angle, showing the finned black aluminium housing and the AC panel on the front face

Redarc

3000W 12V Inverter with ATS and RCD

Name: Redarc 3000W 12V Inverter with ATS and RCD
Brand: Redarc
Price: 2585.95 AUD
Availability: InStock

R-12-3000RS3

Power the tough stuff, anywhere.Built for air conditioners, toasters, microwaves and other high-draw appliances, the REDARC RS3 3000W Pure Sine Wave Inverter delivers smooth, reliable 240V power straight from your vehicle battery. Built rugged for off-road travel and off-grid builds,…

$2,585.95

4 interest-free payments of $646.49 with Afterpay

or finance your build with Allied Finance

Important note

REDARC’s RS3 range represents the next generation of 12V pure sine wave inverters, combining rugged performance with modern convenience. These units are purpose-built for Australian conditions and trusted across 4WD, RV, and trade applications.

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Suits 12V electrical systems in 4WDs, utes, campervans, caravans, motorhomes, boats and fixed off-grid installations.

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3000W CONTINUOUS, 6000W SURGE

Runs an air conditioner or microwave, with surge headroom for compressor start-up

AUTOMATIC TRANSFER SWITCH

Moves between battery and mains on its own when you plug in at a caravan park

ASSISTS AS/NZS 3001 COMPLIANCE

The in-built RCD cuts the 240V output on a fault, and helps a caravan or RV build meet the wiring standard

PLUGS IN, NO HARDWIRING

IEC C20 input with C19 and 15A GPO outputs, so a standard install needs no electrician

QUIET UNTIL IT NEEDS TO BE

Load-controlled cooling fan stays quiet at low draw and only ramps up under heavy load

Power the tough stuff, anywhere.
Built for air conditioners, toasters, microwaves and other high-draw appliances, the REDARC RS3 3000W Pure Sine Wave Inverter delivers smooth, reliable 240V power straight from your vehicle battery.

Built rugged for off-road travel and off-grid builds, this inverter combines high surge capacity, quiet operation and advanced safety features. The RS3 includes an automatic transfer switch (ATS), and assists with AS/NZS 3001 compliance thanks to an integrated Residual Current Device (RCD).

Housed in a vibration-resistant aluminium shell, it is made for long road trips, remote setups and vanlife alike, with REDARC reliability and support behind it.

3000W continuous output with a 6000W surge for two seconds
Automatic Transfer Switch moves between battery and mains without you touching anything
In-built Residual Current Device protects the 240V output against electric shock
Assists AS/NZS 3001 compliance in caravan and RV installations
IEC C20 input with IEC C19 and 15A GPO outputs, so the 240V side plugs in rather than being hardwired
Pure sine wave output suits sensitive electronics
Load-controlled cooling fan, so it runs quietly at lower draw and only ramps up under heavy load
Vibration-resistant aluminium shell built for corrugations and heat

ModelR-12-3000RS3

Continuous Power3000W

Surge Power6000W for 2 seconds

Nominal Voltage12V

DC Input Voltage Range10.5 - 16.5V DC

AC Nominal Output Voltage230/240V

AC Input Voltage Range216V - 244V

Input SocketIEC C20

Output SocketsIEC C19 and AS/NZS 3112 15A GPO

Weight10.3 kg

Dimensions467mm (L) x 318mm (W) x 131mm (H)

Length: 467mm

Width: 318mm

Height: 131mm

Weight: 10.3kg

Source: manufacturer-verified

Everything this install needs

0 of 0 in the box

The 240V side uses plug-in IEC connections, so no hardwiring is required for a standard setup
Mount on a solid, vibration-resistant surface
Install in a ventilated space and keep the cooling fan clear
Size the 12V cabling and fusing to suit the load the inverter will actually run
The in-built RCD assists with AS/NZS 3001 compliance in caravan and RV installations
The full instruction manual is in the Users Manual panel on this page
Our Perth workshop can supply, fit and test the complete system if you would rather not do it yourself

Suits 12V electrical systems in 4WDs, utes, campervans, caravans, motorhomes, boats and fixed off-grid installations.

Q: What can a 3000W inverter actually run?
A: High-draw equipment such as air conditioners, microwaves, toasters and coffee machines, or several smaller appliances at once. The 6000W surge rating covers the start-up spike from motors and compressors.

Q: How is the RS3 different from the older RS 3000W?
A: The RS3 adds an Automatic Transfer Switch and an in-built RCD, and uses plug-in IEC connections instead of a hardwire plate. It is a physically different unit as well, at 10.3kg against 8.2kg.

Q: Can I leave it connected when I plug in at a caravan park?
A: Yes. The Automatic Transfer Switch moves between mains and battery on its own, so you are not swapping leads or draining the battery when shore power is available.

Q: What does the in-built RCD do?
A: It acts as a circuit breaker on the 240V output, cutting power if it detects a fault, and it assists with AS/NZS 3001 compliance in caravan and RV builds.

Q: What battery do I need to run it?
A: At full output a 3000W inverter draws roughly 250A from a 12V battery before conversion losses, so plan on a bank rated to at least 300A continuous discharge. Our Custom Lithium Next Generation 310Ah is rated to 330A continuous, which covers the RS3 at full load. A smaller bank will still run the inverter, but not at full output for long.

Q: Do I need an electrician to install it?
A: No. The RS3 connects on the 240V side with plug-in IEC leads rather than fixed wiring, so a standard installation does not need one. The 12V side still needs correctly sized cable and fusing. Our Perth workshop fits and tests these if you would rather not do it yourself.

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