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USER MANUAL 

EarthGuard – EG-300 

Australian Energy Research Labs 

AER013 – Rev 1.1 

21st July 2020

 

AER013 REV 1.1 

 

About Australian Energy Research Laboratories 

Australian Energy Research Laboratories (AERL) was founded by Stuart Watkinson (BE Elec. Eng., Grad. M.I.E.A) in 
1985 to commercialize the “Power Optimizer”, a revolutionary solution to a complex problem, developed while 
studying at the University of Queensland in Brisbane, Australia. 
 
Unlike many inventors, Stuart possessed not only a great idea, but also the entrepreneurial skill to turn it in to a 
commercially viable product.  The “Power Optimizer” would eventually come to be known as the AERL 
MAXIMIZER™, the world’s first truly Universal Maximum Power Point Tracker (MPPT). 
 
Today, AERL manufactures a range of highly reliable and efficient specialised power electronic controllers for use in 
Solar, Micro Hydro, Micro Wind and Cathodic Protection applications. 
 

Contact Information  

Address:  

Unit 15, 1015 Nudgee Rd,  
Banyo, QLD, 4078, Australia 
 

Phone:   

+61 07 3129 0330

 

Email:    

[email protected]

 

Website: 

https://www.aerl.com.au

 

Disclaimer  

UNLESS SPECIFICALLY AGREED TO IN WRITING, AUSTRALIAN ENERGY RESEARCH LABORATORIES:  

(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR 
OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.  

(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSS OR DAMAGE, WHETHER DIRECT, INDIRECT, 
CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE USE OF SUCH INFORMATION.  

THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S RISK.  

Notice of Copyright  

EarthGuard Owner’s Manual © 2020 by Australian Energy Research Laboratories Pty. Ltd. All Rights Reserved.  

Trademark  

AERL and the AERL logo are trademarks owned and used by Australian Energy Research Laboratories Pty. Ltd.  

These trademarks may be registered in Australia and other countries.  

Effective Date  

July 2020 (07/2020) 

 

 

 

 

 

Summary of Contents for EarthGuard EG-300

Page 1: ...EarthGuard Earth Leakage Detection Installation Operation Manual Models EG 300...

Page 2: ...Solar Micro Hydro Micro Wind and Cathodic Protection applications Contact Information Address Unit 15 1015 Nudgee Rd Banyo QLD 4078 Australia Phone 61 07 3129 0330 Email sales aerl com au Website http...

Page 3: ...t Description 7 Firmware 7 Supported System Components 7 Installation 8 Installation Standards 8 Detection Requirements 8 Mounting the Device 8 Wiring Information 9 Wire and Disconnect Sizing 9 EarthG...

Page 4: ...ual be read before beginning installation Only qualified electricians and technicians should install the EarthGuard This manual is intended for all installation technicians and the system owner Do not...

Page 5: ...quired to disconnect or reinstall faulty parts AERL will pay the cost of freight to return the repaired charge controller to the customer within Australia or New Zealand only The method of freight wil...

Page 6: ...Side EG 300 Input Power 12V Input 10 14 Vdc 12V Nominal Max Power Consumption 12V Input 120mA Input Power 5V Input USB C 4 5 5 5 Vdc 5V Nominal Max Power Consumption 5V Input 290mA Alarm Indication R...

Page 7: ...r range EarthGuard can be utilized in an integrated arrangement or as a standalone device for use with approved third party controllers power conversion equipment and battery systems Firmware This ins...

Page 8: ...and PV Array if the array exceeds 60Vdc That said because the AERL and Victron regulators are not galvanically isolated only a single EarthGuard is required to cover both the array and battery bank d...

Page 9: ...orque all terminal connections to 0 6 Nm 5 in lb To install cabling and configure the device the 4 x M4 CSK Phillips Screws holding the lid in place must be removed When removing the lid gently discon...

Page 10: ...he DC and DC sense wires are at risk of mechanical damage in their installed location appropriately rated in line fusing is highly recommended due to the potential fault currents available from the co...

Page 11: ...while the device is powered down Alarm Indication Relay The EarthGuard features a dry contact signal relay for use with the CoolMax SRX and other external devices such as the Victron Venus GX in order...

Page 12: ...er present After several seconds the All Clear green LED should start blinking if the fault is no longer detected Simulating a Fault If you would like to test the EG 300 has been correctly installed t...

Page 13: ...v 1 1 21st July 2020 13 AER013 REV 1 1 Note The EarthGuard documentation is being improved regularly If the relevant situation is not documented please contact AERL at either support aerl com au or on...

Page 14: ...USER MANUAL EarthGuard EG 300 Australian Energy Research Labs AER013 Rev 1 1 21st July 2020 14 AER013 REV 1 1 Page intentionally left blank...

Page 15: ...USER MANUAL EarthGuard EG 300 Australian Energy Research Labs AER013 Rev 1 1 21st July 2020 15 AER013 REV 1 1 Page intentionally left blank...

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