Automatic AC Transfer Switch - 2 Way - 40 Amp

Product discontinued


Automatic AC Transfer Switch '40Amp 2way '

No more manual changeover switch or inconvenient extension leads, the Latronics® AC Transfer Switch is a fool proof, hassle free solution for multiple power source systems. Fast input switching (transfer time of less than 1 cycle or 0.02 of a second) ensures a smooth transparent transition between power sources.


Eliminate the need to manually switch your power sources and spend more time enjoying life. The unit senses AC power from various sources, eg. inverter / generator / mains power, and automatically switches the output between the various sources accordingly. With prioritised inputs, the most appropriate power source is always selected.

Indicators clearly display when each of the AC power sources and AC output power are available. The generator input also comes with voltage sensing and time delays to ensure the generator has warmed up and the voltage is stable before switching to generator power. The generator voltage is continuously monitored and in the unlikely event the generator voltage becomes unstable the device switches to another power source until the generator voltage restabilises.

There are 2 models available: a 25Amp transfer switch with 3 AC inputs or a 40Amp transfer switch with 2 AC inputs. Both models comply with marine and mobile wiring standards and come in a sealed, weather proof enclosure.


* Compact design
Allows flexibility and ease of installation.

* High Quality Connectors
The Inputs and Outputs are connected via heavy duty high quality screw terminals to ensure a safe and secure connection.

* IP55 Rated Enclosure
Dust and low pressure water jet protection (from all directions) allows it to be installed almost anywhere around the system, without affecting its long term reliability.

* Transparent Changeover
No break changeover time of 0.02 second (<1 cycle) ensures an invisible transfer between power sources.

* Double Pole Contactor
Double pole contactor switches both active and neutral to eliminate any earth or grounding problems and completely isolate each source.

* Simplicity
Minimises and simplifies your systems wiring, while providing a fully automatic system manager.

* On Delay Timer
Ensures the generator has warmed up and the output voltage has stabilised before transferring power to the output.

* Voltage Interlock
Monitors the generators output voltage and if it is too high or too low will transfer the output power back to inverter power until the generators output restabilises.

* Reliability
Over 25 years of experience and continuous adherence to stringent quality standards ensures optimum reliability backed with a full 2 year parts and labour warranty.

* LED Status Indicators
A full set of LED's keeps the user informed of its operation at all times.

* Timer Module Active
* Generator Power Stable
* Generator Power Not Stable
* First Source Power Available
* Second Source Power Available
* Third Source Power Available
* Output Power Available

* Australian
A complete Australian made product, proudly designed and manufactured in Australia by a 100% Australian owned company.

Weight: 3 Kilograms
Warranty: 2yrs

Related Products

No related products.

We install solar systems in Northern NSW and Southern QLD.

Gold Coast (from Coolangatta to Southport), Nerang and Hinterland (Beaudesert) and out West (Warwick, Stanthorpe, Killarney)

Northern NSW (Tweed Heads to Yamba, including Evans Head, Byron Bay and Ballina); the Far North Coast Hinterland (Grafton via Lismore to Murwillumbah) and out West (Casino to Tenterfield, including Drake and Tabulam, as well as Woodenbong and Bonalbo)

For larger system we also go up to Brisbane or down to Coffs Harbour and even Glen Innes. Other places by arrangement.